摘要
传热学理论与有限元思想的结合,使得许多商业有限元软件易于实现对沥青混凝土路面温度场分布的模拟计算。为详细说明有限元模拟路面温度场过程,以二维多层路面结构为模型,分别借助ANSYS及ABAQUS两大通用有限元软件,模拟计算两种荷载实现方式下的路面温度场。研究表明,ABAQUS较ANSYS更适合模拟计算路面温度场分布;计算结果与温度实测数据比较,认为辐射、对流独立加载方式下的ABAQUS模拟计算值更接近路面实际温度分布。
Combination of finite element ideas and heat transfer theory make it possible to use com- mercial finite element software to realize the simulation of asphalt concrete pavement structure temperature distribution. In order to detail the finite element simulation of pavement temperature field distribution, two two-dimensional multi-layered pavement structure models are constructed respectively using two general finite element softwares, ANSYS and ABAQUS. Pavement temperature field distribution results are ob- tained under two different loading conditions. Results suggest that ABAQUS loading mode is more suitable in temperature gradient simulation when compared with ANSYS. Contrast between the two simulation results and the actual testing result shows that ABAQUS calculation results are more accurate, in which radiation and convection are loaded separately.
出处
《公路》
北大核心
2013年第7期38-42,共5页
Highway
基金
河北省交通科技项目
项目编号Y-2010090
关键词
道路工程
沥青混凝土路面
有限元
温度场
热物理参数
rood engineering
asphalt concrete pavement
finite element
temperature field
thermal physical parameters
