线性蠕变问题中两种摄动半解析计算格式

Two kinds of perturbational semi analytical computational formulae for the solution of linear creep problem

将线性蠕变的控制方程做摄动展开，用加权余量法和二类变量的变分原理，引入有限元线和Ｈａｍｉｌｔｏｎ混合状态元技术，建立了两种求解线性蠕变问题的摄动半解析计算格式。

Governing equations for the problem of linear creep are perturbationally expanded, and both finite element method of line and the method of mixed state Hamilton element are introduced using weighting technique and 2 type variable based variational principle, two kinds of perturbational semi analytical computational formulae are therefore established to solve the linear creep problems.