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为减轻质量、提高冷却效率,针对下一代高推重比涡扇发动机高压涡轮盘的优化设计,基于3维双辐板涡轮盘模型进行单向流固耦合分析,通过定常流动换热分析得到该结构盘腔中的流场、压力场和温度场分布,将盘腔表面压力分布和盘体上的温度分布作为载荷传递给盘体,对盘体进行应力分析得到应力场,从而建立起温度场和应力场的直接关联,总结出盘腔转速是影响盘体最大等效应力的关键参数,为双辐板涡轮盘的冷却设计和结构优化提供了数据支撑。
In order to reduce the quality and improve the cooling efficiency, aiming at the optimal design of the high pressure turbine disc of the next generation HPTB turbofan engine, the one-way fluid-solid coupling analysis based on the 3-dimensional double-spoke turbine disc model was made and the structure was obtained by the steady flow heat transfer analysis The flow field, the pressure field and the temperature field in the disk chamber distribute the pressure distribution on the surface of the disk cavity and the temperature distribution on the disk body to the disk body as a load. The stress field of the disk body is analyzed to obtain the temperature field and It is concluded that the disk rotation speed is the key parameter that affects the maximum equivalent stress of the disk body and provides the data support for the cooling design and structure optimization of the double-spoke disk disk.