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Study on Active Structural Acoustic Control in The Independent Modal Space

机译:独立模态空间中有源结构声学控制研究

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A theoretically and numerically investigation of active control of structural sound radiation in the independent modal space has been performed. The one by one corresponding relationship between structural mode and sound radiation mode is been proved. The structure-acoustic coupling control equation is deduced in the decoupling independent modal space. According to H_∞ control, numerical simulation of active control of sound radiation from plate is realized by FEM/BEM method based on structure-acoustic coupling control equation. The structure-acoustic coupling control method put forward in this article gives better control results of structural vibration and sound radiation compared with the control results obtained from independent modal space method(IMSC).
机译:已经进行了独立模态空间中结构声辐射的主动控制的理论上和数值研究。已经证明了结构模式和声辐射模式之间的相应关系的一个。在去耦独立模态空间中推导了结构 - 声学耦合控制方程。根据H_∞控制,通过基于结构 - 声耦合控制方程的FEM / BEM方法实现了从板的声辐射的主动控制的数值模拟。与从独立模态空间方法(IMSC)获得的控制结果相比,本文提出的结构 - 声学耦合控制方法提供了较好的控制结果,与从独立模态空间方法(IMSC)获得的控制结果相比。

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