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RESEARCH PAPERS

Real-Time Estimation of Gas Turbine Engine Damage Using a Control-Based Kalman Filter Algorithm

[+] Author and Article Information
L. J. Kerr, T. S. Nemec, G. W. Gallops

Pratt & Whitney, United Technologies Corporation, West Palm Beach, FL

J. Eng. Gas Turbines Power 114(2), 187-195 (Apr 01, 1992) (9 pages) doi:10.1115/1.2906571 History: Received March 04, 1991; Online April 24, 2008

Abstract

A second-generation Kalman filter algorithm is described that has sufficient accuracy and response for real-time detection and estimation of gas turbine engine gas path damage caused by normal wear, mechanical failures, and ingestion of foreign objects. The algorithm was developed for in-flight operation of aircraft engines but also has application for marine and industrial gas turbines. The control measurement and microcomputer requirements are described. The performance and sensitivity to engine transients and measurement errors is evaluated. The algorithm is demonstrated with actual engine data of ice and bird ingestion tests.

Copyright © 1992 by The American Society of Mechanical Engineers
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