结构稳定分析域外奇点法  

LINEAR BUCKLING ANALYSIS OF STRUCTURES BY SINGULAR-POINTS-OUTSIDE-DOMAIN METHOD

作　　者：苏成[1] 范学明[1] 

机构地区：[1]华南理工大学土木工程系,广州510640

出　　处：《力学与实践》2007年第5期32-34,28,共4页Mechanics in Engineering

摘　　要：利用等效横向荷载的概念,基于静力问题基本解,导出了平面杆系结构线性失稳分析的域外奇点法.该法避开使用形式复杂的稳定问题控制微分方程的基本解,使之成为静力方法的一种直观推广,具有物理意义明确,便于实现等优点.给出一数值算例,验证了方法的正确性与实用性.This paper presents a singular-points- outside-domain method for linear buckling analysis of plane frame structures by use of the concept of equivalent lateral loads. Static fundamental solutions are employed in the proposed method, while the complicated fundamental solutions corresponding to linear buckling problems are totally avoided. The method presented in this paper is straightforward and practical. Numerical examples are given to show the effectiveness of the proposed method.

关 键 词：杆系结构 稳定分析 域外奇点法 

分 类 号：O343.1[理学—固体力学]