Comparison of Oil Film Thickness on Rolling Motion and Sliding Motion

滚动运动和滑动运动时油膜厚度的比较

• 批准号: 04650138
• 负责人: TERAUCHI Yoshio
• 金额: $ 1.34万
• 依托单位: Fukuyama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04650138/
• 关键词: Lubricant; Tribology; Oil Film Thickness; Interferometric Method; Non-Newtonian Fluid; Eyling Viscosity; Shearing Heat; Gear; 潤滑油膜厚さ; 光干渉法による測定; サファイア板; 純粋転がり運動; 純粋滑り運動; 滑り率

The elastohydrodynamic oil films formed between a steel ball and a sapphire disk were observed by an optical interference method. In this study, a paraffin base oil, a synthetic oil and a traction oil were adopted for lubricants. Then the influence of a sliding velocity on the elastohydrodynamic film of each oil was investigated. The experiment makes it evident that the increase of the sliding ratio tends to reduce the film thickness, and fluid properties of the oils influence the rate of the film thickness reduction. This experimental result can be explained by the theoretical calculation of the elastohydrodynamic lubrication which takes account of the effect of the viscous heating and the effect of the eyring viscosity.

用光学干涉法观察了钢球与蓝宝石圆盘间形成的弹流油膜。在这项研究中，采用石蜡基础油，合成油和牵引油的润滑剂。研究了滑动速度对油膜的影响。实验结果表明，滑动比的增大有减小油膜厚度的趋势，润滑油的流体性质影响油膜厚度减小的速率。这一实验结果可以用考虑粘性加热效应和Eyring粘度效应的弹流润滑理论计算来解释。