Analysis of the Dynamic Performance of an Engine Front-End Accessory Drive System with an Asymmetric Damping Tensioner 2020-01-0409
The automatic tensioner is an important component of the engine front-end accessory drive system (EFEADS)，It maintains the tension of the belt steadily and reduces the slip of pulley, which is benefit for improving the life of V-ribbed belt. In this paper, an EFEADS model is established which is considering with the hysteresis characteristics and the asymmetry of friction damping of a tensioner. An EFEADS is taken as a study subject. The dynamic responses of system, such as the oscillation angle of each pulley, the slip factor of pulley, the oscillation of tensioner arm and the dynamic belt tension are analyzed with symmetric damping and asymmetric damping tensioner. Meanwhile, the influence law of asymmetric damping factors of tensioner on the dynamic response of EFEADS is also investigated. The experimental results show that tensioner with an asymmetric damping can effectively reduce the oscillation angle of each pulley and the oscillation of tensioner arm, and the fluctuation of dynamic belt tension.
Bo Zhou, Wen-Bin Shangguan, Shangbin Long, Yi Sun, Weijun Zhao
South China University of Technology, Ningbo Fengmao Far-East Rubber Co., Ltd.