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对于具有两个弹性板的复杂封闭空间，建立了在外声源和外力源以及控制电压共同作用下有源消声系统建模的新方法。长方体封闭空间耦合系数数值计算的结果，验证了这一方法的正确性。采用全局控制和局部控制方案，进行了计算机仿真，取得了良好的消声效果。该方法拓宽了利用结构声辐射进行有源消声的范围，可适用于任意形状的封闭空间。
For the complex enclosed space with two elastic plates, a new method of modeling the active noise reduction system under the combined action of external sound source, external force source and control voltage is established. The results of numerical calculation of the coupling coefficient of the cuboid closed space verify the correctness of this method. Using global control and local control scheme, the computer simulation was carried out, and a good noise reduction effect was achieved. The method broadens the scope of active sound attenuation by structural acoustic radiation and can be applied to an enclosed space of any shape.