Vol. 89, Issue 3, March 2008, pp.52-60

Active Vibration Control of a Flexible Structure Using Piezoceramic Actuators

J. Fei

Department of Mechanical Engineering, The University of Akron, Akron, OH, USA 44325

E-mail: jtfei@yahoo.com

Received: 1 February 2008   /Accepted: 17 March 2008   /Published: 24 March 2008

Abstract: Considerable attention has been devoted recently to active vibration control using intelligent materials as actuators. This paper presents results on active control schemes for vibration suppression of flexible steel cantilever beam with bonded piezoelectric actuators. The PZT patches are surface bonded near the fixed end of flexible steel cantilever beam. The dynamic model of the flexible steel cantilever beam is derived. Active vibration control methods, strain rate feedback control (SRF), positive position feedback control (PPF) are investigated and implemented using xPC Target real-time system. Experimental results demonstrate that the SRF control and PPF control achieve effective vibration suppression results of steel cantilever beam.

Keywords: Vibration Control, Strain Rate Feedback Control, Positive Position Feedback Control, Piezoelectric  Actuator

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