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Research on active-passive hybrid vibration control using negative capacitance branch circuits

机译:负电容分支电路的主动-被动混合振动控制研究

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In this paper, an active-passive hybrid method using negative capacitance branch circuits is used to suppress structural vibration. When a negative capacitance is connected to a shunt circuit of a piezoelectric element, it can increase the electromechanical coupling coefficient of the system and consequently improve the damping effect of the passive control as well as raise active control voltage. The system model is established and its characteristics such as the dependence of the vibration amplitude on the negative capacitance are investigated. Experimentations are carried. Experimental results show that this method is able to suppress structural vibration effectively and has better control effect than the individual active control or passive control method.
机译:在本文中,使用负电容分支电路的主动-被动混合方法用于抑制结构振动。当负电容连接到压电元件的并联电路时,它可以增加系统的机电耦合系数,从而提高无源控制的阻尼效果并提高有源控制电压。建立了系统模型,并研究了其特性,如振动幅度对负电容的依赖性。进行实验。实验结果表明,与单独的主动控制或被动控制方法相比,该方法能够有效地抑制结构振动,并具有更好的控制效果。

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