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本文针对有限元结构的数值计算，为获得较高的计算效率和良好的数值解而引入了重分析方法．静力分析和应力影响函数求解分属于一个工程结构问题的不同侧面．结构的应力影响函数的机动算法，是将某一关心单元的关心应力分量的影响函数的求解，转化为在一个特定荷载下的结构位移场的求解，从而等价于一种静力问题．根据工程要求，在所关心的最不利受载处或最危险截面或是影响函数变化剧烈的关心单元附近．进行局部网格细分后重新分析，将局部修改区域作为一个子结构，采用凝聚法获得结构总刚度阵的变化量，并在初次结构总刚度阵的基础上，利用迭代法，求取所需的静力或是应力影响函数，结果令人满意．
In this paper, we focus on the numerical calculation of finite element structure, and introduce the reanalysis method in order to obtain higher computational efficiency and good numerical solution. Static analysis and stress impact function solving belong to different aspects of a structural problem. The maneuvering algorithm of the structural stress-response function transforms the solution of the influence function of the concerned stress component of a concerned unit into the solution of the structural displacement field under a specific load, which is equivalent to a static problem. Depending on the project requirements, at the most unfavorable load point of interest or at the most dangerous section or near the care unit where the impact function changes dramatically. The local mesh is subdivided and reanalyzed. The local modified region is taken as a substructure, and the change of the total stiffness matrix is obtained by the cohesion method. Based on the total stiffness matrix of the primary structure, an iterative method is used to obtain the required The static or the stress influence function, the result is satisfying.