contributor author | L. Chang | |
contributor author | P. B. Hall | |
contributor author | R. Thom | |
contributor author | Yongwu Zhao | |
contributor author | C. Moore | |
date accessioned | 2017-05-09T00:06:09Z | |
date available | 2017-05-09T00:06:09Z | |
date copyright | January, 2001 | |
date issued | 2001 | |
identifier issn | 0742-4787 | |
identifier other | JOTRE9-28694#61_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/125970 | |
description abstract | This paper reports on experiments and theoretical analyses of heat generation and scuffing failure in rolling contacts. The experiments were conducted with dry contacts, and the theoretical analyses were carried out using a deterministic thermal contact model. The research reveals that heat generated by asperity plastic deformation in the direction normal to the contact can be significant in high-load, high-speed contacts under boundary and mixed lubrication conditions. Under near rolling conditions, heat generated by the plastic deformation largely dominates that by the friction and is the main source leading to contact scuffing. This heat generation is shown to be significant compared to frictional heating even at relatively large slide-to-roll ratios. Parametric studies show that the ratio of asperity-plastic-deformation heating to frictional heating is sensitive to slide-to-roll ratio, hardness and surface finish but insensitive to contact load, rolling velocity and fluid/asperity load sharing. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | On Heat Generation in Rolling Contacts Under Boundary and Mixed Lubrication | |
type | Journal Paper | |
journal volume | 123 | |
journal issue | 1 | |
journal title | Journal of Tribology | |
identifier doi | 10.1115/1.1330733 | |
journal fristpage | 61 | |
journal lastpage | 66 | |
identifier eissn | 1528-8897 | |
keywords | Lubrication | |
keywords | Heat | |
keywords | Temperature | |
keywords | Stress | |
keywords | Heating | |
keywords | Deformation | |
keywords | Surface roughness AND Friction | |
tree | Journal of Tribology:;2001:;volume( 123 ):;issue: 001 | |
contenttype | Fulltext | |