基于有限元边界元方法的薄板声辐射分析  

Sound Radiation Analysis of Thin Plate Based on FEM and BEM Method

作　　者：赵志高[1] 黄其柏[1] 何锃[1] 

机构地区：[1]华中科技大学机械科学与工程学院,武汉430074

出　　处：《噪声与振动控制》2008年第1期39-43,共5页Noise and Vibration Control

基　　金：中国博士后科学基金(第41批);华中科技大学校博士后科学基金

摘　　要：分析了薄板结构的声辐射功率与其厚度及其激振频率的关系,从理论上指出了激振频与厚度对薄板结构声辐射的影响,分析当激励频率与结构的固有频率十分接近时,薄板的声辐射特性,同时分析了方形结构与条形结构声辐射的差异,从而为薄板结构的在工程中的低噪声设计提供参考。The relationship among the acoustical power and thickness and the stimulated frequency of thin plate is analyzed, and the influence from thickness and frequency is also introduced. ＂The result presents the character of thin plate acoustical radiation when the stimulated frequency approaches the natural frequency and radiation difference of the square plate and the rectangular plate is also given. The analytical results present the guide for low noise design of thin plate in engineering.

关 键 词：声学 声辐射 薄板 声功率 

分 类 号：U463[机械工程—车辆工程]