Experiment　and Study on Friction Characteristics of a PaperBased Friction Material in Wet Multiple Disc Brakes

The performance of paperbased friction material in a wet multiple disc brake is greatly influenced by working conditions. In this paper, the effects of several major factors，such as the plate temperature， speed，lining pressure and the interactions among the factors were investigated in orthogonal experiment using an inertia dynamometer． The regression equation on average friction coefficient was derived． It provides a theoretical basis for designing a new wet multiple disc brake.