| BLUE ROAD RESEARCH
Clear Creek Business Park, 376 NE 219th Ave Gresham, OR 97030 | |
| Phone:
PI: Topic#: |
(503) 667-7772
Mr. Whitten Schulz OSD 01-M01 Awarded: 20FEB02 |
| Title: | Airframe Health Monitoring using Acoustic Emission Crack Detection with Bragg Grating |
| Abstract: | Identifying crack initiation in an aircraft structure through acoustic emission monitoring has been extensively used to predict the onset of damage. Currently, this technique is only applicable to external tests, as it requires ultrasonic transducers, not easily embedded into the structure. There is a need for in-situ acoustic emission monitoring to further enable effective and objective maintenance and repair decisions. It is proposed that optical fiber Bragg grating sensors be used to monitor acoustic emission pulses with a high-speed optical demodulation system being developed by Blue Road Research. These fiber gratings are non-intrusive, allowing for them to be left on the structure during service, for an in-situ acoustic emission monitoring system. This technology could be used to support damage assessment and health monitoring on a wide variety of aerospace platforms both military and commercial. It is also possible that this technology could be utilized on ships, bridges, and other structures. |
| NANOSONIC, INC.
P.O. Box 618 Christiansburg, VA 24068 | |
| Phone:
PI: Topic#: |
(540) 953-1785
Dr. Kristie L. Cooper OSD 01-M01 Selected for Award |
| Title: | Acoustic Emission Detection Using Fiber Bragg Gratings and Fast Signal Processing |
| Abstract: | The proposed program would develop high-speed optical fiber Bragg grating sensors and signal processing methods for the near real-time detection of acoustic emission events and associated material damage in advanced aircraft structures. Acoustic emission is associated with the occurrence and accumulation of microstructural damage in materials. By detecting the amplitude and frequency characteristics of such pulsed ultrasonic stress waves it is possible to determine when structural components are loaded to new maximum levels of stress, and to anticipate the onset of material failure. Optical fiber Bragg grating-based sensors offer a means of implementing networks of acoustic emission sensor elements on large structures such as aircraft. The proposed program would develop near real-time signal processing systems for such sensors, to enable high frequency response to acoustic emission, and thus the ability to characterize damage mechanism sources and pre-failure events. NanoSonic Inc. would work with the Fiber & Electro-Optics Research Center on campus at Virginia Tech on this program through a small subcontract. University researchers at FEORC were among the first to demonstrate the detection of acoustic emission using fiber sensors and systems in the 1970s and 1980s, and to quantitatively compare fiber sensors and conventional 2.25 MHz acoustic emission piezoelectric transducers. Acoustic emission (AE) is an important tool used for the nondestructive (NDE) evaluation of materials and structures. The market for conventional piezoelectric transducer-based AE instrumentation exceeds $250 million annually. The proposed program would also develop high speed fiber Bragg grating demodulation systems of commercial importance to other sensor, signal processing and optical fiber communication system applications. |
| SYSTEMS PLANNING & ANALYSIS, INC.
7331 Hanover Pkwy, Suite D Greenbelt, MD 20770 | |
| Phone:
PI: Topic#: |
(301) 474-1310
Mr. Christopher S. Baldwin OSD 01-M01 Awarded: 20FEB02 |
| Title: | Airframe Health Monitoring using Acoustic Emission Crack |
| Abstract: | Systems Planning and Analysis, Inc. (SPA) proposes to develop a temperature compensated Bragg grating based acoustic emission crack detection (AECD) sensor system based on our proprietary temperature compensation technique for matched Bragg grating sensor systems. Leveraging previous work by the sponsor, we will perform analytical and experimental analysis to determine optimal system parameters for the AECD system. The analytical models will involve the transmission of an acoustic wave within a composite laminate and the interaction of the wave with a surface mounted and embedded Bragg grating sensor. Composite test specimens conforming to the American Society for Testing and Materials standards (ASTM D5528 and ASTM D5766) will be fabricated and tested in the Phase I SBIR program. Testing of these specimens will provide an empirical method of determining optimal system parameters and validating the analytical models derived during the Phase I effort. System refinements will be implemented and tested to facilitate a risk reduction in pursuing follow on Phase II funding. Temperature compensation tests will be performed in an environmental chamber in a temperature range of 40 to 120 degrees Fahrenheit. The temperature compensation and system optimization of the acoustic emission crack detection system will enhance the present Bragg grating based technique currently considered by the technical sponsors. Through the use of fiber optic sensors, integration into composite structures will be a seamless transition into many fields beyond monitoring crack events on aircraft. This technology will enable a real-time monitoring of composite structures during operation and establish condition-based maintenance (CBM) practices for the fleet. |
| MANAGEMENT SCIENCES, INC.
6022 Constitution Avenue NE Albuquerque, NM 87110 | |
| Phone:
PI: Topic#: |
(505) 255-8611
Mr. Kenneth G. Blemel OSD 01-M02 Awarded: 18DEC01 |
| Title: | A Wireless Smart Dataport for Processing and Communication in Smart Spaces |
| Abstract: | This proposal offers to develop, prototype and demonstrate an inexpensive and general-purpose wireless Dataport as a means to implement "Smart Spaces". The Dataport would extract, process, interpret and relay data from wireless micro-sensors and other wireless devices in a ship's compartment. The Dataport will be bulkhead mounted or portable depending on the application. When Bulkhead mounted, the Dataport would act as a compartment information recorder and analysis unit. As a portable unit it would be used in collecting, processing, and decision support during inspection of ship spaces. The Dataport would provide a means to implement Condition Based Maintenance (CBM) and Prognostic Health Maintenance (PHM) to increase reliability, increase operational availability, and reduce total life cycle costs. The Dataport would incorporate diagnostic and prognostic algorithms and would process the sensed data into information and knowledge that would be transmitted to operators, supervisors and maintainers. The processing algorithms of the Dataport would also provide probabilistic risk assessment and decision support information that would be used in scheduling restock, maintenance and repair activities. An inexpensive Dataport would have broad application for automating CBM and PHM in defense and commercial applications. In particular the Dataport would be the coordinating data information recording and information system for maintaining equipment in areas of process plants, in sections and compartments of aircraft, in factories, control rooms, power generating plants, and any place where spaces are filled with failure prone vital systems. |
| RLW, INC.
1346 South Atherton Street State College, PA 16801 | |
| Phone:
PI: Topic#: |
(434) 975-2210
Ms. Sue George OSD 01-M02 Awarded: 17DEC01 |
| Title: | Smart Machinery Spaces |
| Abstract: | RLW, Inc. and SBS with support of Electric Boat and Newport News Shipbuilding will design and demonstrate (in a laboratory environment) a wireless smart machinery space network infrastructure. The effort will include an RF survey of a specific shipboard machinery space chosen in conjunction with the customer. The wireless network will employ a combination of BluetoothT and IEEE 802.11b to provide robust, cost-effective networking of smart, equipment sensors. The monitoring points will be selected using reliability-centered principles and measure appropriate parameters and perform onboard analyses to provide a reliable estimation of remaining useful life of equipment for CBM. The compartment-level wireless network(s) will report to a single-access point that can be accessed via a ship-wide network and/or a wireless portable digital assistant from within the compartment. These complementary access approaches provide the ability to avoid manual data collection and paper-based reporting as well as providing wireless access to off-ship technical support while performing maintenance and repair. In order to enable true wireless operation, selected nodes in the network will be equipped with thermal power scavenging based on COTS technology. Other ambient energy sources (e.g., vibration and rotational) will be investigated for applicability. Implementation of wireless networks of sensors creating "smart" islands in industrial applications and "smart" machinery spaces in naval shipboard applications represents a revolutionary step in the ability to cost-effectively monitor the health status and remaining useful life of machines. These islands and spaces are connected by backbone network technology (wired or wireless) to provide global accessiblity to real-time information. Elimination of wires from sensors reduces the cost of an individual sensor channel by as much as 80%. Incorporating processing in the sensor enables a true open architecture that can leverage the economies of scale of the industrial market which is projected at billions of pieces per year. The military gains access to technology that it would not otherwise be cost justified but provides useful tactical and logistics information. Real-time information accessible over a ship-wide network can substantially reduce sailor workload performing unpleasant tasks like roving watch and logging. |
| WILCOXON RESEARCH, INC.
21 Firstfield Road Gaithersburg, MD 20878 | |
| Phone:
PI: Topic#: |
(301) 216-3020
Mr. Willis Drake OSD 01-M02 Awarded: 20DEC01 |
| Title: | Smart Machinery Spaces |
| Abstract: | This proposal provides an architecture for condition-based maintenance hardware/software that will serve the Navy well for decades. The three hardware items are smart Sensor Nodes that can sense multivariate processes (switch positions, tank levels, pressure, flow rates, etc.) from legacy sensing elements already installed in naval equipment. The Sensor Nodes can also measure vibration of critical elements such as machinery bearings as well as temperature. Vibration data is preprocessed in the Sensor Nodes, transmitted over a wireless Bluetooth network to a Supervisory Master device, and processed the data into actionable information for the ship's officers. An Access Point converts the Bluetooth protocols into IEEE Std-802.11 RF signals and TCP/IP protocols for LAN distribution. The software consists of proven COTS routines to provide the data products such as accurate indication of remaining useful life (RUL). Concepts for power scavenging and power saving methods are presented. No single outage of a node or network will compromise the ability of the sensor system to provide information on the state of the bearing. This proposal is results of the best ideas from a leading vibration instrumentation manufacturer, a world-class software provider, and a major presence in the design and fabrication of naval vessels. Bearing failures are a major source of downtime and lost revenue in the commercial sector or reduced military effectiveness for the Department of Defense. With the proposed architecture, the unscheduled replacement of bearings could become a thing of the past. The system would be affordable since the Sensor Nodes can be produced in quantity for a small fraction of what bearing failures cost. The Access Points and Supervisory Masters are essentially commercial items tailored to the needs of equipment monitoring. Wilcoxon Research is one of the leading producers of condition-based maintenance (CBM) sensors and related equipment, worldwide. Success with this proposal will result in savings for the Department of Defense as well as a new line of affordable advanced CBM technology for industry. The "smart" machinery space concept could save hundreds of millions of dollars annually by providing a method to collect data that are precursors for mechanical failures. In the long term, Wilcoxon Research that the concept has validity for application to high-value road vehicles, railroad equipment, and off-road machinery such as heavy earthmoving equipment. The revenue stream to Wilcoxon and its partners would ensure an ongoing supply of improved equipment and lower costs to the end user. |
| WILLIAMS-PYRO, INC.
2721 White Settlement Rd Fort Worth, TX 76107 | |
| Phone:
PI: Topic#: |
(817) 335-1147
Mr. Brent Williams OSD 01-M02 Awarded: 20DEC01 |
| Title: | "Smart" Machinery Spaces |
| Abstract: | This SBIR will result in a distributed shipboard system that wirelessly monitors the health of equipment in machinery spaces and reports to a central location. The U.S Navy has been mandated with the task of reducing the current manning levels on ships while enhancing operational efficiency. Currently, a roving watch manually collects health data from up to 30 different machines at 30-minute intervals. This process is time consuming, potentially dangerous, error-prone and requires extensive manpower. Our proposed system automatically monitors, processes, and reports the health of machinery spaces, thus reducing manpower requirements significantly. The proposed system is composed of extremely low-power wireless smart sensors with power-harvesting capability and one Single Point Data Retrieval (SPDR) for each machinery space. The wireless sensors will form a dynamically reconfigurable ad-hoc network, which will wirelessly report to the SPDR. The SPDR will process the data using CBM and RUL software and forward the health findings to a central monitoring station, which will display the health status of every machinery space. When coupled with similar methods developed by Reduced Ships Crew by Virtual Presence (RSVP), this proposed system has the potential to save the U.S. Navy a $2.5-4 billion in life cycle cost avoidance. Our commercialization is a 5-part process. First is a product demonstration for the U.S. Navy and Bath Iron Works at WPI's in-house laboratory. Second, our system will undergo a field test on Navy ships. Based on the field test results, our system will be modified. The third step is a trial production to supply a test market. The trial production will allow evaluation of the production capability and process. The Navy vessel test market will provide feedback regarding system performance. Fourth, WPI's marketing department will investigate alternative product applications. Washing machines, air conditioners, and refrigerators are products that could perform condition-based maintenance using this system. Building controls and industrial/manufacturing applications also offer possible markets. The final step is full production and product launch. Initially, the target for our product launch is DD-21. However, this technology lends itself to backfit and forward-fit applications because the open architecture permits reconfiguration coverage for any ship network. For example, potential backfits include CG-47, DDG-51, and CVN-68. Potential forward fits are LPD-17, LHX, and CVX. We will also pursue partnerships with ship equipment manufacturers such as General Electric, allowing their products to reach consumers pre-equipped with our CBM system. |
| FOSTER-MILLER TECHNOLOGIES, INC.
431 New Karner Road Albany, NY 12205 | |
| Phone:
PI: Topic#: |
(518) 456-9919
Mr. Gordon Hirschman OSD 01-M03 Awarded: 20DEC01 |
| Title: | Fully Automated Bearing Residual Life Prognosis Wireless Sensor |
| Abstract: | Bearing failures are among the most costly, troublesome forms of breakdowns on mission critical machines within the Navy. A failed bearing causes extended downtime and high repair costs, particularly when secondary machine damage occurs. Magnetic chip detectors, simple vibration monitoring devices, and spectrographic oil analysis do not detect bearing distress until the bearing is in the later stages of failure. Recent advances in digital signal processing and sensor technology have improved on this, providing months-in-advance notice of a bearing failure, expressed in terms of Remaining Useful Life (RUL). A wireless sensor system is proposed that will take these advances to the next level and develop the statistical confidence accuracy required for trouble-free life prognosis for the monitored bearings. This sensor will easily integrate into a shipboard condition-based maintenance (CBM) system and will ultimately be applicable to bearings in a range of shipboard machinery operating in an at-sea environment. The market for wireless sensor technology extends far beyond DoD applications to include power generation, transportation, petrochemical, food processing, and pulp and paper industries. |
| RLW, INC.
1346 South Atherton Street State College, PA 16801 | |
| Phone:
PI: Topic#: |
(804) 975-2210
Ms. Sue George OSD 01-M03 Awarded: 17DEC01 |
| Title: | Fully Automated Bearing Residual Life Prognosis Wireless Sensor |
| Abstract: | RLW, Inc. and Impact Technologies with support of the Torrington Company will design and demonstrate a prototype wireless smart bearing residual life sensor entailing best-of-breed prognostic algorithms and open architecture able to integrate seamlessly with a compartment-level wireless network infrastructure. This effort entails three key technical objectives: (1) A quality-driven methodology for selection and qualification of particular CBM technologies; (2) Use of a previously developed hardware-independent software API for smart, networkable sensors; and (3) Design and construction of a prototype networkable, wireless sensor implementing selected condition-status and prognostic tools on a bearing of interest. The smart sensor will contain sufficient processing resources and state-of-the-art diagnostic and prognostic algorithms and models hosted on a sensor designed to be permanently installed on a machine at manufacture. The prototype wireless sensor will be demonstrated on a bearing of interest to the customer in a real application or a simple rig. These smart wireless sensors may be powered by energy scavenged from the environment and will become a part of a compartment-level network accessible from either a ship-wide network and/or a wireless portable digital assistant from within the compartment. Implementation of wireless networks of sensors creating "smart" islands in industrial applications and "smart" machinery spaces in naval shipboard applications represents a revolutionary step in the ability to cost-effectively monitor the health status and remaining useful life of machines. These islands and spaces are connected by backbone network technology (wired or wireless) to provide global accessibility to real-time information. Elimination of wires from sensors reduces the cost of an individual sensor channel by as much as 80%. Incorporating processing in the sensor enables a true open architecture that can leverage the economies of scale of the industrial market which is projected at billions of pieces per year. The military gains access to technology that it would not otherwise be cost justified but provides useful tactical and logistics information. Real-time information accessible over a ship-wide network can substantially reduce sailor workload performing unpleasant tasks like roving watch and logging. |
| WILCOXON RESEARCH, INC.
21 Firstfield Road Gaithersburg, MD 20878 | |
| Phone:
PI: Topic#: |
(301) 216-3020
Mr. Willis Drake OSD 01-M03 Awarded: 19DEC01 |
| Title: | Fully Automated Bearing Residual Life Prognosis Wireless Sensor |
| Abstract: | Wilcoxon Research, Bath Iron Works, and VibroTek have teamed to develop a method to fully automate determining the condition of mechanical bearings using wireless technology. Each organization will contribute the best technology and experience available to developing a method to determine current bearing status and life expectancy. Wilcoxon Research will build on its experience with wireless vibration sensors using Bluetooth networking to establish a sensor network that can be deployed on a naval ship in a cost-effective manner. VibroTek will contribute its extensive experience and software to reduce the vibration data to establish the bearing's remaining useful life without human intervention. Bath Iron Works provides guidance on the effectiveness of the system and access to information on installation methods for naval vessels. This proposal establishes a logical plan to develop the system over three phases of the SBIR award process. In Phase 1, emphasis is placed on modifications needed by the wireless bearing sensors and interfacing the sensor network to the VibroTek software. In successive SBIR Phases, additional software will be migrated into the wireless sensor units to provide an autonomous network of sensors that assess bearing condition. Bearing failures contribute a substantial fraction of machinery downtime in industry as well aboard naval ships. Wilcoxon Research has established a reputation as a world-class leader in Condition-Based Maintenance sensors and ancillary equipment. Success with this SBIR proposal will open new applications in industrial as well as military applications. |
| BLUE ROAD RESEARCH
Clear Creek Business Park, 376 NE 219th Ave Gresham, OR 97030 | |
| Phone:
PI: Topic#: |
(503) 667-7772
Dr. Stephen Kreger OSD 01-M04 Awarded: 17DEC01 |
| Title: | Fiber Optic Grating Strain Field Measurement for Aging Aircraft |
| Abstract: | A system is proposed that has the capability of being able to measure hundreds of fiber gratings in a single line. By combining this technology with the multi-axis fiber grating strain sensors developed by Blue Road Research as well as fiber pressure, temperature and moisture sensors effective health monitoring systems for aging aircraft can be realized. Blue Road Research intends to use this technology to support commercial and military aircraft applications and it has potential in the civil structures area as well. It will strongly complement the existing line of Blue Road Research commercial fiber grating sensor products. |
| IPITEK
2330 Faraday Avenue Carlsbad, CA 92008 | |
| Phone:
PI: Topic#: |
(760) 930-2220
Dr. David Schaafsma OSD 01-M04 Awarded: 14DEC01 |
| Title: | ULTRA-HIGH DENSITY FIBEROPTIC STRAIN SENSOR ARRAYS FOR STRUCTURAL EVALUATION AND MONITORING (PR01-470) |
| Abstract: | We propose to research and develop high-density optical fiber sensor systems, including low cost, flight-worthy instrumentation, for in-situ continuous monitoring and non-destructive inspection of aging aircraft. Using unique but established fiber sensor approaches, we will develop sensor systems capable of 1-2 orders of magnitude greater density than conventional sensor arrays, with a cost potential an order of magnitude lower. This system will provide critical data not only for maintenance and safety purposes but for evaluation of aircraft health in flight. This program will be a natural complement to our ongoing fiberoptic sensor efforts with Lockheed Martin Aeronautics Company, to develop new fiberoptic sensor technologies for integrated vehicle health management (IVHM) systems, and combine those with our unique fiberoptic avionics network for vehicle-wide diagnostics and information management. The applications for continuous monitoring and improved control are numerous, in both the civilian and military sectors. Fiberoptic sensors offer decided reliability, performance, and operational cost advantages over conventional types such as resistive strain gauges. |
| LUNA INNOVATIONS, INC.
2851 Commerce Street Blacksburg, VA 24060 | |
| Phone:
PI: Topic#: |
(540) 961-4514
Mr. Brooks Childers OSD 01-M04 Awarded: 17DEC01 |
| Title: | Measurement of Strain Fields in Aging Aircraft Using Distributed Bragg Gratings |
| Abstract: | The primary aging mechanisms that are known to reduce the economic service life of both civilian and military aircraft are corrosion, stress corrosion cracking, and fatigue. The Air Force Scientific Advisory Board on Materials Degradation estimates the costs of corrosion related detection and repair at between $1 and $3 billion dollars annually. An NRC study states that while preventative measures may eliminate two of the mechanisms, fatigue due to aircraft use will always be present. The nature of the problem calls for a global strain measurement techniques to monitor the effects of widespread fatigue damage. In order to achieve this global measurement, 1000's of measurements distributed throughout the aircraft will be required. Only the technique offered in this proposal has demonstrated the ability to obtain 1000's of high spatial resolution measurements on a single optical fiber. The Phase I effort will be used to tailor a prototype system to demonstrate the technology on an Air Force aircraft experiencing both fatigue and corrosion problems. In Phase II, a robust system will be fabricated according to Air Force specifications to meet the demands of routine inspection for widespread fatigue and corrosion damage. The commercial applications include health monitoring in civil, aviation, and marine structures. The push to smart materials and structures requires monitoring of all phases of the construction process and will create a large demand for cheap sensor arrays and deployable demodulation systems. The technology also competes with traditional foil strain gage and thermocouple technology that is well established in all areas of industry. As demodulation systems are introduced to solve measurement problems not addressed by traditional sensors, the technology will gain acceptance by the engineering community and encroach on the traditional sensors market share. |
| MANUFACTURING INSTRUMENTATION CONSULTANT
11000 Cedar Ave., Suite 427 Cleveland, OH 44106 | |
| Phone:
PI: Topic#: |
(216) 721-8030
Mr. Joshua C. Altherr OSD 01-M05 Awarded: 17DEC01 |
| Title: | Development of an Evanescent Microwave Probe Scanner for Detecting and Assessing Corrosion Beneath Painted and/or Sealed Surfaces |
| Abstract: | The corrosion of airframe structures is a serious problem that has economic, performance and safety consequences for both military and civilian fleets. The detection and repair of corrosion in airframe structures is time consuming and leads to delays in aircraft availability, hence, hindering the mission of the Air Force. Through the use of evanescent microwave probes (EMP), it is possible to image the onset of corrosion in large areas of metals and alloys used in military aircrafts. The use of EMPs has many advantages: i) it is already demonstrated that it detects the onset of corrosion in aluminum alloys, ii) owing to its very high operation frequency, the EMP can be scanned at a very fast speeds (> 1cm/s) over the structure, and iii) EMP arrays can be used to further reduce the scan time over very large structures. To realize this ability, we will construct suitable EMP arrays for imaging corrosion, enhance the array performance by making them wireless, and install these wireless arrays on micro-robots that will traverse the surfaces of large structures autonomously. The micro-robots equipped with EMP arrays will report their findings to a central processing unit upon discovering corroded regions. This will allow for the development of easily diagnosed images describing the severity of the corrosion found, as well as its exact location, thus saving the Air Force an estimated $5 million in maintenance and repair. MICC is interested in a variety of wireless non-destructive evaluation and imaging systems and the proposed study will enable it to move into many "inspection" areas where microrobotics, wireless control, and imaging sensors are needed. The EMP microrobots that will be developed through the proposed effort and its continuation in phase II will enable MICC to seek partnership with other more accomplished entities to pursue manufacturing of the developed system. In addition to the DoD applications for corrosion inspection, there are a number of other industries that this technology could provide benefits. These industries are the civilian airlines, chemical industry, and infrastructure where corrosion is a consistent problem: bridges, roads, buildings and piers. We are currently discussing possible commercialization plans with Tristan Technologies, Inc. San Diego CA. |
| PROVIDENCE HOLDINGS
P.O.box 32693 Charlotte, NC 28232 | |
| Phone:
PI: Topic#: |
(513) 271-5507
Mr. Luis Gomez OSD 01-M05 Awarded: 14DEC01 |
| Title: | Development of an Evanescent Microwave Probe Scanner for Detecting and Assessing Corrosion Beneath Painted and/or Sealed Surfaces |
| Abstract: | This proposal outlines the development of a wireless Evanescent Microwave Probe (EMP) NDE technique that 1) can detect corrosion on aluminum surfaces at the 100 micron size scale, even below layers of paint, 2) can provide information on the integrity and stability of adhesive bonded patches, 3) can detect minute changes in the metal-patch bondline such as bondline separation and changes in the ambient moisture under the patch and 4) carry out these critical NDE functions in a wireless (ie. remote) operation. In previous AFRL sponsored research, this EMP NDE technique has been used to detect the existence of corrosion pits under painted aircraft wing panels and cracks beneath an adhesive bonded repair patch applied to an aircraft aluminum skin panel. In addition, this EMP NDE system has been used to detect the presence of so-called "kissing bonds" at a metal-epoxy bondline of an otherwise sound epoxy-metal bonded structure. Being able to detect corrosion in aging aircrafts while they are in the field when the crack are the size of 100 microns or smaller. |
| TEXAS RESEARCH INSTITUTE AUSTIN, INC.
9063 Bee Caves Road Austin, TX 78733 | |
| Phone:
PI: Topic#: |
(512) 263-2101
Mr. Russell Austin OSD 01-M05 Awarded: 14DEC01 |
| Title: | Development of an Evanescent Microwave Probe Scanner for Detecting and Assessing Corrosion Beneath Painted and/or Sealed Surfaces |
| Abstract: | Current NDI methods cannot detect corrosion onset in painted/sealed aluminum. TRI/Austin's team, including the Applied Microwave Nondestructive Testing Laboratory and Boeing, has successfully used microwave probes to detect 0.08 mm corrosion flaws in primed and painted aluminum panels covered with aircraft. However, no fieldable microwave systems exist today. TRI/Austin will: 1. Make samples with small (down to 25 microns) machined and corroded pits covered by aircraft primers, paints and appliques 2. Experimentally refine inspection parameters for field probes 3. Design battery powered, handheld microwave probes and "plug and play" microwave probes to be integrated with Boeing's automated MAUS scanner. 4. Generate a Business Plan to guide commercialization of both probes The handhled "stud finder" style microwave probe will allow field personnel to: . quickly detect "hot spots" in the field . provide materials and labor planning for Programmed Depot Maintenance (PDM) The MAUS plug-in version of the microwave probe will allow depot level personnel to: . accurately map and measure the extent of corrosion. . conduct data management to monitor actual progression of hidden corrosion areas . base repair/planning decisions on known corrosion rather than trending based on old patterns Both probes will detect tiny corrosion pits without depainting. Development of scanners to detect early stage aluminum corrosion without depainting will save military and commercial aircraft maintenance personnel hundreds of labor hours and weeks of aircraft downtime per maintenance cycle. Environmental impacts caused by depainting will also be removed. Non-aircraft applications include automotive and shipping industries. The MAUS integrated microwave NDI probe will provide a cost effective inspection tool to the dozens of existing MAUS users, while the handheld microwave probe will be less expensive than COTS ultrasonic or eddy current flaw detectors. The market for these probes is projected to exceed $100,000/yr. |
| CREARE, INC.
P.O. Box 71 Hanover, NH 03755 | |
| Phone:
PI: Topic#: |
(603) 643-3800
Dr. Bruce R. Pilvelait OSD 01-M06 Awarded: 14DEC01 |
| Title: | A Multivariable Remaining Useful Life Prognosticator for Hydraulic Pumps |
| Abstract: | To avoid catastrophic failure of aircraft hydraulic pumps, scheduled maintenance procedures often call for their replacement even though significant useful life may remain. Creare proposes to develop a Remaining Useful Life (RUL) prognostication tool that facilitates the move toward more cost effective Condition-Based Maintenance (CBM) procedures. The system is based on the monitoring of several key operating parameters, while a sophisticated predictive model computes RUL and allows maintenance personnel to replace the pump only when necessary. The system will be automated, low cost, and easy to use by maintenance personnel and has the potential to reduce manpower, materials, and other maintenance costs. In Phase I, we will develop a benchtop prototype and use synthesized pump monitoring signals to formulate the predictive models. Further, we will thoroughly define aircraft and maintenance personnel needs, to ensure that we develop a system that reduces manpower requirements and costs and extends equipment lifetime. In Phase II, we will further refine the system, providing a field-ready system that can be thoroughly evaluated during actual aircraft hydraulic pump lifecycle tests. This system has the potential to drastically improve aircraft safety and reduce maintenance costs by facilitating a Condition-Based Maintenance approach for hydraulic pumps. This technology is applicable to all commercial and military aircraft, so the potential market is substantial. Further, the predictive models developed for hydraulic pumps are also applicable to other types of fluid pumps and rotating machinery. |
| IMPACT TECHNOLOGIES, LLC
125 Tech Park Drive Rochester, NY 14623 | |
| Phone:
PI: Topic#: |
(814) 861-6273
Mr. Carl S. Byington OSD 01-M06 Awarded: 14DEC01 |
| Title: | In-Line Health Monitoring System for Aircraft Hydraulic Pumps & Motors |
| Abstract: | Impact Technologies proposes to develop and demonstrate a monitoring system that assesses the health of aircraft hydraulic pumps and motors. The approach described herein includes performance models, feature level fusion, and adaptive modeling for estimating degradation through the collection of in-line pump data and onboard processing. This model-based and feature fusion approach will significantly improve the remaining life predictions over what is possible using single parameter trending. The appropriate performance and degradation models will be developed within a probabilistic framework that inherently captures distributions in the data due to random processes and measurement error. Moreover, the failure probability framework will directly identify confidence bounds associated with specific component failure modes progression. By providing continuous, on-line updates/adjustments of the critical parameters used by the fatigue/damage models based on system level measurements, more accurate failure rate predictions can be made throughout the life of the component. Impact Technologies proposes to develop and demonstrate a monitoring system that assesses the health of aircraft hydraulic pumps and motors. The approach described herein includes performance models, feature level fusion, and adaptive modeling for estimating degradation through the collection of in-line pump data and onboard processing. This model-based and feature fusion approach will significantly improve the remaining life predictions over what is possible using single parameter trending. The appropriate performance and degradation models will be developed within a probabilistic framework that inherently captures distributions in the data due to random processes and measurement error. Moreover, the failure probability framework will directly identify confidence bounds associated with specific component failure modes progression. By providing continuous, on-line updates/adjustments of the critical parameters used by the fatigue/damage models based on system level measurements, more accurate failure rate predictions can be made throughout the life of the component. |
| INTELLIGENT AUTOMATION, INC.
7519 Standish Place, Suite 200 Rockville, MD 20855 | |
| Phone:
PI: Topic#: |
(301) 222-0444
Dr. Chiman Kwan OSD 01-M06 Awarded: 18DEC01 |
| Title: | A Novel Health Monitoring Approach for Hydraulic Pumps and Motors |
| Abstract: | In this proposal, Intelligent Automation, Incorporated (IAI) proposes a novel and robust approach to detect hydraulic pump and motor failures. The algorithm was recently developed by Dr. Chiman Kwan, the principal investigator of this proposal, and his collaborators. It consists of three major steps. First, based on normal raw sensor measurements, a residual model is built off-line for a given hydraulic pump or motor system. The technique is called Minor Component Analysis (MCA). The residual model outputs are non-zero when there is fault. Our approach is direct, accurate, and based on only normal measurement data. Second, based on the residual model outputs, we define a fault detection index, which gives fast and accurate detection of failures. Third, we will determine the nature of the failures by reconstructing the fault magnitude. Furthermore, from the fault magnitude information, we can predict the remaining life of a component. The proposed method works for both static and dynamic systems. The new algorithm is highly relevant to this subtopic since it specifically asks for advanced techniques to monitor hydraulic pumps and motors. Our idea of identifying component failures will give accurate and early warning of failures and hence exactly fulfills the goals of this subtopic. Health monitoring technology has many applications such as hydraulic pumps, motors, helicopter gearbox systems, jet and automotive engine diagnostics, and many of DOD's flight critical systems. The jet and automobile industries are multibillion dollar industries that are commercial grounds for this technology. The proposed FDI method can be used in many systems mentioned above. |
| INNOVATIVE DYNAMICS, INC.
2560 North Triphammer Road Ithaca, NY 14850 | |
| Phone:
PI: Topic#: |
(607) 257-0533
Mr. Jack Edmonds OSD 01-M07 Awarded: 12DEC01 |
| Title: | In-line Hydraulic Fluid Contamination Multi-Sensor |
| Abstract: | Current hydraulic fluid detectors cannot perform real-time analysis of contamination. IDI will address this problem by developing an in-line multi-sensor for monitoring particulates, water, and chlorinated solvents. An algorithm will be developed to fuse the sensor outputs and provide real-time information to maintenance staff. A key challenge will be to incorporate affordable technologies into a simple-to-operate unit that is small, lightweight and reliable. This program will focus on new and existing sensor technologies that can readily be incorporated into a sensor package with minimal development effort. Candidate sensor technologies that will be evaluated include acoustics, capacitive, and optical. During the Phase I program, IDI will develop a working prototype that demonstrates the multi-sensor's capability in determining contamination levels in-situ. Successful feasibility tests will lead to development of a full-scale working unit in Phase II for testing by the Air Force. This system is expected to provide real-time diagnostic information on the contamination level of hydraulic fluids at a substantial cost savings to the government. An in-line sensor would be directly applicable to the new generation ground support equipment with built-in fluid purifiers. The rapid, on-site capability to assure the hydraulic fluid contamination level is essential to avoid significant delays in servicing the aircraft. Another application would be direct determination of the hydraulic fluid contamination in the aircraft when used on-board as a stand-alone device. Using an online monitor will therefore help provide better reliability and longer system life. |
| METSS CORP.
300 Westdale Avenue Westerville, OH 43082 | |
| Phone:
PI: Topic#: |
(614) 797-2200
Dr. Bradley L. Grunden OSD 01-M07 Awarded: 12DEC01 |
| Title: | In-line Hydraulic Fluid Contamination Multi-Sensor |
| Abstract: | Currently, the U.S. Air Force is evaluating a number of sensor-based techniques that can monitor the `health' of hydraulic fluids on-line and in real time. Implementation of such technology will drastically reduce the risk of premature hydraulic system failures by providing immediate feedback with respect to the condition of the hydraulic fluid. In addition, the U.S. Air Force has embarked on the development of a new generation of ground support equipment, which will possess an on-board hydraulic fluid purification unit to assure that clean, contamination free hydraulic fluid is used to service military aircraft. However, the key component required to achieve these goals, namely an in-line hydraulic fluid multi-sensor capable of determining the level of particulate contamination, water concentration, and chlorinated solvent concentration, has yet to be developed. The primary objective of the proposed research is to demonstrate the capabilities of three individual contaminant sensor techniques to meet the requirements of the U.S. Air Force, and to provide ample support for the feasibility of combining these techniques into a multi-sensor capable of monitoring the contaminant levels of aerospace hydraulic fluids on-line and in real time. The proposed program will assist in providing more rapid, accurate and reliable information with respect to the condition of aerospace hydraulic fluids used in military aircraft by measuring the level of contamination on-line and in real time. In addition, as a stand-alone device, this technology will enable the direct determination of hydraulic fluid quality in aircraft. It is expected that similar benefits will be afforded by this technology in the commercial airline industry, as well as in other industries that utilize hydraulic fluid power. Conceptually, it may be possible to extend this technology into other fluid systems, such as conventional motor oil. |
| PHYSICAL SCIENCES, INC.
20 New England Business Center Andover, MA 01810 | |
| Phone:
PI: Topic#: |
(978) 689-0003
Dr. Michael A. White OSD 01-M07 Awarded: 12DEC01 |
| Title: | In-line Hydraulic Fluid Contamination Multi-Sensor |
| Abstract: | A novel three-stage optical multi-sensor for contamination of aerospace hydraulic fluid is proposed. This device will measure particulate contamination concentration and size distribution, allowing accurate alarm thresholding in accordance with existing military specifications for particulates in MIL-H-83282 hydraulic fluid. Additionally, free and dissolved water and solvent concentrations will be measured using proven laser absorption spectroscopy techniques. The resulting multi-sensor will provide a robust and reliable monitoring system to be installed in-line with hydraulic fluid flow systems present in ground servicing equipment or elsewhere on the flight line. This system will allow real-time monitoring and alarm for each species of contaminant as well as a readout of contaminant level. If the proposed project succeeds through Phases I, II, and III, then a robust new technology will be available to the military for facilitating the detection of particulate, water, and solvent contamination in hydraulic fluid. While the current proposal is aimed at the expressed Air Force need in reference to aerospace hydraulic fluid, it is likely that this technology will find widespread application to non-military hydraulic systems as well. Industrial producers may utilize the techniques described to automate refinery operations, and the techniques may find applications that cannot yet be envisioned. These applications could include virtually any liquid process where water or solid intrusion in minute quantities constitute a serious problem. |
| APES, INC.
6669 Fyler Ave. St. Louis, MO 63139 | |
| Phone:
PI: Topic#: |
(314) 644-6040
Dr. Scott A. Prost-Domasky OSD 01-M08 Awarded: 06FEB02 |
| Title: | Fretting Fatigue Model |
| Abstract: | The multi-task objectives of the plan discussed in this proposal are: research the role and effects of fretting on structural life of components, develop and demonstrate the feasibility of integrating candidate fretting fatigue predictive analytic model(s) into structural integrity methods, integrate and implement the techniques for applications to present and future U.S. military weapons programs, commercial aviation, automotive, and mechanical equipment and provide industry access to the predictive tools and information for commercialization. Fretting, as defined by the American Society for Metals Handbook Volume 10: Failure Analysis and Prevention, is a wear phenomenon that occurs between two mating surfaces: it is adhesive in nature, and vibration is its essential causative factor. Usually fretting is accompanied by corrosion. In general, fretting occurs between two tight fitting surfaces that are subjected to a cyclic, relative motion of extremely small amplitude. Fretted regions are highly sensitive to fatigue cracking. Under fretting conditions fatigue cracks are nucleated at very low stresses. Nucleation of fatigue cracks in fretted regions depends mainly on the state of stress on the surface and particularly on the stresses superimposed on the cyclic stress. The time to nucleation of cracks can be significantly reduced as a result of fretting. Common sites for fretting are in joints that are bolted, keyed, pinned, press fitted, and riveted. These sites are common in the assembly of most air vehicles, ground vehicles, power plants, equipment, and machinery. All applications that have safety issues, maintenance issues, and service life requirements will benefit from quantitative methods that provide the impact of fretting on the component's service. The approach APES, Inc. proposes for this SBIR improves the Holistic Life Prediction Methodology (HLPM) and the corresponding software ECLIPSE that implements the HLPM by adding a fretting fatigue capability that will be validated and verified with experimental and field service data (if available). Phase II's product will be a robust analytical approach that adequately accounts for fretting fatigue mechanisms and influences on predicted structural lives, having tremendous potential for improving durability and damage tolerance (DADT) in many industries. The aircraft industry, both commercial and defense, will be the first industry recipient of the applications afforded by this program. Systems in the aircraft industry that will be afforded benefits by improved analytical fretting fatigue approaches include transports, fighters, helicopter, commercial, small aircraft, and their subsystems, including engines. A robust analytical approach will have many benefits to other industries besides the aircraft industry. Improvements in analytical methods in the automotive, heavy machinery and medical device industries will be possible. For instance, fretting and wear in automotive engines and other components with moving parts such as differentials and transmissions are difficult problems that can become quite costly over the life of an automobile. Also, it is well known that wear and fretting in heavy machinery cost businesses millions each year in maintenance downtime, repair bills, and capital costs for replacement machinery; improvements in analytical predictive methods will contribute to improved maintenance, inspection and intended usage procedures for this type of equipment. |
| RESEARCH APPLICATIONS, INC.
11772 Sorrento Valley Road, Suite 145 San Diego, CA 92121 | |
| Phone:
PI: Topic#: |
(858) 259-7541
Dr. Jalees Ahmad OSD 01-M08 Awarded: 06FEB02 |
| Title: | Fretting Fatigue Model |
| Abstract: | The proposed effort is aimed at developing and experimentally validating a model and software for life prediction of structures prone to fretting fatigue damage in benign as well as corrosive environments. An innovative approach with high probability of success is proposed. The proposed modeling framework is based on a recent breakthrough approach developed by Research Applications, Inc. (RAI) that has captured the attention of several military aerospace and commercial heavy equipment manufacturers. In Phase I, RAI's mechanics based model and framework will be validated using available test data on an alloy of direct interest to the Air Force. The framework will be designed to complement ongoing research and development at AFRL on corrosion fatigue life prediction and for further development in Phase II as a stand-alone software product for marketing to the commercial sector. The proposed model will directly benefit prognostic and diagnostic methods developments related to Condition Based Monitoring, Structural Health Monitoring and Aging Aircraft efforts of the Air Force. The need for a Fretting fatigue life prediction model goes well beyond military and aerospace structures. A much broader market exists in virtually all mechanical equipment industries such as automotive, heavy equipment (e.g., Caterpillar), electronics and electrical, health (orthopedic implants) and MEMS. The proposed product will have an immediate and broad market. |
| POSITRON SYSTEMS, INC.
2676 Balboa Idaho Falls, ID 83404 | |
| Phone:
PI: Topic#: |
(208) 523-2466
Mr. Joel Wenzinger/D.W.Akers OSD 01-M09 Awarded: 06FEB02 |
| Title: | Reliability Algorithms for Corrosion Fatigue |
| Abstract: | The objective of this proposal is to utilize a new technology developed at the Idaho National Engineering and Environmental Laboratory (INEEL) and licensed by Positron Systems Inc. that can be used to accurately and nondestructively assess dislocation densities and dislocation types in metals and polymers. This research will focus on developing algorithms to estimate the reliability of corrosion fatigue damage assessments and remaining life estimates. The principal emphasis will be on obtaining accurate remaining life estimates for actual Air Force aircraft components that have been or are currently in use. These data will be used to begin development of accurate remaining life estimates for specific operational scenarios for the items examined. Positron Systems will collaborate with Idaho State University, and the INEEL to understand the phenomena associated with corrosion fatigue; perform assessments of both simulated and actual corrosion fatigue specimens; and develop algorithms that define the remaining life of the types of components examined. This technology has major implications relative to the development of accurate models needed to accurately predict the remaining life of components and the maintenance requirements for these components. Specific issues identified with implementing CBM include defining fatigue damage algorithms that can: (1) assess corrosion fatigue damage accurately; (2) predict how the damage will grow; and (3) provide a reliability measure for (1) and (2). This research will provide a reliability measure essential for developing CBM. |
| STI TECHNOLOGIES
1800 Brighton-Henrietta Townli Rochester, NY 14623 | |
| Phone:
PI: Topic#: |
(716) 424-2010
Dr. Dan Ghiocel OSD 01-M09 Awarded: 06FEB02 |
| Title: | Reliability Algorithms for Corrosion Fatigue |
| Abstract: | . The proposed innovative research will provide an advanced stochastic framework for developing an integrated risk-based condition assessment and life prediction-analysis system for a cost effective maintenance system for aircraft components. Corrosion fatigue is a key damage mechanism. Based on the component risk predictions, the reliability of damage detection and the reliability of damage growth prediction can be assessed. The reliability measures can be used for improving safety and readiness, and reduce operation and support costs. The proposed integrated system can serve as a state-of-art probabilistic component reliability prediction system that includes all significant post-design aspects, including manufacturing defects, operational loading history, progressive corrosion fatigue damage and life consumption under interactive failure modes, maintenance activities (inspection, repair, replacement). The proposed probabilistic component design system combines stochastic stress analysis and life prediction algorithms with risk-based maintenance analysis. The system can be also used for comparing different designs in terms of risk/safety including maintenance activities or performing "what-if analysis" to see the effects of different design modifications on component failure risks, life prediction and induced costs. The proposed probabilistic approach will offer a generic engineering capability for the reliability component risk evaluation and fatigue corrosion life prediction available for all industries. It is strongly believed that the created engineering capability and software tools developed under this effort will have a rapid spread on industry markets |
| ADVANCED STRUCTURAL TECHNOLOGY, INC.
455 N. Jackson Ave. University City, MO 63130 | |
| Phone:
PI: Topic#: |
(203) 878-8327
Mr. William T. Fujimoto OSD 01-M10 Awarded: 05FEB02 |
| Title: | Improved Rotorcraft Substantiation & Usage Tracking Methodology |
| Abstract: | The objective of this project is to develop and validate improved methodology for the substantiation and the usage-based tracking of rotorcraft dynamic system components. A Helicopter Information Retrieval & Substantiation System(HIRSS) is proposed which consists of (1) an Universal Damage Tracking Algorithm(TM) capable of accommodating the different fatigue analysis methodologies of the manufacturers, (2) a flight loads and logistics database management system, and (3) a CAD-based scenario modeler which allows damage summation scenarios to be constructed using point n'click modeling. With the flight loads DBMS, a scalable flight loads database that can be queried by the damage summation algorithm can be automatically built from flight data tapes. With the logistics DBMS, the HIRSS can serve as a base station for processing data from on-board HUMS, and as a maintenance and logistics decision support system. With the scenario modeler, the HIRSS can serve as a methodology development platform, whereby nested multi-level Monte Carlo risk assessments can be set-up or modified, using point n'click modeling, to assess the role of each stochastic driver on the reliability of a member. Availability of the HIRSS can lead to an improved substantiation methodology for dynamic system components. It can help identify any conservatisms which may lead to the premature or unnecessary removal of components, leading to lower operating costs to fleet operators. Because the HIRSS also allows certifying agencies to independently corroborate retirement times, it can also "force" the development of an universal substantiation methodology for the rotorcraft industry. |
| INTELLIGENT AUTOMATION CORP.
13029 Danielson Street, Suite 200 Poway, CA 92064 | |
| Phone:
PI: Topic#: |
(858) 679-4140
Dr. Thomas Brotherton OSD 01-M10 Awarded: 28JAN02 |
| Title: | Regime Recognition System |
| Abstract: | Accurate usage information collected by Health and Usage Monitoring Systems (HUMS) coupled with improved structural fatigue life calculation methodologies promise to reduce helicopter operational and support costs while maintaining current flight safety levels. Current fatigue life calculations assume worst-case flight profiles in determining component life. This approach may be outdated or not reflective of actual aircraft usage. IAC proposes to develop and demonstrate a low cost regime recognition capability as an extension to the US Army's Vibration Management Enhancement program and related UH-60 engine diagnostic system. Our approach relies on multi-sensor data fusion technology and flight parameters collected by the VMEP to provide an accurate flight regime calculation. Recording time in particular flight regimes has the potential of extending aircraft component life without changing proven lifing models. IAC is teaming with Sikorsky Aircraft to bring their substantial usage and component lifing expertise and guide IAC in the development of the regime usage technology. Proposed technologies will: 1) Provide actual flight time, take off and landings, turns and climbs 2) Develop an inferred gross weight calculation 3) Create tools for modification of algorithms and parameters and comparison with established component damage tables. The potential commercial applications for the technology, techniques, and systems to ultimately come out of this SBIR are significant. Sikorsky Aircraft, a partner on Phase I, is interested in applying the technology developed here to its helicopters. If Phase I is successful, Sikorsky will also participate on Phase II and will be a potential Phase III transition / commercialization partner. The technology to be developed here can be applied to significantly improve automated usage monitoring and condition-based maintenance of all military and commercial aircraft as well as all commercial / industrial gas turbine engines (such as those used in electrical generation plants). |
| SYSTEMS PLANNING & ANALYSIS, INC.
7331 Hanover Pkwy, Suite D Greenbelt, MD 20770 | |
| Phone:
PI: Topic#: |
(301) 474-1310
Dr. Jason S. Kiddy OSD 01-M10 Awarded: 24JAN02 |
| Title: | Structural Component Substantiation Methodology |
| Abstract: | Recently, a number of active military helicopters have been outfitted with a number of sensors which may be used to perform usage monitoring for the individual helicopters. However, a methodology must be developed to utilize this information in an effective manner to reduce maintenance costs while maintaining the overall safety of the aircraft. Systems Planning and Analysis, Inc. (SPA) proposes to utilize artificial neural networks to analyze the helicopter sensor data to perform regime recognition and flight load determination. Based on a detailed Monte Carlo simulation using assumed flight loads and fatigue data, the current helicopter usage monitoring data, and statistical analysis, SPA will develop an updated component life prediction while maintaining a quantitative reliability estimate. Maintenance costs for replacing life-liminted components in rotorcraft is a substantial component of the total operating costs for all helicopters, both military and civilian. These components are replaced after set number of flight hours to ensure that they will not fail in use. However, the replacement times for these components must be based on a worst-case scenario. The proposed usage monitoring system provides a methodology to monitor the loads placed on these components and to then replace the components when a reasonable amount of fatigue life has been expended. This capability will save rotorcraft operators both the component and maintenance costs associated with early replacements. |
| WESTAR CORP.
6808 ACADEMY PARKWAY EAST, N.E, BUILDING C, SUITE ALBUQUERQUE, NM 87109 | |
| Phone:
PI: Topic#: |
(256) 430-1610
Mr. David White OSD 01-M10 Awarded: 05FEB02 |
| Title: | Structural Component Substantiation Methodology |
| Abstract: | The proposed program will integrate off-the-shelf, operationally proven approaches and technologies to formulate a comprehensive system methodology to safely determine the fatigue lives of helicopter structural components based upon actual operational usage. The development of the system methodology include the following specific approaches: (1) Identification of health and usage monitoring system (HUMS) flight parameters required to sufficiently define the flight regimes experienced by structural components during operational usage. (2) Establishment of methods for effectively recognizing the flight regimes and the amount of time, or number of events, that occur in each regime. (3) Determination of the rate at which structural components accumulate damage in each of the flight regimes. (4) Assessment of Pareto-type approaches for achieving (1), (2) and (3) by ensuring conservative, rather than precise, results. For example, data that are difficult or expensive to acquire might be conservatively estimated. (5) Evaluation of each step of the process to ensure that the resulting structural component fatigue lives maintain the required level of structural reliability. The comprehensive system methodology that is developed to safely determine the fatigue life of structural components will (1) monitor and evaluate structural component fatigue damage accumulation and improve safety, maintainability, and cost, and (2) ensure the structural reliability that results from the process. The fatigue damage accumulation will be used to schedule structural component maintenance, overhaul, and replacement. The methodology will have applications to any mechanical system with fatigue-critical structural components for which the repeated loading can be determined. These applications include many military and civilian systems: aircraft, land vehicles, ships, power generators, industrial machinery, fixed structures (bridges, seaport cranes, off-shore oil rigs, etc) and others. |
| JOHNSON RESEARCH & DEVELOPMENT CO., INC.
1640 Roswell St., Suite J Smyrna, GA 30080 | |
| Phone:
PI: Topic#: |
(770) 438-2201
Mr. Lonnie Johnson OSD 01-M11 Awarded: 05FEB02 |
| Title: | Power Scavenging in a Cold, Dark Storage Environment. |
| Abstract: | This research project investigates natural and non-natural energy sources available in the environment that can be scavenged to provide electrical power. The sources considered are: thermal, barometric pressure, acoustic, humidity, water, wind, solar and electromotive (low frequency and radio frequency waves). Most existing techniques for scavenging power are built around ideal environments. For example, solar cells may be employed when adequate light available to meet operational requirements of the system being powered. The weapon systems will most likely not have ideal environments for power scavenging yet the energy source must be more reliable than solar as sufficient power must be scavenged on a more or less routine bases for sustained operation of the missile monitoring system. As stated in the proposal solicitation, in `bunker storage', the environment has fairly cool temperatures, no light and no mobility. Preliminary tests will be conducted to evaluate the potential for scavenging power based on ambient temperature and humidity. There are numerous applications for this technology when successfully developed. These applications include a wide range of electronic devices from remote control devices for TVs, garage openers and automobile locks to personal electronics such wrist watches and electronic pagers. Such a technology is needed for package identification and condition monitors in the transportation and shipping industry. The banking industry is rapidly moving toward the use of smart cards which will have embedded computers inside where maintaining internal batteries in a charged state is one of the most challenging problems facing the industry. Security access cards implantable medical devices are also ideal application for the proposed technology |
| MANAGEMENT SCIENCES, INC.
6022 Constitution Avenue NE Albuquerque, NM 87110 | |
| Phone:
PI: Topic#: |
(505) 255-8611
Mr. Kenneth G. Blemel OSD 01-M11 Awarded: 25JAN02 |
| Title: | Power Scavenging in a Cold, Dark Storage Environment. |
| Abstract: | This SBIR will perform research leading to design, prototyping, and feasibility demonstration of an Inactive RF Tag made with a Radio Frequency Micro-Electro-Mechanical Systems (RF-MEMS) as a means to provide power scavenging in a power poor environment found in underground missile storage areas. The research will develop the use of RF-MEMS switches in conjunction with RF MEMS sensors as a means to detect and collect ambient and RF energy generated by portable systems used during inspections of an Environmental Monitoring System (EMS). The project will design, build, test, and demonstrate a prototype Inactive RF Tag that, when not being interrogated, consumes zero watts and collects power from ambient RF in a micro capacitor acting as a battery charger. In use, the Inactive RF Tag will awaken on entry of the soldier assigned to inspecting the stored munitions. The collected energy will be used to conserve the energy stored in the EMS, thus significantly increasing its battery life. Power scavenging techniques in cold dark storage areas could revolutionize the electronic market, in the same way solar power scavenging did. This technology could be used in conjunction with solar power cells and be able to provide charging ability during both night and day. Such a device will have broad use in inventory control, enabling battery-less, wireless sensor systems, in wireless monitoring of stored products, and reduce the use of expensive batteries used in remote wireless inspection systems. |
| SCENTCZAR CORP.
213 Taylor Street Fredericksburg, VA 22405 | |
| Phone:
PI: Topic#: |
(540) 729-3927
Dr. Joseph Roehl OSD 01-M11 Awarded: 29JAN02 |
| Title: | Three energy sources that will work in a cold, dark, static environment |
| Abstract: | Project will evaluate energy sources that are alternatives to chemical storage batteries for a miniature transponder in cold dark spaces. In order of lowest to highest technical risk: a beta battery using a hermetically sealed beta source, RF energy scavenging, and a miniature reformer-fuel cell that scavenges energy from naturally occurring methane or fuel vapors. Power supply based on one of these energy sources will |