A lattice gas method is applied to simulate the attenuation of sound oscillation.

采用格子气数值方法模拟了共振腔中气体声振荡衰减过程。

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The flow induced oscillation in a cavity exposed to external high speed flow and its suppression by means of sound excitation at the leading edge of the cavity are experimentally studied.

实验研究了矩形空腔在外部高速气流作用下诱导的空腔内流动振荡问题，以及从空腔前缘加入纯音声激励以抑制空腔内流动振荡的技术。

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Through the border conditions of damping layer combined with the shell the coupled oscillation equation was solve, and radiation sound field expression was shown using the shell displacements.

通过阻尼层与壳体作用的边界条件求解流固耦合振动方程，解得辐射声场的表达式。

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