Thrust Estimation System for Military Engine Test Cell Applications

Award Information
Agency: Department of Defense
Branch: N/A
Contract: N68335-11-C-0373
Agency Tracking Number: N093-181-0293
Amount: $749,691.00
Phase: Phase II
Program: SBIR
Awards Year: 2011
Solicitation Year: 2009
Solicitation Topic Code: N093-181
Solicitation Number: 2009.3
Small Business Information
Impact Technologies, LLC
200 Canal View Blvd, Rochester, NY, -
DUNS: 073955507
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jonathan DeCastro
 Principal Investigator
 (585) 424-1990
 jonathan.decastro@impact-tek.com
Business Contact
 Mark Redding
Title: President
Phone: (585) 424-1990
Email: mark.redding@impact-tek.com
Research Institution
 Stub
Abstract
Test cell acquisition of thrust data for the Joint Strike Fighter is often corrupted by vibrations, noise and interference associated with the test cell environment. Impact Technologies is partnering with Pratt and Whitney and Saratoga Control Systems, Inc. to develop a thrust estimation system based on a hybrid physics-based/empirical engine model to provide"virtual"measurements of thrust and other parameters of interest to test cell data reduction. The estimation system under development employs high-fidelity Numerical Propulsion System Simulation (NPSS) models as the embedded engine model in a constant-gain extended Kalman filtering structure. Employing this filtering structure in conjunction with a neural network empirical model allows for errors due to engine-to-engine variation, degradation, and test stand dynamics to be captured even during aggressive transients, resulting in a highly-robust reconstruction of thrust. To ensure penetration across engine platforms and test cell sites, it is proposed to first develop the estimation system using a commercial engine platform, then extend to a multi-axis military engine platforms. The multi-staged Phase II project is designed for full integration of the thrust estimation software in DoD/commercial engine test cells, while also fostering strong opportunities for insertion in on-board, model-based controls and diagnostic systems.

* information listed above is at the time of submission.

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