压电分流阻尼电路设计的极点配置方法
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国家自然基金资助项目(11464031,51265037);航空科学基金资助项目(2015ZA56002);江西省高校科技落地计划基金资助项目(KJLD12075);江西省研究生创新专项基金资助项目(YC2016-S336)

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Pole Placement Method for Piezoelectric Shunt Damping Circuit Design
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    摘要:

    针对作为被动控制的压电分流阻尼电路提出极点配置方法。对压电分流阻尼系统建立机电耦合方程,考虑模态位移为输出量,得到系统极点的特征方程。运用主导极点与虚轴的距离对系统动态响应衰减有着关键作用这一特性,确立优化目标,然后求解出压电分流阻尼电路参数的最优值。最后通过数值仿真对所设计的优化方法进行检验,并与传统传递函数优化法进行比较。仿真结果表明,运用极点配置方法设计的压电分流电路有着良好的抑制振动的效果,这验证了极点配置方法的有效性。

    Abstract:

    A pole assignment method is proposed for piezoelectric shunt damping circuits as passive control. An electromechanical coupling equation for the piezoelectric shunt damping system is established. Considering the modal displacement as the output, the characteristic equation of the system pole is obtained. The optimized object is determined by making use of the characteristic that the distance between the dominant pole and the imaginary axis plays a key role in the attenuation of the dynamic response of the system. And then the optimal value of the parameters of the piezoelectric shunt damping circuit is solved. Finally, the optimal method is tested by numerical simulation, and compared with the conventional transfer function optimization method. The simulation results show that the piezoelectric shunt circuit designed by the pole placement method has a good effect of suppressing the vibration. This verifies the validity of the pole placement method.

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柳维玮,毛崎波.压电分流阻尼电路设计的极点配置方法[J].压电与声光,2018,40(1):144-148. LIU Weiwei, MAO Qibo. Pole Placement Method for Piezoelectric Shunt Damping Circuit Design[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2018-02-08
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