叶脉形仿生织构化推力圆柱滚子轴承摩擦性能分析与试验

Analysis and Experiment on Tribological Performance of Vein-Bionic Textured Cylindrical Roller Thrust Bearing

为了研究叶脉形仿生织构对推力圆柱滚子轴承摩擦磨损性能的影响,利用ANSYSWorkbench建立推力圆柱滚子轴承的有限元模型,对试验工况下未织构化和织构化推力圆柱滚子轴承的真实物理状态进行了瞬态动力学分析,并试验验证。利用激光表面织构化技术制备了叶脉形仿生织构试样,并使用MMW-1A立式万能摩擦磨损试验机进行了试验。仿真与试验结果表明:与未织构化轴承相比较,叶脉形仿生织构化轴承摩擦系数的上升拐点明显延长,轴圈、保持架和座圈的磨损率分别降低96.92%、96.74%和98.92%,显著提高了轴承的耐磨性能,与仿真结果一致。这为叶脉形仿生织构设计的理论研究奠定了基础。

In order to study the influence of bionic vein texture on friction and wear performance of cylindrical roller thrust bearing,the finite element model of cylindrical roller thrust bearing was established by ANSYS Workbench,and the real physical state of untextured and textured cylindrical roller thrust bearing under test conditions was analyzed by transient dynamics,which was verified by test.The vein-shaped bionic texture samples were prepared by laser surface texturing technique,and were tested by MMW-1A vertical universal friction and wear tester.The simulation and test results show that,compared with the non-textured bearing,the rising inflection point of the friction coefficient of the vein-shaped bionic textured bearing is obviously prolonged,and the wear rates of the shaft ring,cage and seat ring are reduced by 96.92%,96.74%and 98.92%,respectively,which significantly improves the wear resistance of the bearing,which is consistent with the simulation results.This laid a foundation for the theoretical research of bionic texture design of vein shape.