杆系结构非线性静力分析的数值模拟  

Numerical Simulation of Nonlinear Static Analysis for Frames

作　　者：王新敏[1] 陈伟[1] 刘庆宽[1] 

机构地区：[1]石家庄铁道学院大型结构健康诊断与控制研究所,河北石家庄050043

出　　处：《石家庄铁道学院学报》2004年第2期5-10,共6页Journal of Shijiazhuang Railway Institute

摘　　要：介绍了结构稳定和非线性分析的基本概念及其二者的关系,利用ANSYS对杆系结构的非线性静力问题进行了数值模拟,如结构稳定、几何非线性和物理非线性等,并说明了求解的基本过程和应注意的问题。通过大量计算分析及其与理论解的比较表明,ANSYS对这些问题的数值模拟具有很大的优越性,既可用于理论研究,又能指导工程设计和实践。In this paper, the basic concepts of structure stability and nonlinear analysis are introduced in detail.The relationship between the stability and nonlinear analysis for frames is discussed. The numerical simulation of nonlinear static analysis for frames, such as structure stability,geometry and physical nonlinear analysis,is studied with the commercial FEA program ANSYS. The basic solving process and some specific problems, which deserve special attention, are explained. After examples of frames are analyzed, the results obtained through ANSYS are compared with those of theoretical analysis, showing that numerical simulation of these problems with ANSYS has many advantages, and that the method can not only be applied in the research of theory but also be used in the design and construction of engineering structures.

关 键 词：杆系结构 非线性分析 数值模拟 结构稳定 

分 类 号：O343[理学—固体力学] TU323[理学—力学]