Numerical results showed that if the shell was partially covered wi th a damping layer, its sound radiation would be greater than that of the ba re shell due to leak effect.
结果表明圆柱壳部分覆盖阻尼层后,由于声漏效应,壳体声辐射与光壳相比会增强。
Flange surface roughness of the influence, especially sealing effect when using the soft cushion, seal surface coarse degree value big are caused by the leak is one of the main reasons why.
法兰表面粗糙度对密封效果影响很大,特别是当采用非软质垫片时,密封表面粗糙的度值大是造成泄露的主要原因之一。
We measure electromagnetic Leak amount of TV satellite ground station, define its effect degree to ambience, so to provide reference idea for environmental protection management.
通过对电视台卫星地面站电磁泄漏的测量,明确其对周围环境可能造成影响的程度,为环境保护管理提供参考性意见。
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