Analysis of Transient Elastohydrodynamic Lubrication of Asymmetric Polymer Gear

Mingyu Zuo; Youqiang Wang; Guangxiao Jian; Yu Hu; Jun Mo; Yuxin Fang

doi:10.16578/j.issn.1004.2539.2021.05.018

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Analysis of Transient Elastohydrodynamic Lubrication of Asymmetric Polymer Gear

Test·Analysis | 更新时间：2022-11-10

- Analysis of Transient Elastohydrodynamic Lubrication of Asymmetric Polymer Gear
- Journal of Mechanical Transmission Vol. 45, Issue 5, Pages: 120-125(2021)
- 作者机构：
  
  1.青岛理工大学机械与汽车工程学院，山东青岛 266520
  2.工业流体节能与污染控制教育部重点实验室，山东青岛 266520
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.05.018
  CLC：
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左名玉,王优强,菅光霄等.非对称聚合物齿轮的瞬态弹流润滑分析[J].机械传动,2021,45(05):120-125.

Zuo Mingyu,Wang Youqiang,Jian Guangxiao,et al.Analysis of Transient Elastohydrodynamic Lubrication of Asymmetric Polymer Gear[J].Journal of Mechanical Transmission,2021,45(05):120-125.
左名玉,王优强,菅光霄等.非对称聚合物齿轮的瞬态弹流润滑分析[J].机械传动,2021,45(05):120-125. DOI： 10.16578/j.issn.1004.2539.2021.05.018.

Zuo Mingyu,Wang Youqiang,Jian Guangxiao,et al.Analysis of Transient Elastohydrodynamic Lubrication of Asymmetric Polymer Gear[J].Journal of Mechanical Transmission,2021,45(05):120-125. DOI： 10.16578/j.issn.1004.2539.2021.05.018.

摘要

聚合物齿轮质轻而耐腐蚀，可降低噪声，提高经济效益。相对地，聚合物轮齿强度低于金属轮齿，故采用非对称设计提高聚合物齿轮的强度。为探究非对称聚合物齿轮的弹流润滑特性，在水润滑条件下，采用多重网格法对非对称聚合物齿轮进行了瞬态弹流润滑分析：对比非对称齿轮与传统对称齿轮的水膜压力与厚度；改变齿轮运行工况及考虑轮齿的表面粗糙度，研究其对齿轮弹流润滑分析的影响。结果表明，非对称齿轮可有效改善弹流润滑，润滑膜的压力和膜厚受齿轮转速和载荷影响较大，表面粗糙度对于非对称聚合物齿轮的弹流润滑有着不利影响，在应用中应保证齿面加工质量。

Abstract

Polymer gears are light and corrosion resistant， which can reduce noise and improve economic benefits. Correspondingly， polymer gear teeth are weaker than metal ones， so asymmetric design is adopted to improve the strength of polymer gear. In order to investigate the elastohydrodynamic characteristics of asymmetric polymer gears， analysis of transient elastohydrodynamic lubrication of asymmetric polymer gears is carried out under water lubrication by using the multi-grid method. The water film pressure and thickness of asymmetric gear are compared with that of traditional symmetric gear. The influence of changing gear operating condition and considering gear tooth surface roughness on gear elastohydrodynamic lubrication analysis is studied. The results show that the elastohydrodynamic performance of gears can be effectively improved by asymmetric design. The pressure and film thickness of the lubrication film are greatly affected by rotational velocity and load. The roughness has a negative effect on elastohydrodynamic lubrication of asymmetric polymer gears and the tooth surface quality should be guaranteed in applications.

关键词

非对称齿轮弹流润滑多重网格法聚合物齿轮

Keywords

Asymmetric gearElastohydrodynamic lubricationMulti-grid methodPolymer gear

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