NDLI: Compensation of jammed control surface of large transport aircraft by control reconfiguration

Content Provider	IEEE Xplore Digital Library
Author	Ahmad, H. Young, T.M. Toal, D. Omerdic, E.
Copyright Year	2007
Description	Author affiliation: Univ. of Limerick, Limerick (Ahmad, H.; Young, T.M.)
Abstract	This paper addresses the control allocation to several aircraft flight controls to produce required body axis angular accelerations. Two methods of control law design are used to produce the virtual control effort signals, which are then distributed by solving sequential least squares problem using active set method to the flight control surfaces to generate this effort. Two cases are described: in the first case the control law and allocation for the healthy aircraft is implemented, and in the second case, jamming of one control surface is introduced at time zero. In this case it was shown that how controller and allocation compensate for this failure without changing the control law. To implement this system it was assumed that there is a good fault identification system onboard. Normally aircraft are over-actuated and in the case of a control failure this over actuation is more pronounced due to coupling of aircraft dynamics. The problem of control allocation presented here is a convex problem so there is always a unique solution.
Starting Page	1
Ending Page	6
File Size	199294
Page Count	6
File Format	PDF
ISBN	9781424412815
DOI	10.1109/MED.2007.4433782
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-27
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Actuators Redundancy Automatic control Aerodynamics Control systems Military aircraft Jamming Aircraft propulsion Force control Aerospace control
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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