Abstract
Considerable attention has been devoted to active vibration control using intelligent materials as PZT 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: optimal PID control, strain rate feedback control (SRF), and positive position feedback control (PPF) are investigated and implemented using xPC Target real-time system. Experimental results demonstrate that the SRF and PPF controls have better performance in suppressing the vibration of cantilever steel beam than the optimal PID control.
Highlights
Actuators from piezoceramic materials have wide application ranging from active vibration control to nanoscale positioning tasks
This paper presents results on active control schemes for vibration suppression of flexible steel cantilever beam with bonded piezoelectric actuators
The steel beam is cantilevered at one end and PZT actuators are bonded to the surface of beam
Summary
Actuators from piezoceramic materials have wide application ranging from active vibration control to nanoscale positioning tasks. This is due to their high-frequency response behavior and essentially infinite resolution. Fanson and Caughey 3 carried out feedback control to suppress structural vibration with segmented piezoelectric actuators and sensors. Active vibration suppression of a flexible steel cantilever beam using smart materials is proposed in. The dynamic modeling and the active vibration control scheme SRF and PPF control for the vibration suppression of steel cantilever beam are investigated and compared. The contribution of this paper is that the vibration control of flexible structure using PPF and SRF are implemented with X-PC Target real-time control system.
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