The paper deals with the control design of a fault-tolerant actuator for fly-by-wire helicopters, capable of compensating both failure effects and jump resonance phenomena. The study, focused on the performance analysis in case of servovalve coil faults, points out that a standard reconfiguration based on demand amplification can imply jump resonances. The proposed strategy eliminates the problem by correlating the jump frequency to the system characteristics, and by inserting a dynamic notch filter in the actuator closed-loop control.

Dynamic notch filtering control for fault-tolerant actuators of fly-by-wire helicopters

DI RITO, GIANPIETRO
Primo
;
GALATOLO, ROBERTO;DENTI, EUGENIO;SCHETTINI, FRANCESCO
2014-01-01

Abstract

The paper deals with the control design of a fault-tolerant actuator for fly-by-wire helicopters, capable of compensating both failure effects and jump resonance phenomena. The study, focused on the performance analysis in case of servovalve coil faults, points out that a standard reconfiguration based on demand amplification can imply jump resonances. The proposed strategy eliminates the problem by correlating the jump frequency to the system characteristics, and by inserting a dynamic notch filter in the actuator closed-loop control.
2014
3932182804
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/553475
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