SEMI-PASSIVE ELECTROMAGNETIC SWITCHING SHUNT DAMPER FOR VIBRATION SUPPRESSION OF FLEXIBLE STRUCTURE

来源 :The Third International Conference on Dynamics,Vibration and | 被引量 : 0次 | 上传用户:longyouxi
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  Piezoelectric shunt damping, which can be classified into a semi-active control method without the power amplifier and the signal processing unit, is a most popular technique for minimizing the vibration of the smart flexible structures.The possibility to dissipate the mechanical energy with a piezoelectric material shunted with passive electrical circuits is investigated by Hagood et al[1].Applied switching R shunts, where a single resistor is either switched to, or disconnected from the piezoelectric transducer resulting in changes in patch stiffness[2].With a heuristic switching law, they were able to damp vibration of a beam structure.Later, switching R-L shunts have been proposed [3, 4, 5].
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