| 面向越野通过性虚拟试验的有限元轮胎模型 |
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| 引用本文： | 庞罕,张为公,王霞.面向越野通过性虚拟试验的有限元轮胎模型[J].东南大学学报,2007,23(4):540-544. |
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| 作者姓名： | 庞罕 张为公 王霞 |
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| 作者单位： | 东南大学仪器科学与工程学院 南京210096(庞罕，张为公)，泰山学院计算机系 泰安271000(王霞) |
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| 摘 要： | 为了评价越野车辆通过性能力,分析了胎压与轮胎刚度之间的线性关系和轮胎材料的粘弹性特性对轮胎垂向力分布的影响,提出了用系数修正胎压对刚度和有效接地面积影响提高精度的方法.推导了三参数标准线性粘弹性模型的本构关系,得到了四节点等参单元有限元的刚度矩阵,建立了轮胎平面应力状态下的有限元模型.以轮胎六分力传感器为核心构建了轮胎模型的标定和验证系统,通过试验测得了不同车速工况下的车轮垂向力.试验结果验证了所提出的轮胎模型的正确性.
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| 关 键 词： | 通过性 轮胎模型 粘弹性 六分轮力传感器 |
| 收稿时间： | 2007-05-22 |
| 修稿时间： | 2007年5月22日 |
FEM tire model oriented to virtual experiment of off-road vehicle trafficability |
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| Pang Han,Zhang Weigong,Wang Xia.FEM tire model oriented to virtual experiment of off-road vehicle trafficability[J].Journal of Southeast University(English Edition),2007,23(4):540-544. |
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| Authors: | Pang Han Zhang Weigong Wang Xia |
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| Institution: | 1, School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China;2,Department of the Computer, Taishan University, Taian 271000, China |
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| Abstract: | In order to estimate the trafficability of off-road vehicles, the linear relationships between the pressure and the stiffness of the tire and the action of the vertical tire force with the viscoelasticity are analyzed. The method to improve the precision of the model by the coefficients is presented. The constitutive equation of the three-parameter linear model and the stiffness matrix of four-node isoparametric elements are derived to construct the FEM (finite element method) tire model in plan stress. A demarcation and verification system is designed based on the six-dimensional wheel force transducer and the vertical tire force is measured under different velocities. The results show that the model and the method proposed are reasonable. |
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| Keywords: | trafficability tire model viscoelasticity six-dimensional wheel force transducer |
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