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《Piezoelectrics & Acoustooptics》 2003-02
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Active Structural Acoustic Control Using Piezoelectric Sensors

MAO Qibo,XU BolingModern Acoustics,Nanjing University,Nanjing 210093,China)  
Based on the radiation modes,it is presented a piezoelectric sensor strategy with an example of simply supported rectangular panel.Radiation mode sensor is created from an array of rectangular segments of piezoelectric film.The outputs of the segments are multiplied by appropriate gains so that the weighted combinations of the outputs approximate the adjoint coefficient of the radiation modes.It is shown that this sensor strategy is independent of the type,magnitude and position of the external excitation.Optimal control simulations are performed to validate this sensor strategy using PZT actuators as control forces.
【Fund】: 江苏省汽车工程重点实验室开放课题基金(KJS01088):
【CateGory Index】: TB535
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