文章摘要
汪鸿振,郭芃.用边界元法计算有反射面的结构体声辐射[J].声学技术,1999,(4):149~151
用边界元法计算有反射面的结构体声辐射
Calculation about structural sound radiation on a reflecting plane by BEM
投稿时间:1999-03-12  修订日期:1999-05-03
DOI:
中文关键词: 反射面  结构声辐射
英文关键词: refiecting plane  structural sound radiation
基金项目:
作者单位
汪鸿振 上海交通大学振动、冲击、噪声国家重点实验室, 上海 200030 
郭芃 上海交通大学振动、冲击、噪声国家重点实验室, 上海 200030 
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中文摘要:
      本文在采用边界元方法计算无限域中任意形状结构声辐射的基础上,通过重新推导适用于半无限域问题的Green函数,对存在反射面时结构的声辐射情况进行了研究并编制了相应的计算机程序;在此基础上,对放置在刚性反射面上的均匀脉动球的辐射声场进行了计算,与相应的解析解进行了比较并对计算误差作了分析。
英文摘要:
      In this paper,the structural sound radiation on a reflecting plane is studied by rededucing the Green Function applicable to the problem on semi-infinite region,based on the calculation about the sound radiation in an infinite region of an arbitrary shaped structure by Boundary Element Method And the software has been worked out. Then the sound radiaton of a homogeneous pulsating sphere on a stiff reflecting plane is calculated by using the above software.Further,the result is compared with the analytical one and the calculation error is analyzed.
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