Extended implicit model following as applied to integrated flight and propulsion controlAn extended model-following control-synthesis method, including loop-transfer recovery, is presented and applied to synthesize control laws for integrated flight and propulsion control (IFPC). The vehicle considered is representative of an unstable modern fighter aircraft; with a two-dimensional thrust-vectoring and thrust-reversing nozzle. The linearized design model includes both airframe and engine dynamics. A model-following formulation of the LQR problem is extended to handle this hybrid problem. Compensators are then obtained to realize an output-feedback control law, by using a loop-transfer-recovery procedure. The airframe and engine responses are decoupled, and perfect airframe response following is obtained. The loop transfers also reveal good stability robustness and reasonable loop cross-over frequencies that would not lead to excessive actuation requirements.
Document ID
19900060642
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmidt, David K. (Arizona State Univ. Tempe, AZ, United States)
Schierman, John D. (Arizona State University Tempe, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Cybernetics
Report/Patent Number
AIAA PAPER 90-3444
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference