Rolling resistance is the of a wheel that will roll or rotate due to friction between outer surface and track surface. This study aims determine effect tread patterns on coefficient rolling resistance. The tires be used in this are hard compounds with ratio pattern raised by 2 mm tire hardness 79.5 Ha, using pressure variations at 30 Psi, 40 50 Psi. Coefficient value 1.39% 8.05 N. These results...

Most of previous studies employed dynamic stability test and Hamburg wheel tracking to investigate permanent deformation characteristics asphalt concrete (AC) layer. However, the performance only focuses on surface course neglected influence middle layer base course. The present study investigates four (4) different configurations flexible pavement analyzes contribution AC total as response var...

To study the method of reducing low-frequency vibration noise tires, a passenger car tire (205/55R16) is taken as research object. The dynamic grounding characteristics and reduction mechanism cat’s paw pad are analysed. showed that swing deformation pads during walking process cats one main ways to reduce impact from ground achieve silencing. analyse influence on noise, divided into five areas...

Abstract In this study, we aimed to develop a new method for measuring tire-wear particles of less than 2.5 μm generated from vehicle use. We also devise evaluating the emission factor particles. To an evaluation particles, examined several factors, such as how tire components in airborne collected on sampling filter were measured, comparison obtained laboratory study and on-road using test veh...

Abstract The current research of tire aerodynamics mainly focus on the isolated and simplified tread tire. Compared with real complex pattern tire, structure deformed profile a loaded has greatly influence aerodynamic drag. However, mechanisms tires different patterns effects drag are subjects worthy discussion. purpose this study is to experimentally computationally investigate characteristics...

The vibration control of a construction vehicle must be carried out in order to meet the aims of sustainable environmental development and to avoid the potential human health hazards. In this paper, based on market feedback, the driver seat vibration of a type of wheel loader in the left and right direction, is found to be significant over a certain speed range. In order to find abnormal vibrat...

In this paper, validation of a model for the speed dependency of friction is presented. Based on the shape of the friction – speed curve, the model assumes that calculation of friction at any speed would need an estimate of friction at very low speed, and the knowledge of its variation with speed described by the Stribeck curve. Two existing models developed at LCPC are then coupled to predict ...