کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9679542 | 1455083 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of adhesion under wet conditions for three-dimensional contact considering surface roughness
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Analysis of adhesion under wet conditions for three-dimensional contact considering surface roughness Analysis of adhesion under wet conditions for three-dimensional contact considering surface roughness](/preview/png/9679542.png)
چکیده انگلیسی
This paper describes a numerical model to estimate the adhesion coefficient between rail and wheel under wet conditions, by applying the partial elasto-hydrodynamic lubrication (EHL) theory at three-dimensional (3D) contact considering surface roughness. The effect of the characteristics of surface roughness on the adhesion coefficient is particularly focused on in this study. Based upon numerical solutions obtained by the 3D numerical model, the effects of rolling speed, water temperature, surface roughness amplitude (i.e., standard deviation of roughness height) and parameter of roughness orientation on asperity contact pressure, which has important influence on the adhesion coefficient, are investigated under wet conditions. Furthermore, to verify the adequacy of the 3D numerical model adapted to estimate the adhesion coefficient between rail and wheel, the numerical solutions are compared with the experimental values that were obtained by a twin-disc rolling contact machine.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 258, Issues 7â8, March 2005, Pages 1209-1216
Journal: Wear - Volume 258, Issues 7â8, March 2005, Pages 1209-1216
نویسندگان
H. Chen, M. Ishida, T. Nakahara,