Simulation and Experimental Studies on the Temperature Field of a Wet Shift Clutch during One Engagement

Based on the mathematical model of wet clutch engagement, a dynamic model of a tracked vehicle was developed by means of the software Matlab/Simulink. This model can be used to simulate the shift schedule, piston pressure and relative velocity. A two dimensional heat conduction model was also developed with reasonable selection of proper boundary conditions, contact pressure model and heat flux distribution model. Relative partial differential equations were solved by means of the Matlab/PDE package. Simulation results revealed the temperature distribution along the axial direction and radial direction on the sliding interface of between friction lining and separator disc. A test bench was designed to measure the temperature distribution along the radial direction on the separator disc. The experiment results proved the reliability of the simulation model. The simulation model provided a good engineering tool for optimization design of wet shift clutch.