Model Updating and Uncertainty Management for Aircraft Prognostic Systems

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX09CC04P
Agency Tracking Number: 084293
Amount: $99,288.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
850 Energy Drive, Idaho Falls, ID, 83401
DUNS: 089822014
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Nate Bolander
 Principal Investigator
 (208) 522-8560
 nbolander@sentientscience.com
Business Contact
 Paula Lee
Title: Business Official
Phone: (802) 861-6300
Email: plee@sentientscience.com
Research Institution
N/A
Abstract
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.

* Information listed above is at the time of submission. *

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