基于基面力概念的余能有限元模型  

The waste energy finite element model based on the base forces concept

作　　者：雷文贤[1] 

机构地区：[1]北京工业大学工程抗震与结构诊治北京市重点实验室

出　　处：《山西建筑》2008年第21期1-2,共2页Shanxi Architecture

基　　金：北京工业大学博士科研启动基金资助项目(项目编号:52031008200701)

摘　　要：利用基面力的概念及单元柔度矩阵的表达式,推导了基面力表示的单元柔度矩阵的平面展开式,应用以此概念为基础的余能有限元平面四边形单元模型计算数值算例,验证了该模型良好的计算性能。The plane unfolding formula of element flexibility matrix based on the base forces was deduced with the concept of base forces and the expression of element flexibility matrix. The calculation values of waste energy finite element plane quadrilateral element model based on the concept were used as an example, the better calculation performance of the model proved.

关 键 词：有限元 模型 弹性力学 柔度矩阵 

分 类 号：TU311[建筑科学—结构工程]