Open AccessCharacteristics of a Tire Friction and Performances of a Braking in a High Speed Driving
Author(s) -
Oh Yumrak,
Lee Hoguen
Publication year - 2014
Publication title -
advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
ISSN - 1687-8132
DOI - 10.1155/2014/260428
Subject(s) - braking distance , skid (aerodynamics) , automotive engineering , road surface , friction coefficient , threshold braking , rolling resistance , coefficient of friction , exponential function , surface roughness , engineering , structural engineering , control theory (sociology) , computer science , mathematics , retarder , materials science , brake , control (management) , mathematical analysis , civil engineering , artificial intelligence , composite material
The goal of pavement is to deliver the fine roughness and the safe road surface to traffic. It requires a secured and comfortable surface using the controlled speed of road. Through adjusting driving speed, skid resistance can be altered in one of the performances of the pavement surface. In high speed driving, there might be a certain level of risk, not in the same level as the proposed roads. Hence, this study first analyzes the speed equation under a consideration of a braking distance and then suggests the friction coefficient in high speed driving with the principle of conservation of energy. If we accept simply that the coefficient of friction is independent of speed, the difference between analysis and test value for braking distance is greatly generated. Therefore we have to analyze the coefficient of friction as an exponential function of braking speed of a vehicle.
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