Contact Analysis of a Dry Friction Clutch System

Abstract

The numerical simulation of the friction clutch system (pressure plate, clutch disc, and flywheel) during the full engagement period (assuming no slipping between contact surfaces) is carried out using finite element method. Two types of load condition considered affect on the clutch elements during the full engagement period are the contact pressure of diaphragm spring and the centrifugal force. The study of the pressure distribution between the contact surfaces and the factors affecting it is one of the fundamentals in the process of designing the friction clutch to obtain accurate estimation of the temperature distribution during the slipping period and the contact stresses during the full engagement period. The investigation covers the effect of the contact stiffness factor FKN on the pressure distribution between contact surfaces, stresses, and penetration. The penalty and augmented Lagrange algorithms have been used to obtain the pressure distribution between contact surfaces. ANSYS13 software has been used to perform the numerical calculation in this paper.

Dry Friction Clutch Disc of an Automobile under Transient Thermal Load: A Comparison of Friction Lining Materials

“…In the present work, it is assumed that because of slipping, the energy due to friction between two sliding surfaces is converted into heat energy at the interface [14]. During slipping, the total heat produced is given as ; 0 ( , ) 0 ;…”

“…[ ( , , ) ]; 0 conv a Q hT r z t T t (13) During launch, the total clutch energy Q produced as shown in Fig. 1 (14) Initially pressure is uniform for new plates. Wear at outer radius will be more and as a result, the shape will be changed and pressure will be redistributed .i.e.…”

Dry Contact and Coupled Thermomechanical Analyses of Brake Disc-Pad using Finite Element Simulation

“…Surface-to-surface contact is most efficient for bodies that experience large values of relative sliding such as a block sliding on a plane or sphere sliding within groove [19]. In this analysis, surface-to-surface contact is used due to larger areas of clutch elements in contact.…”

Numerical Simulation and Mechanism Analysis on the Concave Deformation of Automotive Dry Clutch Pressure Plate

“…Abdullah et al [9] used the thermomechanical coupling method to analyze the radial temperature distribution of the friction surface of the pressure plate under different slipping speeds. Also, Abdullah et al [10] performed the thermal analysis on the flywheel clutch disc, and pointed out that the deformation of pressure plate approximately increases along the radial direction. Wang and Zhang [11,12] conducted numerical simulation of temperature field and thermal stress field under different loading conditions.…”