有阻尼负载时圆柱壳的声传递特性分析

姚熊亮 王献忠 孙龙泉

振动与冲击 ›› 2012, Vol. 31 ›› Issue (15) : 116-120.

PDF(1266 KB)
PDF(1266 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (15) : 116-120.
论文

有阻尼负载时圆柱壳的声传递特性分析

  • 姚熊亮 王献忠 孙龙泉
作者信息 +

Acoustic transmission analysis of cylindrical shell with viscoelastic layer coating

  • YAO Xiong-liang, WANG Xian-zhong, SUN Long-quan
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摘要

摘要 本文分析研究有阻尼负载圆柱壳的声波透射问题,从经典薄壳理论出发,给出有阻尼负载的圆柱壳振动微分方程,结合均匀流场中的波动方程,利用流-固耦合边界条件,给出了声波传递损失的公式,并计算了相应的算例,研究了有阻尼负载圆柱壳中的声波传递特性。分析了声波入射角度、阻尼厚度、壳体厚度等对声波传递损失的影响,得到了有意义的结论,旨在为工程设计提供参考。

Abstract

Abstract: Based on classical thin-shell theory, the differential equations of vibrations of cylindrical shell with free layer damping were received. The sound transmission loss was derived by conjoining the sound wave equation for the fluid field, and boundary conditions at the fluid-structure interfaces. A corresponding numerical example is given in the paper. And the characteristic of sound transmission of cylindrical shell with viscoelastic layer coating was analyzed. Also the effects of incident wave angles, damping thickness, cylindrical shell radius and thickness on the curves were shown.

关键词

阻尼负载 圆柱壳 传递损失 波

Key words

Key word: damping layer load / cylindrical shell / transmission loss / wave

引用本文

导出引用
姚熊亮 王献忠 孙龙泉. 有阻尼负载时圆柱壳的声传递特性分析[J]. 振动与冲击, 2012, 31(15): 116-120
YAO Xiong-liang;WANG Xian-zhong;SUN Long-quan. Acoustic transmission analysis of cylindrical shell with viscoelastic layer coating[J]. Journal of Vibration and Shock, 2012, 31(15): 116-120

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