TY - GEN
T1 - Compensation of jammed control surface of large transport aircraft by control reconfiguration
AU - Ahmad, Hammad
AU - Young, Trevor M.
AU - Toal, Daniel
AU - Omerdic, Edin
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=50249131994&partnerID=8YFLogxK
U2 - 10.1109/MED.2007.4433782
DO - 10.1109/MED.2007.4433782
M3 - Conference contribution
AN - SCOPUS:50249131994
SN - 142441282X
SN - 9781424412822
T3 - 2007 Mediterranean Conference on Control and Automation, MED
BT - 2007 Mediterranean Conference on Control and Automation, MED
T2 - 2007 Mediterranean Conference on Control and Automation, MED
Y2 - 27 July 2007 through 29 July 2007
ER -