轮胎-沥青路面接触效应数值分析  

Numerical Analysis on Contact Effect of Tire-Asphalt Pavement Structure

作　　者：郭红兵[1,2] 王宁[3] 吕光印[1,4] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]陕西交通职业技术学院公路工程系,陕西西安710018 [3]深圳市城市规划设计研究院,广东深圳518034 [4]中国民用航空深圳安全监督管理局,广东深圳518128

出　　处：《郑州大学学报（工学版）》2011年第1期34-37,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：国家西部交通建设科技计划资助项目(200631800005)

摘　　要：针对轮胎-沥青路面接触效应问题,传统的基于多层弹性理论的双圆简化模式的分析精度十分有限.为分析轮胎-沥青路面结构的实际接触效应,通过三维有限元数值方法,分析了一种典型沥青路面结构在非均布轮胎-路面三向接地压力作用下的Mises应力、剪应力和拉应力.研究表明,在非均布轮胎-路面三向接地压力作用下,该典型沥青路面结构在轮胎边缘处存在较高水平的剪切应变能和较大的剪应力,在轮胎横向5个矩形接触区域内明显存在5个拉应力峰值,与圆形均布荷1载作用下的力学响应存在很大差别.According to the problem of the contact effect of tire-asphalt pavement structure,the analysis accuracy of the simplified two-round model based on the traditional multi-layer elastic theory is very limited.In order to analyze the practical contact effect of tire-asphalt pavement structure,by using of the 3-D finite element method,under the action of non-uniform 3-D load,mises stress,shear stress and tensile stress of a typical asphalt pavement structure has been analyzed.The results show that,under the action of non-uniform 3-D load,there are a high level of shear strain energy and greater shear stress in the tire edge of the typical asphalt pavement structure,there are five peaks of tension stress in the transverse five rectangular contact area of the tire-asphalt pavement structure,its mechanical response is very different from that of the round uniform load.

关 键 词：道路工程 接触效应 三维有限元 车辆荷载应力 接地面形状 三向接地压力 

分 类 号：U416.224[交通运输工程—道路与铁道工程]