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采用三维有限元计算方法 ,对含有穿透性裂纹的N12 5汽轮机低压内缸进行三维应力场计算分析 ,阐述了裂纹缸体加固的必要性。
Three-dimensional finite element method is used to calculate and analyze the three-dimensional stress field of N12 5 steam turbine low pressure inner cylinder with penetrating crack. The necessity of crack cylinder body reinforcement is expounded.