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变速点、线接触副弹流润滑油膜的观测
引用本文:苗乃明,苏少航,丁建宁,华同曙.变速点、线接触副弹流润滑油膜的观测[J].润滑与密封,2011,36(2).
作者姓名:苗乃明  苏少航  丁建宁  华同曙
作者单位:1. 常州大学机械与能源工程学院,江苏常州,213016;江苏大学机械工程学院,江苏镇江,212013
2. 常州大学机械与能源工程学院,江苏常州,213016
基金项目:常州大学校基金项目(ZMF09020016)
摘    要:应用光干涉方法,在自制的光弹流试验机上分别对纯滚动条件下点接触和线接触形成的弹流油膜进行变卷吸速度实验,并进行油膜测量。结果表明,在卷吸速度为零时都有封油现象的出现。随着卷吸速度的增加,油膜厚度增加,点接触形成的弹流油膜具有典型的马蹄形特征,线接触形成的弹流油膜在接触区端部有类似点接触的马蹄形收缩。要达到同样的最大赫兹接触压力,施加在线接触实验上的载荷要比施加在点接触实验上的载荷大40倍左右。

关 键 词:高副接触  弹流润滑  油膜观测  

Observations of Point and Line Contact EHL Oil Film under Variable Speed Condition
Miao Naiming,Su Shaohang,Ding Jianning,Hua Tongshu.Observations of Point and Line Contact EHL Oil Film under Variable Speed Condition[J].Lubrication Engineering,2011,36(2).
Authors:Miao Naiming  Su Shaohang  Ding Jianning  Hua Tongshu
Affiliation:Miao Naiming1,2 Su Shaohang1 Ding Jianning1,2 Hua Tongshu1(1.College of Mechanical and Energy Engineering,Changzhou University,Changzhou Jiangsu 213016,China,2.College of Mechanical Engineering,Jiangsu University,Zhenjiang Jiangsu 212013,China)
Abstract:In the self-made optical EHL test machine,pure rolling point contact and line contact EHL film was studied experimentally under variable entrainment speed condition by optical interferometry,the film was measured.The result shows that there is a sealed oil phenomenon when the entrainment velocity is zero.As the entrainment velocity increases,the oil film thickness increases.The point contact EHL film has the typical horseshoe-shaped features.The line contact EHL film is similar to the former's horseshoe-sha...
Keywords:higher pair contacts  elastohydrodynamic lubrication  film observation  
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