Abstract
The influence of frictional facing thickness on the contact pressure distribution of multi-disc dry clutches
Highlights
Friction clutch is an essential machine element which is used widely in the automotive applications
The effect of the frictional facing thickness on the mag– nitude and distribution of contact pressure that occurs on the surfaces of friction discs of a friction clutch system has been investigated
The most important point observed from the results is that the reduction in the frictional facing thickness causes increasing in the contact pressure values
Summary
Frictional heat is generated when the clutch starts to engag. As a result of this operation the surface temperature is increased rapidly due to the difference in speed between the driving and driven parts. The influence of the thickness of frictional facing on the distribution of the contact pressure of the multi-disc clutches has been investigated using a numerical approach (the finite element method). The analysis of contact problem has been carried out for a multiple disc dry clutch (piston, clutch discs, separators and pressure plate). The results present the distribution of the contact pressure on all tShe surfaces of friction discs that existed in the friction clutch system. Thickness of the frictional facing of a clutch disc is a significant parameter that affects the elastic and thermal behaviors of a dry friction clutch. The results proved that the magnitudes of the contact pressure are increased dramatically when the thickness of the friction facing decreases. Keyword: Contact analysis, dry friction clutches, finite element analysis
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