【摘要】 本文对结构非线性分析方法做了简要探讨。通过对各种方法的综合比较,编制了以弧长法为主的非线性求解的有限元计算程序,并用该程序对一些近来发表的实验结果及算例做了考证。在缺陷结构的稳定性分析中,用随机数模拟结构安装偏差,使计算分析更接近于工程实际。更多还原

【Abstract】 Some nonlinear solution methods are concisely studied in this paper. By the comprehensive comparison of these methods, a nonlinear finite element computer program chiefly depended on arc-length method is compiled. With this program,some numerical examples and experimental results published in recent years are analized for comparison. In the structural stability analysis, random number are used to simulate the errors in erection of the structure,which can make the calculation much more close to the real structures.更多还原