| 车辆路面计算机仿真系统中的沥青路面应力应变分析 |
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| 引用本文： | 李怀璋,余群. 车辆路面计算机仿真系统中的沥青路面应力应变分析[J]. 农业机械学报, 2001, 32(4): 1-3,10 |
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| 作者姓名： | 李怀璋 余群 |
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| 作者单位： | 中国科学院软件所博士后,;中国农业大学车辆工程学院博士生导师教授, |
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| 基金项目： | 国家自然科学基金资助项目 (项目编号 :5 9875 0 82 ) |
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| 摘 要： | 以半刚性基层沥青路面为对象,研究了路面的应力应变模型和计算方法,通过分析沥青路面层的变形过程,建立了半刚性基层沥青混凝土路面的Vanderpoel粘弹性分析模型。将有限元数值计算方法和粘弹动力学理论有机地结合起来,用于半刚性基层沥青混凝土路面的应力应变分析,通过与传统路面力学的弹性层状体系理论、弹性有限元理论、弹性半空间理论等计算方法的比较,并通过大量足尺路面加载试验,验证了采用该模型和计算方法的有效性。
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| 关 键 词： | 车辆路面系统 计算机仿真 应力分析 |
Stress and Strain Analysis of Asphalt Surface in a Vehicle road Simulation System |
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| Li Huaizhang. Stress and Strain Analysis of Asphalt Surface in a Vehicle road Simulation System[J]. Transactions of the Chinese Society for Agricultural Machinery, 2001, 32(4): 1-3,10 |
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| Authors: | Li Huaizhang |
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| Abstract: | Regarding semi rigid base asphalt concrete road as the main object, the model of road stress and strain and their calculating method were studied in the paper. By analyzing the deformation of asphalt road surface, the Vanderpoel visco elasticity model was built for semi rigid base asphalt concrete road. A finite element numerical calculation method and visco elasticity mechanics were combined to analyze stress and strain of the semi rigid base asphalt concrete road. Compared with the computing model of traditional surface mechanics, such as the multi layer elastic road computing model, the elastic finite element computing method and the elastic semi space theory, it is proved that the model and the computing method were more effective based on large amount of experiments. |
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| Keywords: | Vehicle road system Computerized simulation Stress analysis |
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