Analysis of Static Characteristic of Hydrodynamic Bearing with Different Surface Roughnesses

Hong Guo; Lanlan Song; Shaolin Zhang; Weipei He

doi:10.16578/j.issn.1004.2539.2020.09.017

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Analysis of Static Characteristic of Hydrodynamic Bearing with Different Surface Roughnesses

Test·Analysis | 更新时间：2022-11-02

- Analysis of Static Characteristic of Hydrodynamic Bearing with Different Surface Roughnesses
- Journal of Mechanical Transmission Vol. 44, Issue 9, Pages: 106-113(2020)
- 作者机构：
  
  1.郑州大学机械与动力工程学院，河南郑州 450001
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2020.09.017
  CLC：
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郭红,宋兰兰,张绍林等.不同表面粗糙度下动压轴承静特性分析[J].机械传动,2020,44(09):106-113.

Guo Hong,Song Lanlan,Zhang Shaolin,et al.Analysis of Static Characteristic of Hydrodynamic Bearing with Different Surface Roughnesses[J].Journal of Mechanical Transmission,2020,44(09):106-113.
郭红,宋兰兰,张绍林等.不同表面粗糙度下动压轴承静特性分析[J].机械传动,2020,44(09):106-113. DOI： 10.16578/j.issn.1004.2539.2020.09.017.

Guo Hong,Song Lanlan,Zhang Shaolin,et al.Analysis of Static Characteristic of Hydrodynamic Bearing with Different Surface Roughnesses[J].Journal of Mechanical Transmission,2020,44(09):106-113. DOI： 10.16578/j.issn.1004.2539.2020.09.017.

摘要

当动压滑动轴承的工作表面粗糙度达到和油膜厚度同一量级（μm）时，表面粗糙度对轴承特性参数的影响不可忽略。为研究粗糙度对轴承静特性的影响，基于M2000摩擦磨损试验机搭建试验平台，对42CrMo钢的滑动摩擦副进行试验，并建立了考虑表面粗糙度的Reynolds数学模型进行求解，得到不同表面粗糙度下油膜承载力、摩擦阻力以及摩擦因数等特性参数。研究结果表明，随着载荷增大，摩擦阻力变大、摩擦因数变小；同等载荷下，随着润滑油温度升高，摩擦阻力变小、摩擦因数变小；粗糙度越大，摩擦阻力也越大、摩擦因数越大。

Abstract

When the working surface roughness of hydrodynamic sliding bearing reaches the same magnitude （micron） as the oil film thickness， the influence of surface roughness on the characteristic parameters of bearing cannot be ignored. In order to study the influence of roughness on the static characteristics of bearing， an experimental platform is built based on M2000 friction and wear testing machine to test the sliding friction pairs of 42CrMo steel， and a Reynolds mathematical model considering the surface roughness is established and solved. According them， the characteristic parameter of bearing capacity， friction resistance and friction coefficient of oil film with different surface roughness are obtained. The results show that with the increase of the load， the friction resistance become larger and friction coefficient become smaller， with the increase of the temperature of the inlet oil under the same load， the friction resistance become smaller and friction coefficient become smaller. The larger the roughness is， the larger the friction resistance and friction coefficient are.

关键词

动压轴承表面粗糙度轴承特性参数Reynolds方程

Keywords

Dynamic bearingSurface roughnessBearing characteristic parameterReynolds equation

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