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RESEARCH PAPERS

Aircraft Engine Control Mode Analysis

[+] Author and Article Information
H. Brown

Engine Dynamics and Control Simulation, General Electric Company, Cincinnati, Ohio 45215

J. A. Elgin

Control Mode Analysis, General Electric Company, Cincinnati, Ohio 45215

J. Eng. Gas Turbines Power 107(4), 838-844 (Oct 01, 1985) (7 pages) doi:10.1115/1.3239820 History: Received January 24, 1984; Online October 15, 2009

Abstract

This paper describes the control mode analysis procedure that is used to establish closed-loop control requirements for advanced aircraft propulsion systems. The procedure utilizes anticipated variations in engine component performance, engine deterioration, and control tolerances in a statistical analysis to establish corresponding variations in engine output performance and safety parameters. Potential closed-loop control configurations are evaluated by this process, compared, and the best configuration selected for implementation into control law and schedule designs. A byproduct of the analysis is the establishment of engine design and performance margins. The paper will describe typical engine variational models used in this process, the General Electric COMET program designed to automate the analysis, and typical mode study results based on a current augmented turbofan engine.

Copyright © 1985 by ASME
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