摘要
作者在分析几何非线性问题时，把摄动法引人变分方程，推导了梁、板、扁壳的各级摄动变分方程，用这些方程可以方便地进行有限元的计算。
In analysing the geometrically nonlinear problems , this paper introduces the perturbation method into the variational equation, and derives the variational perturbation equations concerning geometrically non- linear problems of beams,plates and shallow shells,By means of these equations,the FEM can be conve-niently introduced to solve these problems.
出处
《大连水产学院学报》
CSCD
1994年第4期49-56,共8页
Journal of Dalian Fisheries University
关键词
摄动
几何非线性
变分
perturbation
geometrically non- linear
variation
