Friction performance and optimisation of diamond-like texture on hydraulic cylinder surface

Micro & nano letters

article

Xiaolan Chen¹  Liangcai Zeng¹  Feilong Zheng¹ 

[1] Key Laboratory of Metallurgical Equipment and Control of Ministry of Education, Wuhan University of Science and Technology;School of Mechanical and Electrical Engineering, Huanggang Normal University;Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology

关键词: friction;    optimisation;    diamond;    shapes (structures);    hydraulic systems;    conducting materials;    oils;    lubrication;    design engineering;    hydrodynamics;    friction performance;    optimisation;    diamond-like texture;    hydraulic cylinder surface;    ring surface;    grid texture;    striped texture;    conductive oil path;    wedge generation;    dynamic pressure lubrication;    orthogonal design method;    hydrodynamic lubrication effect;    diamond-like nonconductive texture;    shark skin;   

DOI  :  10.1049/mnl.2018.0026

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

For the ring surface of a hydraulic cylinder, grid and striped textures have been demonstrated in many previous works to easily provide a conductive oil path, which increases the difficulty of generating converging wedges and are harmful to the formation of dynamic pressure lubrication, especially for full lubrication. Moreover, these studies used an orthogonal design method to study the hydrodynamic lubrication effect and friction performance of the surface without considering the comprehensive effect of multiple parameters with simultaneous changes, which may introduce errors into the simulation analysis. In this work, a diamond-like, non-conductive texture, which mimics shark skin, is developed and optimised to determine the optimal texture morphology while simultaneously considering the influence of multiple parameters, including the diamond angle, axial length ratio, and area occupancy, to optimise the surface of the friction pair. The results show that under the same working conditions, the lift of the diamond texture is nine times greater than that of the striped texture, while its friction coefficient is only one-quarter of that of the striped texture, which will greatly improve the friction and responsiveness of the hydraulic cylinder.

【 授权许可】

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