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敷设阻尼层的有限长加筋板声振性能研究

姚熊亮 王献忠 庞福振 康蓬辉

华中科技大学学报:自然科学版2012,Vol.40Issue(7):119-123,5.
华中科技大学学报:自然科学版2012,Vol.40Issue(7):119-123,5.

敷设阻尼层的有限长加筋板声振性能研究

Analysis of vibration and sound radiation from finite stiffened plates covered with damping layer

姚熊亮 1王献忠 1庞福振 1康蓬辉2

作者信息

  • 1. 哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001
  • 2. 中国船舶重工集团公司第725研究所,河南洛阳471039
  • 折叠

摘要

Abstract

The vibration and sound radiation in air and water of finite stiffened plate under single frequency excitation and white noise excitation were analyzed respectively by modal experience, and the corresponding numerical solution for the model was presented. It shows that the peak value of vibration velocity moves left when coated with damping layer. The effect of damping layer on sound reduction and vibration rejection was proved to be well in general, but not so obviously at low frequency narrow, even disappear at some frequency point. A numerical analysis was also developed to prove a good effect of damping layer on sound reduction and vibration rejection.

关键词

声辐射/加筋板/阻尼层/模型试验/振动

Key words

sound radiation/stiffened plate/damping layer/model experience/vibration

引用本文复制引用

姚熊亮,王献忠,庞福振,康蓬辉..敷设阻尼层的有限长加筋板声振性能研究[J].华中科技大学学报:自然科学版,2012,40(7):119-123,5.

基金项目

国防基础科研基金资助项目 ()

中央高校基础科研基金资助项目(HEUCFlloll9). ()

华中科技大学学报:自然科学版

OA北大核心CSCDCSTPCD

1671-4512

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