Based on the analysis of relative motion between the tray of thevibrating sifter and UO2 fuel core granules, a model is established in order to simulate the working process of the vibrating sifter.

• 基于对振动分选机托板与UO2燃料芯核颗粒间相对运动的分析，研究建立了描述燃料芯核振动分选机工作机理的模型，并给出了仿真结果。