An improved method for evaluating the rotational speed stability of a hydro-viscous clutch in mixed lubrication

作     者：Shou-Wen YAO Qian LIU Hong-Wei CUI Shan-Shan FENG 

作者机构：School of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081China National Key Laboratory of Vehicular TransmissionBeijing Institute of TechnologyBeijing 100081China School of Mechanical EngineeringTaiyuan University of TechnologyTaiyuan 030024China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2015年第3卷第1期

页      面：47-55页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：supported by National Natural Science Foundation of China(Grant No.51275039) Tribology Science Fund of the State Key Laboratory of Tribology(Grant No.SKLTKF13B01) 

主　　题：Hydro-viscous clutch mixed lubrication speed stability negative gradient of friction coefficient-slipping speed torsional vibration model critical negative gradient 

摘      要：Rotational speed stability is an important evaluation indicator of the performance of a hydro-viscous clutch(HVC).To improve the rotational speed stability of HVCs in mixed lubrication and the running condition of the friction pairs,the speed stability of an HVC in mixed lubrication was *** this end,the friction coefficients of both copper-based and paper-based friction pairs were experimentally tested using an MM1000-III wet friction ***,a torsional vibration model of the system is *** phase plane analysis method is applied to evaluate the stability of the torsional vibration model,where a critical negative gradient(CNG)is *** results show that the friction coefficient in mixed lubrication is an important parameter for the stability of the rotational *** system will be unstable when the negative gradient of the friction coefficient-slip speed is larger than the *** to the definition of the CNG,suggestions regarding choice of friction pairs are made to improve the rotational speed stability of an HVC in mixed lubrication.