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采用电厂实际启、停机曲线对600MW汽轮机组的高、中压转子分别进行了三维瞬态温度场及非线性应力场分析,并采用30Cr1MoV低周疲劳曲线对机组在实际启、停过程中的寿命损耗进行了估算。温度场及应力场的计算采用轴对称有限元法。
Using the actual plant start-up and stop-down curves, the transient temperature field and nonlinear stress field of high and medium pressure rotors of 600 MW steam turbine units were analyzed respectively. The 30Cr1MoV low cycle fatigue curves were used to analyze the life span of the units Losses were estimated. Calculation of temperature field and stress field using axial symmetry finite element method.