Feedback control of wave propagation in a rectangular panel, part 2: Experimental realization using clustered velocity and displacement feedback
Feedback control of wave propagation in a rectangular panel, part 2: Experimental realization using clustered velocity and displacement feedback
复制标题
矩形面板中波传播的反馈控制，第 2 部分：使用集群速度和位移反馈的实验实现
DOI：
10.1016/j.ymssp.2012.06.013
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发表时间：
2012
影响因子：
8.4
通讯作者：
Nobuo Tanaka and Simon G. Hill
中科院分区：
文献类型：
--
作者：
Hiroyuki Iwamoto;Nobuo Tanaka and Simon G. Hill
研究了弯曲波在矩形板中传播的反馈控制。本文（第二部分）的目的是实验实现在两个系列论文的第一部分中提出的反馈波控制方法。首先，基于传感器和执行器的配置，提出了聚类速度和位移反馈（C-VDFB）方法。接下来，将C-VDFB与第1部分提出的有源波控制联系起来，明确了有源波控制系统在有限范围内可以实现。然后，从数值仿真的角度，阐明了C-VDFB的反馈增益特性及其控制性能。结果表明，C-VDFB能够使目标频率处的振动模式失活。进一步说明，即使在非目标频率下，该方法也能充分降低结构振动。最后，进行了聚类直接速度和位移反馈控制反射波吸收的实验研究。实验结果与仿真结果吻合较好。
This study presents the feedback control of flexural waves propagating in a rectangular panel. The objective of this paper (part 2) is to experimentally implement the feedback wave control method which was proposed in part 1 of the two series papers. Firstly, based on the collocation of sensors and actuators, clustered velocity and displacement feedback (C-VDFB) is newly proposed. Next, linking C-VDFB with the active wave control proposed in part 1, it is clarified that the active wave control system can be realized to a limited extent. Then, from a viewpoint of numerical simulations, the characteristics of the feedback gains of C-VDFB and its control performance are clarified. It is shown that C-VDFB enables the inactivation of vibration modes at the target frequencies. Furthermore, it is clarified that even at the non-target frequencies, the proposed method sufficiently reduces the structural vibration. Finally, experiments on the reflected wave absorbing control using clustered direct velocity and displacement feedback are carried out. The experimental results show good agreement with those obtained in the simulation.