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提出一种拓扑修改的静态重分析的方法.该方法将所有新增加的自由度分步、逐次得增加到原结构上.在每一子步中利用过渡矩阵得到摄动基,并对摄动基进行正交化处理来进行Padé逼近,得到的近似解作为下一子步的原始解.循环结束时得到修改结构的近似解.
This paper proposes a method of static reanalysis with topological modification. This method adds all newly added degrees of freedom step by step to the original structure step by step. In each substep, the perturbation basis is obtained by using the transition matrix, The base is orthogonalized to Padé approximation, and the approximate solution obtained is used as the original solution of the next substep. An approximate solution of the modified structure is obtained at the end of the iteration.