论文部分内容阅读
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。
The combination of heat transfer theory and finite element method makes it easy for many commercial finite element softwares to simulate the temperature field distribution of asphalt concrete pavement. In order to describe the process of the finite element simulation of road surface temperature in detail, the two-dimensional multi-layer pavement structure is taken as a model and two common finite element softwares ANSYS and ABAQUS are respectively used to simulate and calculate the temperature field of the pavement under two loading modes. The results show that ABAQUS is more suitable than ANSYS to simulate the temperature field distribution of the pavement. Compared with the measured data, it is concluded that the ABAQUS calculated by the radiation and convection independent loading mode is closer to the actual pavement temperature distribution.