The study indicates that applying constrained damping to thin-walled components such as valve cover and timing gear cover and adopting compound structure can effectively suppress high frequency radiated noise of these components;
研究中发现,对气门罩盖和齿轮室盖薄壁部件处施加约束阻尼,采用复合结构,可以有效抑制发声部件的高频段辐射噪声;
active control of structure noise radiated from vibrating plate
振动板辐射噪声的结构主动控制
The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure.
利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。
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