Analysis of Vehicle-Pavement Interaction Due to Roughness

• Main Authors: Yi-Hong Zhou, 周鎰鋐
• Other Authors: Chen-Ming Kuo
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/15425138109372064531

碩士 === 國立成功大學 === 土木工程學系碩博士班 === 91 === Dynamic load is the most important factor for stress prediction and life assessment of pavements. The dynamic effect cannot be resolved with either isolated pavement system or vehicle kinematic formation because vehicles and pavements are coupled as an interaction system. This article describes simulation of the coupled system and analysis of the impact force associated by moving vehicle and pavement roughness. A quarter-car model was built with a linear spring and a mass element as half of wheel axle, and a spring-dashpot system as vehicle suspension connecting the lumped car mass and the wheel axle. The concrete pavement was composed of 20-node brick elements resting on springs and dashpots. The pavement elevation was input according to sinusoidal curve to simulate surface irregularities. The model was successfully validated with theoretical solutions and was further expanded to a S122 tractor-trailer model. The dynamic effect and coupled interaction were thoughtfully discussed. Keyword: ABAQUS, vehicle-road interaction, dynamic load, rigid pavement, finite element.