Optimization of groove texture profile to improve hydrodynamic lubrication performance:Theory and experiments

作     者：Wei WANG Yongyong HE Jun ZHAO Junyuan MAO Yutong HU Jianbin LUO Wei WANG;Yongyong HE;Jun ZHAO;Junyuan MAO;Yutong HU;Jianbin LUO

作者机构：State Key Laboratory of TribologyTsinghua UniversityBeijing 100084China Intelligent&Connected Vehicle Testing DepartmentChina Software Testing CenterBeijing 100048China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2020年第8卷第1期

页      面：83-94页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

主　　题：groove texture hydrodynamic lubrication laser texturing ultra‐low coefficient of friction 

摘      要：It is well known that groove texture with a careful design can be used to enhance the load‐carrying capacity of oil film under the conditions of hydrodynamic *** this study,a general parametric model was developed,and agenetic algorithm‐sequential quadratic programming hybrid method was adopted to obtain the global‐optimum profile of the groove *** optimized profiles at different rotating speeds are all *** numerical analysis results verified the effect of the *** addition to the numerical optimization,experiments were conducted to validate the superiority of the optimized *** experimental results show that the optimized groove texture can efficiently reduce the coefficient of friction(COF)and the temperature rise of the *** particular,the optimized groove textures can achieve stable ultra‐low COF values(COF0.01)under certain conditions.