考虑高温气体对燃气轮机旋转对称支承机座的作用,利用计算流体动力学软件CFX对支承板机座进行热流固耦合分析,并运用Workbench进行热固耦合计算。通过变换热气通道进口温度的计算方法,得到变工况条件下旋转对称支承板机座表面温度场分布,进而得到变工况下机座的热变形、热应力的变化关系。研究结论具有一定的理论意义和实用价值。 Considering the effect of high temperature gas on the gas turbine rotationally symmetrical support base, CFD software CFX was used to analyze the heat-mechanical coupling of the support base and to calculate the thermo-mechanical coupling using Workbench. By changing the inlet temperature of the hot gas path, the temperature field distribution of the rotating symmetrical bearing plate under variable working conditions is obtained, and the relationship between the thermal deformation and thermal stress of the rotating bearing under varying working conditions is obtained. The conclusion of the study has certain theoretical significance and practical value.