Apparent Multi-Valued Friction in Lubricated Contact Systems From Tangential DynamicsSource: Journal of Tribology:;1997:;volume( 119 ):;issue: 004::page 632Author:D. P. Hess
DOI: 10.1115/1.2833862Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Multi-valued friction is often observed in lubricated contact systems operating under unsteady sliding conditions. It the past, this behavior has been modeled using a measured time delay between changes in sliding velocity and resulting changes in friction. More recent work has revealed that fluctuations in normal separation are the principal cause of this deviation from steady friction behavior. This paper demonstrates that tangential contact dynamics can result in apparent deviations from steady friction which can resemble true deviations found from fluctuations in normal separation. Two different dynamic models are considered. One model accommodates the tangential rider dynamics of a friction test apparatus. The other model considers the prospect of tangential dynamics associated with asperity contacts.
keyword(s): Dynamics (Mechanics) , Friction , Separation (Technology) , Fluctuations (Physics) , Delays , Dynamic models AND Contact dynamics ,
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contributor author | D. P. Hess | |
date accessioned | 2017-05-08T23:54:40Z | |
date available | 2017-05-08T23:54:40Z | |
date copyright | October, 1997 | |
date issued | 1997 | |
identifier issn | 0742-4787 | |
identifier other | JOTRE9-28672#632_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/119379 | |
description abstract | Multi-valued friction is often observed in lubricated contact systems operating under unsteady sliding conditions. It the past, this behavior has been modeled using a measured time delay between changes in sliding velocity and resulting changes in friction. More recent work has revealed that fluctuations in normal separation are the principal cause of this deviation from steady friction behavior. This paper demonstrates that tangential contact dynamics can result in apparent deviations from steady friction which can resemble true deviations found from fluctuations in normal separation. Two different dynamic models are considered. One model accommodates the tangential rider dynamics of a friction test apparatus. The other model considers the prospect of tangential dynamics associated with asperity contacts. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Apparent Multi-Valued Friction in Lubricated Contact Systems From Tangential Dynamics | |
type | Journal Paper | |
journal volume | 119 | |
journal issue | 4 | |
journal title | Journal of Tribology | |
identifier doi | 10.1115/1.2833862 | |
journal fristpage | 632 | |
journal lastpage | 636 | |
identifier eissn | 1528-8897 | |
keywords | Dynamics (Mechanics) | |
keywords | Friction | |
keywords | Separation (Technology) | |
keywords | Fluctuations (Physics) | |
keywords | Delays | |
keywords | Dynamic models AND Contact dynamics | |
tree | Journal of Tribology:;1997:;volume( 119 ):;issue: 004 | |
contenttype | Fulltext |