Meshing frictional characteristics of spur gears under dry friction and heavy loads : Effects of the preset pitting-like micro-textures array

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jinghu Ji
  • Yanhu Zhang
  • Xijun Hua
  • Xiaojing Xu
  • Yonghong Fu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number108296
Journal / PublicationTribology International
Volume180
Online published24 Jan 2023
Publication statusPublished - Feb 2023

Abstract

Despite good approval for excellent friction regulation, surface texturing seems to be a penalty area for gears mostly because of the traditional cognition of surface (micro-)pitting and structural similarity. Surface microtextures were applied to the pinion flank to regulate the time-varying meshing stiffness and enhance the meshing characteristics. Results showed the stress regulation and smoothing capability of micro-textures in meshing process, the time-varying meshing stiffness increases by 4.75% and the frictional stability increased by 52%. Experiment results approve that the flank micro-textures can control friction and reduce torque by 26.2%. This study is significant for the systemic design of the dynamic performance and frictional meshing, especially for the gear engagement reliability in space without film lubrication. © 2023 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Spur gear, Surface textures, Meshing dynamics, Dry friction, STIFFNESS CALCULATION, PROFILE MODIFICATION, LUBRICATION, WEAR, PERFORMANCE, FATIGUE, PROPAGATION, PREDICTION, CONTACTS, DAMAGE

Citation Format(s)

Meshing frictional characteristics of spur gears under dry friction and heavy loads : Effects of the preset pitting-like micro-textures array. / Chen, Zhihao; Zhou, Ji; Liu, Bao et al.

In: Tribology International, Vol. 180, 108296, 02.2023.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review