【摘要】 为解决生产过程中TC4钛合金法兰与复合材料尾轴装配体轴向装配精度不达标的问题，建立了TC4钛合金法兰与复合材料尾轴冷缩装配仿真静力学模型。通过模拟TC4钛合金法兰冷却-压装-热膨胀全过程，分析了冷缩装配下TC4钛合金法兰接触应力、变形。通过研究TC4钛合金法兰-复合材料轴冷缩装配仿真模型，得出了TC4钛合金法兰在装配过程中出现轴向位移的可能原因为法兰热膨胀、法兰与轴管残余变形、法兰几何构型等。同时，通过仿真结果分析了轴向装配误差与压装深度关系及变化规律，得出了理论初始装配间隙以解决冷缩装配对轴向变形的影响。更多还原

【Abstract】 To address the issue of substandard axial assembly accuracy of the assembly of TC4 titanium alloy flanges and composite material tail shafts during the production process, a static simulation model for the shrink-fit assembly of TC4 titanium alloy flanges and composite material tail shafts was established. By simulating the entire process of cooling, pressfitting, and thermal expansion of the TC4 titanium alloy flange, the contact stress and deformation of the TC4 titanium alloy flange under shrink-fit assembly were analyzed. Through the study of the shrink-fit assembly simulation model of the TC4 titanium alloy flange-composite material shaft, the possible causes for the axial displacement of the TC4 titanium alloy flange during the assembly process were identified as: thermal expansion of the flange, residual deformation of the flange and the shaft tube, geometric configuration of the flange, etc. Meanwhile, based on the analysis of the simulation results, the relationship and variation law between the axial assembly error and the press-fitting depth were examined, and a theoretical initial assembly clearance was derived to address the impact of shrink-fit assembly on axial deformation.更多还原