摘要
针对工程广泛应用的圆柱壳结构,首次运用解析法探讨了边界元软件Sysnoise两种加载方式-基于单元(Element)加载和基于节点(Node)加载-对声辐射影响,以及两种加载方式在网格加密情况下的收敛性问题。得到一些对工程计算的有益结论:①基于单元(Element)加载方式得到的结果要好于基于节点(Node)加载方式;②基于单元(El-ement)加载方式网格加密时收敛到解析解,而基于节点(Node)加载方式网格加密后,不一定得到收敛结果。
The influence of two loading forms of boundary element method （ BEM ） software Sysnoise including element-based and node-based on sound radiation, and the convergence of two loading forms when refining the mesh were at first time investigated with analytical solution for a cylindrical shell. And it was obtained that the result based on loading form of element is better than that based on loading form of node; the result based on loading form of element when refining the mesh is convergent while that based on loading form of node when refining the mesh is uncertain.
出处
《振动与冲击》
EI
CSCD
北大核心
2013年第4期1-5,38,共6页
Journal of Vibration and Shock
关键词
圆柱壳
声辐射
收敛性
加载方式
边界元
cylindrical shell
sound radiation
convergence
loading form
boundary element method （BEM）
