摘要
轮胎与路面的接地形状呈较明显的矩形,且随着轮胎负荷及胎压的不同,对路面的竖向作用力发生不规则变化,为非均匀分布;当车辆制(启)动时,产生的水平力也应是非均匀分布的.采用三维有限元分析方法,分析了柔性基层和半刚性基层路面结构,在不同的车型荷载及其不同荷载分布情形下力学响应的差异.
The contact shape between tire and road surface issimilar to a rectangle,and the vertical contact stress is changed irregularly and takes on non-uniformly distributed with the different tire load and pressure.On the other hand,when the vehices are broken,the horizontal contact stress must be non-uniformly distributed too. A three dimensional finite element model is used to analyze the difference of the mechanics responseunder different vehices and different level loads in asphalt pavement of simi-rigid base layer and flexible base layer.
出处
《华中科技大学学报（城市科学版）》
CAS
2004年第1期20-24,共5页
Journal of Huazhong University of Science and Technology
关键词
沥青路面
应力响应
非均匀分布
水平力
竖向力
三维有限元
asphalt pavement
mechanics response
non-uniformly distributed
horizontal contact stress
verticalcontact stress
3D finite element method
