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Optimal vibration control of a plate using optical fiber sensor and PZT actuator

机译:使用光纤传感器和PZT执行器对板进行最佳振动控制

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摘要

Vibration control of a plate using an optical fiber sensor and a PZT actuator is considered in this study. An aluminum plate with attached extrinsic Fabry-Perot interferometer (EFPI) and PZT actuator is prepared for experimental investigation. The vibration level of EFPI that can represent the mechanical strain without severe distortion is validated by a forced vibration experiment. A linear time-invariant system model is constructed based on the experimentally obtained frequency responses, and an optimal controller is designed for the multi-modal vibration suppression. Control performance is presented in frequency and time domains. It is found that the vibration level of the first three modes can be greatly reduced. The effect of low-pass filtering used to eliminate high frequency noise on the stability and control performance is also considered.
机译:在这项研究中考虑了使用光纤传感器和PZT执行器对板进行振动控制。准备一个带有外部法布里-珀罗干涉仪(EFPI)和PZT执行器的铝板用于实验研究。 EFPI的振动水平可以表示机械应变而没有严重变形,这是通过强制振动实验验证的。基于实验获得的频率响应,构建了线性时不变系统模型,并设计了多模态振动抑制的最优控制器。控制性能以频域和时域表示。已经发现,前三种模式的振动水平可以大大降低。还考虑了用于消除高频噪声的低通滤波对稳定性和控制性能的影响。

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