罐体群结构和轴对称基础整体分析的广义位移方法

Coupling Analysis of Foundation with Axisymmetry and Structure with C_(nv) Symmetry by Generalized Displacements

对由Ｃｎν对称的罐体群结构与分层轴对称基础构成的体系．提出了一种在任意 荷载作用下的结构分析新方法．其特点为：（１）对结构和基础分别采用对称化基矢 下的广义位移和傅里叶级数中的调和分量作为未知数：（２）应用本文给出的广义位移 与关联的调和分量间的转换式和子结构凝聚等手段，实现结构与基础的拼接、耦合． 由于这种方法充分利用了结构、基础及所组成体系的对称性．可在计算精度和速度上 获得很大效益。

A new structural analysis method of coupling between structure with Cnv, symmetry and its axisymmetric foundation subjected to arbitrary loads is presented, Based on the proposed concept of the associative harmonic com-ponents, the transformations between the generalized displacements and the harmonic components are given, The methods presented in this paper make full use of the symmetry properties both in structure and its foundation, leading to an economical numerical model,