Optimal Research of Actuator Placement for Piezoelectric Smart Structure

Wei Yuan Wang; Kai Xue; Dong Yan Shi

doi:10.4028/www.scientific.net/KEM.419-420.173

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Structural Design and the State of Motion Analyzes for Multi-Degree-of-Freedom Electro-Hydraulic Mix-Drive Motion Simulator
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Optimal Research of Actuator Placement for Piezoelectric Smart Structure
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The FUZZY-D-P-GA of Navigation Performance and Structure Characteristic of Ships
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A Study of LED C-Like Linear Tube by Micromachining Technique for LCD Backlight Applications
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Optimal Research of Actuator Placement for Piezoelectric Smart Structure

Abstract:

The purpose of this paper is to investigate the optimal placement of piezoelectric actuator for active vibration control of smart structure. The structures can be described in the modal space based on the independent modal space control method and dynamic equations derived from finite element model. The modal damping ratios are derived from modal equations and an optimal target is given by maximizing the modal damping ratios. Accumulation method is adopted to the optimization calculation. Simulations are carried out for active vibration control of a conical shell with distributed piezoelectric actuators. Control effects proved the validity of the optimal method above by compared with the non-optimal results. The optimal method in this paper gives a useful guide for quantity optimization of actuators to piezoelectric structures.