DocumentCode
767277
Title
An analysis of the destabilizing effect of daisy chained rate-limited actuators
Author
Berg, Jordan M. ; Hammett, Kelly D. ; Schwartz, Carla A. ; Banda, Siva S.
Author_Institution
Wright Lab., Wright-Patterson AFB, OH, USA
Volume
4
Issue
2
fYear
1996
fDate
3/1/1996 12:00:00 AM
Firstpage
171
Lastpage
176
Abstract
The response of a rate-limited actuator will lag behind a rapidly changing command. This lag may destabilize the closed-loop system. When multiple actuators are arranged in a daisy chain this effect can be significantly worse. The cost of daisy chaining, in terms of lost stability margin, is estimated analytically and numerically. A comparison of a simple daisy chain with a simple “cooperative” control selector shows that the daisy chain may cause as much as 30° of additional phase lag
Keywords
actuators; closed loop systems; delays; stability; closed-loop system; cooperative control selector; daisy chained rate-limited actuators; destabilizing effect; multiple actuators; stability margin; Actuators; Aerodynamics; Aerospace control; Aircraft; Costs; Delay effects; Elevators; Nonlinear dynamical systems; Stability analysis; Torque;
fLanguage
English
Journal_Title
Control Systems Technology, IEEE Transactions on
Publisher
ieee
ISSN
1063-6536
Type
jour
DOI
10.1109/87.486343
Filename
486343
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