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依照汽轮机转子在启动过程中的热流情况 ,将汽轮机转子简化为无限长空心圆柱体模型 ,根据热传导理论 ,推导出在无热冲击情况下 ,保持汽轮机转子热应力不变的条件 ;并运用有限元法对该条件的正确性进行了验证。
According to the heat flux of steam turbine rotor during start-up, the turbine rotor is simplified as an infinite hollow cylinder model. According to the theory of heat conduction, the thermal stress of the steam turbine rotor under the condition of no thermal shock is deduced. The finite element The law validates the condition.