Means and method for system performance tracking

Details Means and method for system performance tracking Means and method for system performance tracking

1998-02-03

2000-05-16

Teska, Kevin J.

Data processing: structural design, modeling, simulation, and em

Simulating nonelectrical device or system

Mechanical

703 2, 700 29, 700 32, G06G 748, G06F 760

Patent

active

060631295

ABSTRACT:
A method of tracking a system (1) having sensors (3) (e.g. gas turbine engines) by providing a computer model (4) which, from changes in sensor readings, can track (follow) changes in performance parameters of the system. These may be e.g. efficiencies of various of components such as compressors and turbines. In the common embodiment, the method used (Singular Value Decomposition) is a way of computing the most likely solution when there are more performance parameters than the number of sensors used and thus a degree of redundancy. The method allows system diagnosis and most importantly a tracked model allows the selection of a tailored control regime (9) which results in optimum efficiency for the individual system (engine).

REFERENCES:
patent: 5094127 (1992-03-01), Ishida et al.
patent: 5519605 (1996-05-01), Cawlfield
patent: 5777872 (1998-07-01), He
Lambert, "A Simulation Study of Turbofan Engine Deterioration Estimation Using Kalman Filtering Techniques", NASA Technical Memorandum 104233, National Aeronautics and Space Administration.
Orme et al, "Subsonic Flight Evaluation of a Propulsion System Parameter Estimation Process for the F100 Engine", published by the American Institute of Aeronatuics and Astronautics AIAA-92-3745.

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