摘要
简述了网壳结构稳定问题的非线性特性,并基于ANSYS参数化设计语言(APDL),采用有限元非线性分析理论对网壳结构的整体稳定进行全过程分析。选用弧长法求解非线性方程,得到该网壳结构整体稳定的全过程荷载-位移曲线,并可得临界荷载,为网壳结构的设计和分析提供了有价值的参考。同时,在整个程序编制过程中显示出APDL语言在结构参数化建模等方面的优越性。
It describes the nonlinear characteristics of the latticed shell stability.Based on ANSYS parametric design language（APDL）,overall stability analysis of latticed shell structure has been conducted by the nonlinear element method.The arc-length method was used to solve the nonlinear equation systems,and the load-displacement curves of the latticed shell structure were obtained,and also the critical load.It is a valuable reference for the design and analysis of the similar latticed shell structure.At the same time,the superiority of APDL in parameterized modeling and other aspects are showed in the process of programming.
出处
《钢结构》
2011年第3期73-75,41,共4页
Steel Construction
关键词
网壳结构
APDL
几何非线性分析
整体稳定性
latticed shell structure
APDL
geometric nonlinear analysis
overall stability
