任意形状底扁壳的线性和非线性分析  

THE LINEAR AND NONLINEAR ANALYSIS FOR SHALLOW SHELLS WITH ARBITRARY SHAPES

作　　者：李光耀[1] 徐芝伦[2] 

机构地区：[1]湖南大学机械工程系,长沙410082 [2]河海大学,南京210024

出　　处：《工程力学》1997年第1期1-7,共7页Engineering Mechanics

摘　　要：本文提出了摄动差分法求解扁壳线性和非线性弯曲问题,由于采用了任意网格剖分,可处理复杂形状边界条件及多种荷载工况。数值算例表明,本文方法具有计算量少、计算精度高、适应性强等特点。A finite difference method combined with perturbation method for the geomet- rically linear and nonlinear analysis of shallow shells with arbitrary shapes is presented in this paper.The method is completely general with respect to various boundary conditions,load cases ,and the shapes of shells because of the adoption of irregular meshes.The numerical results show that the method is efficient with higher accuracy and lower computing time.

关 键 词：任意网格 差分法 壳体 弹性力学 

分 类 号：O343.2[理学—固体力学]