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应用结构分析有限元法对某轧机轧辊连接轴套裂纹原因进行了分析，并针对轴套应力集中问题进行形状优化设计，得出了一种较为合理的修改方案。
The finite element method of structural analysis was used to analyze the crack cause of a rolling bearing sleeve of a mill. The shape optimization design of the stress concentration of the bush was carried out, and a more reasonable modification was obtained.