Effect of different sliding conditions on interface tribological behavior of friction torque limiter

Abstract

The effects of sliding conditions on the sliding torque, surface temperature and friction wear characteristics of friction torque limiter (FTL) were studied based on a self-made transmission test rig. The results show that the effect of loading pressure on the wear loss is higher than that on the temperature rise, and the sliding speed is the opposite. During the sliding process, the friction coefficient of the friction pair increases and then decreases, and the sliding torque appears attenuation effect. The increase of loading pressure and sliding speed significantly increases the interface temperature rise, changing the interface contact state, aggravates the interface wear, and leads to more obvious sliding torque attenuation effect, which seriously affects the working performance of the FTL.