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Simulation and experimental study on vibration and sound radiation control with piezoelectric actuators

机译：压电致动器振动和声辐射控制的仿真和实验研究

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摘要

FEM/BEM is adopted to model the interaction between the fluid and structures. In the modeling, modal truncation and inertial coupling are applied to sufficiently reduce the coupled model order. This approach is adopted for the purpose of constructing a modal model in the time domain. Active vibration control is realized with piezoelectric actuators and an adaptive method. In the control, the summation of vibration responses is used as the control error since the integral of acceleration on the plate surface is approximately proportional to the far field sound pressure. A rigidly baffled plate connected with a mass through one piezoelectric actuator is simulated at first. In the experiment, the plate is excited by a rotating eccentric mass and controlled with four piezoelectric actuators. The results have shown that active vibration control with the piezoelectric actuators can lead to a noticeable attenuation in sound pressure.
机译：采用有限元/边界元法对流体与结构之间的相互作用进行建模。在建模中，采用模态截断和惯性耦合来充分降低耦合模型的阶数。采用这种方法是为了在时域中构建模态模型。主动振动控制通过压电执行器和一种自适应方法来实现。在控制中，将振动响应的总和用作控制误差，因为板表面上的加速度积分与远场声压大致成比例。首先模拟通过一个压电致动器与质量块连接的刚性挡板。在实验中，板由旋转的偏心块激励，并由四个压电致动器控制。结果表明，利用压电致动器进行主动振动控制可导致声压显着衰减。

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  • 来源
    《Shock and vibration》 |2011年第2期|p.343-354|共12页
  • 作者

    Zhiyi Zhang; Yong Chen; Hongguang Li; Hongxing Hua;

  • 作者单位

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai, 200240, P.R.China;

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai, 200240, P.R.China;

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai, 200240, P.R.China;

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai, 200240, P.R.China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fluid-structure interaction; piezoelectric actuator; adaptive vibration control; sound radiation;

    机译：流固耦合压电执行器自适应振动控制;声辐射;

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