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本文介绍用有限单元法对壳体与梁的组合结构进行静力分析的有限元程序。文中介绍了编制组合结构程序应考虑的问题及程序中所用到的公式。对于大型复杂结构形成的大型线性方程组,采用了只用内存的分块解法。用本程序计算纯壳例题,计算结果符合于解析解。计算组合结沟与试验对比能满足工程计算精度要求。用本程序计算组合结构与用美国SAP5程序计算结果是一致的。
This paper presents a finite element method for the shell and the beam combination of structural analysis of the finite element program. This paper introduces the problems that should be considered in composing combined structure program and the formula used in the program. For large linear systems with complex structures, a block-only solution using memory is used. Use this program to calculate the pure shell example, the calculation result is in accordance with the analytical solution. Comparing the test results with the experimental results can meet the requirements of engineering calculation precision. Using this program to calculate the combined structure and the results calculated with the United States SAP5 program is consistent.