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Study on Active Structural Acoustic Control in The Independent Modal Space

机译:独立模态空间中主动结构声控制的研究

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A theoretically and numerically investigation of active control ofstructural sound radiation in the independent modal space has beenperformed. The one by one corresponding relationship betweenstructural mode and sound radiation mode is been proved. Thestructure-acoustic coupling control equation is deduced in thedecoupling independent modal space. According to H_∞ control,numerical simulation of active control of sound radiation fromplate is realized by FEM/BEM method based on structure-acousticcoupling control equation. The structure-acoustic coupling controlmethod put forward in this article gives better control results ofstructural vibration and sound radiation compared with the controlresults obtained from independent modal space method(IMSC).
机译:对独立模态空间中结构声辐射的主动控制进行了理论和数值研究。证明了结构模式与声辐射模式之间一一对应的关系。在独立的模态空间解耦中推导了结构声耦合控制方程。根据H_∞控制,基于结构-声耦合控制方程的FEM / BEM方法实现了板声辐射主动控制的数值模拟。与独立模态空间法(IMSC)获得的控制结果相比,本文提出的结构声耦合控制方法具有更好的结构振动和声辐射控制效果。

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