摘要
基于有限元分析 ,本文提出空间结构变更后的新算法。该算法将杆件撤除视为原结构上施加了关联荷载 ,不需重建并分解总刚 ,重新求解方程组 ,大大减小计算量。
A new computing method for spatial structures after variation is presented in this paper on basis of finite element analysis.In this method the removal of a member is treated as adding the relative load applying to the original structure,the displacement and the internal force redistribution can be computed without modifying the global stiffiness matrix and rebuilding the solution equation. By using the new method,the computational time is greatly reduced.The general formula of the relative load is given.
出处
《空间结构》
CSCD
2001年第2期54-60,共7页
Spatial Structures
