某型自润滑杆端关节轴承仿真分析

Design and simulation of a self-lubricating rod end spherical plain bearing

为分析某型自润滑杆端关节轴承的结构、制造工艺和疲劳寿命是否满足使用要求,基于Abaqus软件建立该轴承的有限元模型,通过对产品动态加载和轴承-杆端体过盈装配进行仿真分析和试验验证轴承结构的科学性,通过对外圈挤压和车削过程进行工艺优化仿真提高轴承的密合度,通过对轴承铆压固定和轴向推出过程进行仿真确保铆压固定性能满足要求。基于杆端体S-N曲线,计算轴承疲劳寿命,并通过磨损仿真获得轴承25000次摆动的磨损量,结果认为该轴承满足设计要求。仿真结果与试验结果吻合,证明仿真方法和结果可靠。

To analyze whether the structure,manufacturing process and fatigue life of a self-lubricating rod end spherical plain bearing meet the service requirements,the finite element model of the bearing is established based on Abaqus software.The accuracy of bearing structure is verified by the simulation analysis and test of product dynamic loading and bearing rod end interference fitting.The tightness of the bearing is improved by the manufacturing process optimization simulation of extrusion and turning process of outer ring.The riveting and fixing performance is ensured to meet the requirements by the simulation of the bearing riveting and axial pushing out process.Based on the S-N curve of rod end body,the bearing fatigue life is computed,and the wear of the bearing for 25000 movements is obtained by the wear simulation.The results show that the bearing meets the design requirements.The simulation results are consistent with the test results,which proves the reliability of the simulation method and results.