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HU Hong
SHI Hongyan
Department of
Mechanical Engineering
and Automation,
Harbin Institute of Technology Shenzhen Graduate School,
Shenzhen 518055, China
BEN MRAD Ridha
Department of Mechanical and
Industrial Engineering,
University of Toronto,
Toronto M5S 3G8, Canada
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ACTIVE VIBRATION SUPPRESSION
VIA LINEARIZING HYSTERESIS OF
PIEZOCERAMIC ACTUATORS
Abstract:
A novel active vibration control technique on the basis of linearized piezoelectric actuators is presented. An experimental apparatus consisting of a cantilever beam to which are attached strain patches and piezoceramic actuators to be used for active vibration suppression is described. A dy-namical model of the cantilever beam using Lagrange’s equation and two coordinate systems are presented. Based on the Lyapunov’s direct method, an active vibration controller with hysteresis compensation is designed. The controller is designed so that it guarantees the global stability of the overall system. The controller developed is assessed experimentally.
Key words:
Active vibration control Piezoceramic actuator Hysteresis |