Friction torque for roller-sliding bearing based on ADAMS

LU Li-ming, LI Fu, LI Zhong-hao
(College of Mechanical and Electrical Engineering, East China Jiao Tong University, Nanchang 330013, China)

Abstract: Aiming at the problem that the friction torque of the bearingwas large, very easy to heat and be worn down,resulting in a greatly reduced service life in the case of high speed and heavy load, based on the principle of bearing friction torque measurement, the friction torque mathematical model of rollersliding bearing was established. Based on this, the dynamic simulation model of roller bearing was established by using ADAMS software. Considering the fluctuation of friction torque, the variation law was analyzed and the extraction method of starting friction torque and dynamic friction torque of rollersliding bearing was given. The effects of radial load, speed, clearance between roller and slider and radial clearance on friction torque were studied. The correctness of the simulation model was verified by SKF bearing friction torque calculator. The results indicate that the structural parameters of four different working conditions have a certain influence on the starting friction torque and the dynamic friction torque of the roller bearing, providing a reference for the design of reducing friction torque of the roller bearing.
Key words: rolling-sliding bearing; friction torque; ADAMS; dynamics