Affiliation:
1. Mechanical Systems Laboratory Department of Mechanical and Aerospace Engineering State University of New York at Buffalo Buffalo, New York 14260
Abstract
The slewing control of an active flexible structure is considered by examin ing the equations of motion of an integrated actuator/structure system containing both the actuator and structure dynamics. These equations are derived using a Hamiltonian ap proach. The system under consideration is a slewing flexible structure, a thin aluminum beam, torque driven by an armature controlled DC electric motor and actuated by a piece- wise distributed piezoceramic actuator. An improvement in performance is gained by 1) including the effects of motor actuator and beam dynamic interaction and 2) using a piezo electric device, layered on the structure, for direct vibration suppression of the structural dynamics. A comparison is made using simulations, to point out the advantages of slewing an active structure versus slewing a passive structure. This presents a multi input slewing control problem which is implemented using a standard linear quadratic regulator control design.
Subject
Mechanical Engineering,General Materials Science
Cited by
14 articles.
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