粗糙表面滑动轴承润滑性能研究  

Research on the Lubrication Performance of Sliding Bearings with Rough Surfaces

作　　者：袁春宇 孙浩洋[1] 王继荣[1] 张洪信[1] 卢宪玖 YUAN Chun-yu;SUN Hao-yang;WANG Ji-rong;ZHANG Hong-xin;LU Xian-jiu(College of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学机电工程学院,青岛266071

出　　处：《青岛大学学报(自然科学版)》2024年第4期13-18,共6页Journal of Qingdao University(Natural Science Edition)

基　　金：国家自然科学基金(批准号:52075278,50905090)资助;山东省自然科学基金青年基金(批准号:ZR202204190007)资助;青岛大学学科集群攻关项目资助。

摘　　要：在滑动轴承表面增加正交方向的正弦表面形貌,通过求解Reynolds方程,研究速度、载荷和粗糙度参数对润滑性能的影响。研究结果表明,最小膜厚随轴颈速度的增加而增大,随载荷的增加而减小;引入表面粗糙度后,压力和膜厚均出现波动,且波动的幅度随粗糙度波长的增加而减小,随粗糙度波幅的增大而增大;由于粗糙度所致的压力波动和膜厚波动均对材料的疲劳寿命和润滑的可靠性带来不利影响,因此机加工时减小表面粗糙度有利于提高滑动轴承的寿命。Two-directional sine functions were incorporated onto the surface of the plain bearing.By solving the Reynolds equation,the impacts of speed,load,and roughness parameters on its lubrication performance was research.The results show that the minimum film thickness increases with the increase of journal velocity and decreases with the increase of load.When surface roughness is introduced,the pressure and film thickness fluctuate,and the amplitude of the fluctuation decreases with the increase of roughness wavelength,and increases with the increase of roughness amplitude.Because the pressure fluctuation and film thickness fluctuation caused by roughness have adverse effects on the fatigue life and lubrication reliability of the material respectively,reducing the surface roughness during machining is conducive to improving the life of the plain bearing.

关 键 词：滑动轴承 粗糙度 油膜压力 润滑 

分 类 号：TH117.2[机械工程—机械设计及理论]