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本文针对随机有限元中的常用算法,从计算效率、计算精度及编程等方面,通过同一例题进行了具体的比较,并进一步分析了每种算法的应用条件及应用范围。同时对TSFEM及一次二阶矩法通过一个计算结构可靠度的实例也加以比较,得出了很多有益的结论,为工程实际的选用提供了可靠的理论依据
In this paper, aiming at the commonly used algorithms in stochastic finite element, this paper makes a concrete comparison on the same example from the aspects of computational efficiency, calculation precision and programming, and further analyzes the application conditions and the application range of each algorithm. At the same time, TSFEM and a second-moment method are also compared through an example of calculating the structural reliability, and many useful conclusions are obtained, which provides a reliable theoretical basis for the practical selection of the project