Active vibration control of a laminated composite plate with PZT actuators and sensors: an experimental study

S. Raja; Prasanta K. Sinha; Gangan Prathap

doi:10.1117/12.514665

14 October 2003 Active vibration control of a laminated composite plate with PZT actuators and sensors: an experimental study

S. Raja, Prasanta K. Sinha, Gangan Prathap

Author Affiliations +

Proceedings Volume 5062, Smart Materials, Structures, and Systems; (2003) https://doi.org/10.1117/12.514665
Event: Smart Materials, Structures, and Systems, 2002, Bangalore, India

Abstract

We have used a modal control approach to suppress the vibration amplitude of a laminated composite plate. The monolithic piezo crystals are employed as distributed actuators, sensors and are surface bonded at 0°, 45° positions on the plate. Optimal control gain estimated off-line is converted as feedback voltage and is implemented in an analog control system. The piezo actuators placed at 45° position are found efficient in controlling the torsion mode, however 0° crystals are observed effective in bending modes control. The displacement and velocity of the system are used in the closed loop feedback control as actuation signals. The displacement control is observed to be comparatively better in controlling all the three elastic modes than velocity control.

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S. Raja, Prasanta K. Sinha, and Gangan Prathap "Active vibration control of a laminated composite plate with PZT actuators and sensors: an experimental study", Proc. SPIE 5062, Smart Materials, Structures, and Systems, (14 October 2003); https://doi.org/10.1117/12.514665

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