摘要
把表面细分技术应用于求解边界积分方程,既能把CAD模型直接用于边界元分析,又能精确描述复杂的边界几何形状,实现网格自动加密和形函数自动升阶,满足误差要求。把它应用于简单的二维声辐射和声散射,结果表明对提高边界元方法的计算精度是有效的。
The subdivision surface technique, a new method in the Computer Graphics, has been paid more attention because of its exactness in depicting models. In this paper we apply the technique to the boundary element method and find that it can make the problem more easy to be computed, and the solution is more accurate. The new approach offers a method to use the CAD models straightforward to the boundary element method.
出处
《应用声学》
CSCD
北大核心
2006年第1期13-18,共6页
Journal of Applied Acoustics
基金
国家自然科学基金资助项目(10274059)
关键词
表面细分
细分矩阵
边界积分方程
声辐射
声散射
Subdivision surface, Refinement matrix, Boundary element method, Radiation, Scattering
