Creep Characteristic of Rubber on Elastohydrodynamic Lubrication of Water-lubricated Rubber Bearing

Zhou Yabo; Wang Youqiang; Long Shenwen; Wei Cong

doi:10.16578/j.issn.1004.2539.2018.07.003

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Creep Characteristic of Rubber on Elastohydrodynamic Lubrication of Water-lubricated Rubber Bearing

更新时间：2022-10-20

- Creep Characteristic of Rubber on Elastohydrodynamic Lubrication of Water-lubricated Rubber Bearing
- Vol. 42, Issue 7, Pages: 9-13(2018)
- 作者机构：
  
  1. 青岛理工大学机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2018.07.003
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[1]周亚博,王优强,龙慎文,魏聪.橡胶蠕变特性对水润滑橡胶轴承弹流润滑的影响[J].机械传动,2018,42(07):9-13+18.

Zhou Yabo, Wang Youqiang, Long Shenwen, et al. Creep Characteristic of Rubber on Elastohydrodynamic Lubrication of Water-lubricated Rubber Bearing. [J]. 42(7):9-13(2018)
[1]周亚博,王优强,龙慎文,魏聪.橡胶蠕变特性对水润滑橡胶轴承弹流润滑的影响[J].机械传动,2018,42(07):9-13+18. DOI： 10.16578/j.issn.1004.2539.2018.07.003.

Zhou Yabo, Wang Youqiang, Long Shenwen, et al. Creep Characteristic of Rubber on Elastohydrodynamic Lubrication of Water-lubricated Rubber Bearing. [J]. 42(7):9-13(2018) DOI： 10.16578/j.issn.1004.2539.2018.07.003.

摘要

考虑了橡胶轴承材料蠕变特性,建立了水润滑轴承的无限长线接触模型,基于Kelvin模型和三参量模型,对水润滑橡胶轴承进行了弹流润滑分析。通过这两种蠕变模型,分别得到了橡胶蠕变对润滑膜压力和膜厚的影响;分析比较了两种模型影响下的中心压力、中心膜厚和最小膜厚随时间的变化。结果表明,考虑橡胶轴承蠕变特性对润滑膜压力和膜厚的影响很大,在两种蠕变模型下,润滑膜的压力均随着蠕变时间变小,润滑膜厚随着蠕变时间变大,同时接触区不断增大并趋于稳定。中心压力随着蠕变时间逐渐增大并趋于稳定,最小膜厚随着蠕变时间先增加后减小到稳定值。蠕变稳定后,两种模型下的压力、膜厚均大于将橡胶轴承视为线弹性体的值,与之前工作对比,三参量固体模型比Kelvin模型更能描述橡胶轴承的润滑性能。

Abstract

Considering the creep characteristics of the rubber bearing material,the infinite line contact model of the water-lubricated bearing is established,based on the Kelvin model and the three-parameter model,the elastohydrodynamic lubrication of water-lubricated rubber bearings is analyzed. The effects of creep of rubber bearing on the pressure and film thickness of the lubricating membrane are obtained. The effects of the central pressure,the central film thickness and the minimum film thickness under the influence of the two models are analyzed and contrasted. The results show that the creep characteristics of the rubber bearing has great influence on the pressure and the thickness of the lubricating membrane. Under the two creep models,the pressure of the lubricating film decreases with the creep time,and the thickness of the lubricating film increases with the creep time,at the same time the contact area is increasing to the end of the constant value. The central pressure increases with the creep time and tends to be stable. The minimum film thickness decreases with the creep time and then decreases to the steady value. After the creep stabilization,the pressure and film thickness of the two models are larger than those of the rubber bearing as the linear elastomer. Compared with the previous work,the three-parameter solid model can describe the lubricating performance of the rubber bearing better than the Kelvin model.

关键词

水润滑橡胶轴承蠕变Kelvin模型三参量模型

Keywords

Water lubricationRubber bearingCreepKelvin modelThree parameter model

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