NASA SBIR 2008 Solicitation


PROPOSAL NUMBER: 08-1 A1.11-9707
SUBTOPIC TITLE: Integrated Diagnosis and Prognosis of Aircraft Anomalies
PROPOSAL TITLE: Model Updating and Uncertainty Management for Aircraft Prognostic Systems

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Sentient Corporation
850 Energy Drive
Idaho Falls, ID 83401 - 1503
(802) 861-6300

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Nate Bolander
850 Energy Drive
Idaho Falls, ID 83401 - 1503
(208) 522-8560

Expected Technology Readiness Level (TRL) upon completion of contract: 4 to 5

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
This proposal addresses the integration of physics-based damage propagation models with diagnostic measures of current state of health in a mathematically rigorous method for the determination of remaining useful life. The principle goal of the proposed Phase I research is the investigation of issues associated with the integration of three independently developed algorithms (physics-based damage progression, diagnostics, and model updating architecture) in a single functioning system. Of particular interest is the ability of the proposed architecture to adequately represent the uncertainty associated with both diagnostic state estimation and loading conditions, and the propagation of such uncertainties to the remaining useful life prediction. The integrated prognostic system will be demonstrated using bearing damage (spallation) propagation models coupled with vibration derived diagnostic measures of spall severity obtained from in house testing. Following V&V of the baseline component-level prognostic system, extension of the existing technology towards support of subsystem-level (multi-model) prognostics will be pursued.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The proposed general-purpose set of reusable tools and code will substantially reduce the time and cost of developing on-board prognostics for new aircraft and spacecraft health management systems, while helping to ensure robust and accurate performance of the final system. Any system that uses sensor-based diagnostics to indicate state and models to predict fault progression (which includes most prognostics and health management systems) would benefit from the proposed toolset. This includes vehicle health management systems in spacecraft, launch vehicles, propulsion systems, and similar applications. Potential NASA applications are many, and include the Shuttle program and its successors, satellite health management systems, and exploration programs. Both orbiters and planetary rovers have components that do or could utilize autonomous health management technologies.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The proposed toolset will have extensive military and commercial applications. Again, any system that uses sensor-based diagnostics to indicate state and models to predict fault progression would benefit from the proposed toolset. Our vision for this technology is to develop a complete solution for most prognostics and health management applications, including the onboard framework and software components. System integrators or PHM/VHM developers will only need to add the application specific signal processing/diagnostics algorithms and fault progression model to rapidly assemble a complete prognostic capability. Sentient will strive to eventually make the architecture the de facto standard for prognostics by utilizing open interfaces, publishing all standards, and providing robust plug-and-play components. Aircraft and specifically propulsion systems are currently leading the way in implementation of new prognostic health monitoring technologies. Sentient is already working with the JSF program office, DARPA, and OEMs to develop new PHM technologies for this application.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Aircraft Engines
Autonomous Control and Monitoring
Autonomous Reasoning/Artificial Intelligence
Computer System Architectures
Controls-Structures Interaction (CSI)
Data Acquisition and End-to-End-Management
Data Input/Output Devices
Database Development and Interfacing
Expert Systems
Human-Computer Interfaces
On-Board Computing and Data Management
Portable Data Acquisition or Analysis Tools
Sensor Webs/Distributed Sensors
Simulation Modeling Environment
Structural Modeling and Tools
Testing Facilities

Form Generated on 11-24-08 11:56