The tribological contact under sliding condition in dry clutch facing surfaces during the engagement manoeuvre is strongly affected by contact pressure distribution, friction coefficient, material proprieties, surface roughness, sliding speed, and heat transfer as well. Unfortunately, all these phenomena are intimately coupled to each other. To this aim, finite element analyses have been proposed in this paper to investigate the coupled effects of contact pressure distribution and thermal field in electro-actuated driven system based on single dry clutch. In particular, the results of longitudinal vehicle dynamics have been used in numerical models to better understand how much the temperature rise modifies the mating surfaces and consequently the contact pressure distribution. For this reason, a comparison between a mechanical analysis and a thermo-mechanical analysis has been performed. The outcomes of this study provide useful references to control engineers and designers aiming at improving dry-clutch transmissions performances.
THERMO-MECHANICAL TRANSIENT ANALYSIS IN AUTOMOTIVE DRY-CLUTCH
A. SenatoreWriting – Review & Editing
;V. D’AgostinoWriting – Review & Editing
;M. Pisaturo
Investigation
2017-01-01
Abstract
The tribological contact under sliding condition in dry clutch facing surfaces during the engagement manoeuvre is strongly affected by contact pressure distribution, friction coefficient, material proprieties, surface roughness, sliding speed, and heat transfer as well. Unfortunately, all these phenomena are intimately coupled to each other. To this aim, finite element analyses have been proposed in this paper to investigate the coupled effects of contact pressure distribution and thermal field in electro-actuated driven system based on single dry clutch. In particular, the results of longitudinal vehicle dynamics have been used in numerical models to better understand how much the temperature rise modifies the mating surfaces and consequently the contact pressure distribution. For this reason, a comparison between a mechanical analysis and a thermo-mechanical analysis has been performed. The outcomes of this study provide useful references to control engineers and designers aiming at improving dry-clutch transmissions performances.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
