以某双蜗壳混流泵转轮为例,采用CFX-ANSYS流固耦合分析技术对其设计工况点下,分别在空气和水中进行静力强度和模态分析,计算出其应力、位移分布和振动的固有频率。结果表明,水压力仅改变转轮的位移与应力分布,而对强度和振动频率的影响很小,为转轮的整体强度设计和振动分析提供了简化依据。 Taking CFD-ANSYS fluid-solid coupling analysis technology as an example, the CFX-ANSYS fluid-solid coupling analysis technique was used to analyze the static strength and modalities of the double-volute Francis turbine in air and water respectively, and calculate the stress and displacement distribution And the natural frequency of vibration. The results show that the water pressure only changes the displacement and stress distribution of the runner, but has little influence on the strength and vibration frequency, which provides a simplified basis for the overall strength design and vibration analysis of the runner.