摘要
有限元法与边界元法的耦合是一种有实用价值的数值解法。本文提出采用有限-边界元耦合迭代法对体系作动态响应分析。此法将求解区域剖分为二,分别采用有限元法和边界元法,在其交界面上通过迭代法满足界面条件。然后利用Wilson-θ法求解该动力微分方程。此法兼有有限元法和边界元法的特色,因此具有计算效率较高、输入数据少、节省计算机内存等优点,且适宜在微机上应用。
Describes a hybrid method, mhich combines a finite element method (FEM) and a boundary element method (BEM) for dynamic response analysis of structure. The structure may be dissected into finite element and boundary element respectively. In the interface of the regions, the compatibility of motions and the equilibrium of the forces are considered. Then the dynamic equations are solved by the Wilson-θ method. Since this method possesses the advantages of both FEM and BEM, it makes the computation quite accurate and fast. It is particularly suitable for microcomputer.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1989年第4期51-56,共6页
Journal of Southwest Jiaotong University
关键词
动态响应
有限元
边界元
耦合
微机
dynamic response
coupling
finite element method
boundary element method
