Mechanical Systems and Signal Processing vol:60-61 pages:420-436
In recent years, there has been a significant increase in the usage of wet-friction clutches. Presently, researchers across the globe are engaged in improving the performance and lifetime of clutches through testing and simulation. To understand the clutch vibrational and dynamical behavior, SAE#2 test set-up mathematical model based on extended Reset-Integrator friction model is developed. In order to take into account the different phases of fluid lubrication during engagement, the model includes the experimentally determined Stribeck function. The model also considers the viscous effect and the delay in actuation pressure signal. The model is validated in both time and frequency domains against the experiments performed on the SAE#2 test set-up. In addition, by analyzing the sets of experimental results, it is confirmed that the amplitude of Shudder vibration is independent of the amplitude of contact pressure fluctuation.