31st Annual Meeting and Conference on Tire Science and Technology

The International Exposition (I-X) Center: Cleveland, OH, USA

Tuesday, September 18, 2012: 11:15 AM
Grand Ballroom (The International Exposition (I-X) Center)
Yohei Arata1, Tomoaki Iwai2 and Yutaka Shoukaku2, (1)Tribology laboratory, Division of Mechanical Science and Engineering, Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan, (2)Kanazawa University, School of Mechanical Engineering, College of Science and Engineering, Kanazawa University, Kanazawa, Ishikawa, Japan
In order to evaluate the low fuel consumption, and wear resistance of tire, it is necessary to understand the friction and wear properties of tire tread rubber. The experiments in laboratories often show differences to the results in real driving. It seems that the inconsistency is led by the differences of severities between the laboratory test and real driving. The purpose of the study is to evaluate the wear properties of rolling sliding friction of the rubber specimen at low slip ratio. Experiment is carried out using a rolling drum into contact with a rolling rubber specimen. Abrasive papers were placed on the drum surface in order to assume the surface roughness of the actual road. It is clearly seen that the tangential force coefficient and wear depends heavily on the slip ratio and surface roughness. The protrusion wear marks formed on the rubber surface moved faster as the slip ratio increased.