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Analysis of airframe/engine interactions in integrated flight and propulsion controlAn analysis framework for the assessment of dynamic cross-coupling between airframe and engine systems from the perspective of integrated flight/propulsion control is presented. This analysis involves to determining the significance of the interactions with respect to deterioration in stability robustness and performance, as well as critical frequency ranges where problems may occur due to these interactions. The analysis illustrated here investigates both the airframe's effects on the engine control loops and the engine's effects on the airframe control loops in two case studies. The second case study involves a multi-input/multi-output analysis of the airframe. Sensitivity studies are performed on critical interactions to examine the degradations in the system's stability robustness and performance. Magnitudes of the interactions required to cause instabilities, as well as the frequencies at which the instabilities occur are recorded. Finally, the analysis framework is expanded to include control laws which contain cross-feeds between the airframe and engine systems.
Document ID
19910065117
Document Type
Conference Paper
Authors
Schierman, John D. (Arizona State Univ. Tempe, AZ, United States)
Schmidt, David K. (Arizona State University Tempe, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Subject Category
AIRCRAFT STABILITY AND CONTROL
Report/Patent Number
AIAA PAPER 91-2794
Meeting Information
AIAA Guidance, Navigation and Control Conference(New Orleans, LA)
Funding Number(s)
CONTRACT_GRANT: NAG3-998
Distribution Limits
Public
Copyright
Other