中厚板接触问题的有限元线法分析  

FEMOL ANALYSIS FOR REISSNER PLATE ON RIGD FOUNDATION

作　　者：方亚非[1] 袁驷[1] 

机构地区：[1]清华大学土木系,北京100084

出　　处：《工程力学》1999年第1期9-17,共9页Engineering Mechanics

基　　金：国家杰出青年基金

摘　　要：本文从动边界变分原理出发推导了中厚板接触问题的有限元线法离散方程体系，并利用新改进的常微分方程求解器Ｃ０Ｌ９０进行求解。数值算例表明，本法精度高，收敛快，无须反复更改网格划分，是一个求解动边界问题的有竞争力的半解析方法。The Finite Element Method of Lines (FEMOL) discrete Ordinary DifferentialEquation system (ODEs) was derived for the Reissner plate on rigid foundation according tomoving boundary variational principle, and was solved using the newly developed ODE solver,COL90. The numerical resultS show that the method is a competable semi-analytical method formoving boundary problems as its high accuracy, rapid convergence and unnecessary remesh.

关 键 词：有限元线法 中厚板 动边界变分 接触问题 地基 

分 类 号：O343.3[理学—固体力学] TU471[理学—力学]