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为获得旋喷泵叶轮在设计工况下的等效应力及变形分布情况,基于FSI原理对旋喷泵叶轮进行了结构分析。采用多物理场协同仿真平台ANSYS Workbench,基于单向流固耦合原理对旋喷泵叶轮结构进行了仿真计算,同时对单独施加离心力载荷或流场压力载荷的旋喷泵叶轮应力与变形分布情况进行了仿真。结果表明,在设计工况下叶轮应力分布不均且在局部区域存在应力集中现象;叶轮变形随半径的增大而增大,并在叶轮边缘达到最大值0.095 887mm;离心力惯性载荷是影响叶轮应力与变形分布主要因素。
In order to obtain the equivalent stress and deformation distribution of rotary jet pump impeller under design conditions, the structure of the rotary jet pump impeller was analyzed based on FSI principle. The multi-physics co-simulation platform ANSYS Workbench was used to simulate the structure of the rotary jet pump impeller based on the one-way fluid-structure interaction principle. At the same time, the stress and deformation distribution of the rotary jet pump impeller with centrifugal load or flow pressure load alone Simulation. The results show that the stress distribution of the impeller is uneven and the stress concentration exists in the local area under the design conditions. The deformation of the impeller increases with the increase of the radius and reaches the maximum value of 0.095887mm at the edge of the impeller. The centrifugal load affects the stress With the main factors of deformation distribution.