空间桁架有限元分析向量化编程技术研究

Vectorization programming techniques for space truss finite element analysis

利用基于MATLAB的向量化编程方法,研究了空间桁架有限元分析中单元刚度矩阵形成、边界条件处理、单元应力与约束反力求解等关键问题的编程技术,所编程序具有语句简洁、数学物理意义清晰和运行效率高的优点,可以方便地应用于桁架结构的工程计算和有限元教学.

Based on the vectorization programming method of MATLAB, the article studies the programming technology in space truss finite element analysis, such as the formation of element stiffness matrix, the disposal of terminal condition, the derivation of element stress and reaction force. It is provided with brevity statement, distinct physical meanings and high operational efficiency. The program in the article can be expediently used in engineering calculation and finite element analysis teaching.