噪声与振动控制

›› 2011, Vol. 31 ›› Issue (5): 5-8.DOI: 10.3969/j.issn.1006-1355-2011.05.002

• 2.振动理论与数值解法 • 上一篇    下一篇

改进声辐射模态模型求解具有位移自由度板声功率灵敏度

吴锦武,谭斐   

  1. （ 南昌航空大学 飞行器工程学院， 南昌 330063 ）
  • 收稿日期:2010-12-22 修回日期:2011-03-17 出版日期:2011-10-18 发布日期:2011-10-18
  • 通讯作者: 吴锦武

Analysis of Sound Power Sensitivity of Plates with Displacement Degrees of Freedom Using Improved Acoustic Radiation Modes

WU Jin-wu ,TAN Fei   

  1. ( School of Aircraft Engineering, Nanchang Aviation University, Nanchang 330063, China ）
  • Received:2010-12-22 Revised:2011-03-17 Online:2011-10-18 Published:2011-10-18
  • Contact: WU Jin-wu

摘要： 利用改进的声辐射模态模型处理声辐射,利用有限元振动模型处理结构振动,提出一种新的研究具有位移自由度板的声辐射灵敏度求解方法。以四边简支的具有位移自由度板作为数值算例，结果表明该方法是可行的。

关键词: 振动与波, 灵敏度分析, 声辐射模态, 具有位移自由度板

Abstract: A new method to solve the sound power sensitivity of plates with displacement degrees of freedom is proposed by using the improved acoustic radiation modes model to deal with acoustic radiation and using FEM vibration model for vibration analysis to trcat the structural vibration .Taking a simply supported plate with displacement degrees of freedom as a simulation example, the simulation results show the validity of the presented method.

Key words: vibration and wave, sensitivity analysis, acoustic radiation modes, plates with displacement degrees of freedom

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