Title: Investigation on working efficiency and performance of journal bearings using various microtextures

Authors: Qian Li; Yundong Mei; Xiaoguang Tian; Ye Li; Bei Sun

Addresses: College of Mechanical and Electrical Engineering, Huanghe Jiaotong University, Henan Provincial Engineering Technology Research Center for Intelligent Manufacturing Technology and Equipment, Jiaozuo, Henan, 454950, China ' College of Mechanical and Electrical Engineering, Huanghe Jiaotong University, Henan Provincial Engineering Technology Research Center for Intelligent Manufacturing Technology and Equipment, Jiaozuo, Henan, 454950, China ' College of Mechanical and Electrical Engineering, Huanghe Jiaotong University, Henan Provincial Engineering Technology Research Center for Intelligent Manufacturing Technology and Equipment, Jiaozuo, Henan, 454950, China ' College of Mechanical and Electrical Engineering, Huanghe Jiaotong University, Henan Provincial Engineering Technology Research Center for Intelligent Manufacturing Technology and Equipment, Jiaozuo, Henan, 454950, China ' College of Mechanical and Electrical Engineering, Jiaozuo University, Henan, 454950, China

Abstract: To research the working efficiency and performance of journal bearings (JBs) using microtextures, the various microtextures including the cylindrical-round-structure (CRS), hemispherical-structures (HS), square-cylinder-structures (SCS), and square-wedge-structures (SWS) were proposed and evaluated based on the lubrication model of JBs. Results indicated that by adding microtextures in JBs, the lubrication efficiency and friction of JBs were remarkably improved compared to ignoring the microtextures. Besides, both HS and SWS are better than CRS and SCS in improving the bearing capacity of JBs while both CRS and HS are better than SCS and SWS in reducing the friction of JBs. Especially, HS improves both the bearing capacity and the friction of JBs better than other structures. The research results not only found the optimal lubrication efficiency of JBs using HS but also enriched the reference literature in the specialised field.

Keywords: journal bearings; various microtextures; CRS; cylindrical-round-structure; HS; SCS; square-cylinder-structures; SWS; square-wedge-structures; lubrication performance.

DOI: 10.1504/IJCMSSE.2025.146309

International Journal of Computational Materials Science and Surface Engineering, 2025 Vol.12 No.2, pp.168 - 185

Received: 02 Jan 2025
Accepted: 02 Apr 2025
Published online: 20 May 2025 *

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