摘要
本文详细的论证了固定界面动态子结构方法与有限单元方法的内在联系,并给出了这两种方法部分参数之间的类比关系,同时证明了只有当子结构趋向很小时,固定界面动态子结构方法才近拟于有限单元方法这一本质.
This paper discusses in detail the internal relationship between the fixedface dynamical substructure method and the finite element method and gives an analagy relation of parts parameters in these two methods and also proves the essence of the fixedface dynamical substrucure method approaching the finite element method only when substructue becomes very small.
关键词
子结构
有限元
约束模态
形函数
substructure
finite element
constrained modal
shape function
fixedface
