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.
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
关键词
杆系结构
非线性分析
数值模拟
结构稳定
frames
nonlinear analysis
numerical simulation
structure stability
