Real-time estimation of gas turbine engine damage using a control-based Kalman filter algorithm

Journal Article · Wed Apr 01 00:00:00 EST 1992 · Journal of Engineering for Gas Turbines and Power; (United States)

DOI:https://doi.org/10.1115/1.2906571· OSTI ID:5105503

Kerr, L J; Nemec, T S; Gallops, G W ^[1]

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1. Pratt and Whitney, United Technologies Corp., West Palm Beach, FL (US)

In this paper 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.

• OSTI ID: 5105503
• Journal Information: Journal of Engineering for Gas Turbines and Power; (United States), Vol. 114:2; ISSN 0742-4795
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
GAS TURBINE ENGINES
DAMAGE
ACCURACY
AIRCRAFT
ALGORITHMS
DATA
ERRORS
INDUSTRY
MICROPROCESSORS
PERFORMANCE
REAL TIME SYSTEMS
RESPONSE FUNCTIONS
SENSITIVITY
TRANSIENTS
USES
COMPUTERS
ELECTRONIC CIRCUITS
ENGINES
FUNCTIONS
HEAT ENGINES
INFORMATION
INTERNAL COMBUSTION ENGINES
MATHEMATICAL LOGIC
MICROELECTRONIC CIRCUITS
330000* - Advanced Propulsion Systems
990200 - Mathematics & Computers