The impact of contact pressure and road surface character to sliding friction coefficient

Abstract

A improved sliding friction coefficient model is presented based on road surface character and rubber character to analyze how the road character, tire and contact pressure affect the sliding friction coefficient. Improved the sliding friction coefficient model by introducing the theory of true contact with rough road and combined with the simplified rubber viscosity. Verifying the efficiency of the improved model through comparison with the dynamic friction coefficient of Savkoor. Analyzed the impact of contact pressure to the actual contact area and the contact pressure, and how tire and road surface character influence the sliding friction coefficient. The simulation result shows that the improved model can precisely analyze the impact of contact pressure,road surface character and tire to the sliding friction coefficient.