Affiliation:
1. Carbon/Carbon Composites Research Center, National Key Laboratory of Thermostructure Composite Materials, Northwestern Polytechnical University, Xi’an 710072, P.R.C.
Abstract
Carbon-fiber-reinforced paper-based friction material (CFRPF), as a new type of wet friction material for automatic transmission, was prepared by a paper-making process. The frictional response of CFRPF is highly complex under a set of dynamically variable operating conditions. To better understand the effect of operating factors (braking pressure, rotating speed, oil temperature, and oil flow rate) on friction stability of the material, tests were carried out using a single ingredient experiment and the Taguchi method. Experimental results show that the braking stability and the dynamic friction coefficient (μd) decrease as braking pressure, rotating speed, oil temperature, and oil flow rate increase. The influence of braking pressure on μd is largest among the four operating factors. μd declines gradually during the first 3000 repeated braking cycles and changes very little subsequently due to the surface topography change in friction material.
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials
Reference19 articles.
1. Effect of Visco-Elastic Property on Friction Characteristics of Paper-Based Friction Materials for Oil Immersed Clutches;Miyazaki;ASME J. Tribol.
2. New Materials in Automotive Tribology;Enomoto;Tribol. Lett.
3. Prediction of Torque Response During the Engagement of Wet Friction Clutch;Yang;SAE Tech. Pap. Ser.
4. Brake and Clutch Emissions Generated During Vehicle Operation;Jacko;SAE Trans.
5. Dowell, R. E., and Csarny, T. F., 2001, “High Energy Friction Product,” U.S. Patent No. 6,277,769.
Cited by
42 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献