| 基于轮胎与地面接触模型的非公路车辆平顺性 |
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| 引用本文： | 孙蓓蓓,张晓阳,王戬,孙庆鸿. 基于轮胎与地面接触模型的非公路车辆平顺性[J]. 东南大学学报(自然科学版), 2006, 36(6): 937-940 |
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| 作者姓名： | 孙蓓蓓 张晓阳 王戬 孙庆鸿 |
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| 作者单位： | 东南大学机械工程学院,南京,211189;东南大学机械工程学院,南京,211189;东南大学机械工程学院,南京,211189;东南大学机械工程学院,南京,211189 |
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| 基金项目： | 国家自然科学基金资助项目（50575040）. |
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| 摘 要： | 为了准确地预测和评价非公路车辆的行驶平顺性,通过分析轮胎与地面的相互作用,建立了弹性轮胎-软地面接触模型及其与车辆的集成模型,采用Matlab语言编制出仿真分析软件,得到了变形地面作用于车辆的有效路谱及车身垂向加速度、悬架动挠度、轮胎动载等反映车辆行驶平顺性的评价指标.仿真结果表明,随着地面变形的变大,车辆的低频激励增大,车身的振幅也随之增大.在建立非公路车辆悬架的动力学模型时地面变形的影响不容忽视.
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| 关 键 词： | 变形地面 平顺性 有效路谱 悬架 轮胎 |
| 文章编号： | 1001-0505（2006）06-0937-04 |
| 收稿时间： | 2006-06-14 |
| 修稿时间： | 2006-06-14 |
Ride comfort of off-road vehicle based on tire-terrain interaction model |
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| Sun Beibei,Zhang Xiaoyang,Wang Jian,Sun Qinghong. Ride comfort of off-road vehicle based on tire-terrain interaction model[J]. Journal of Southeast University(Natural Science Edition), 2006, 36(6): 937-940 |
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| Authors: | Sun Beibei Zhang Xiaoyang Wang Jian Sun Qinghong |
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| Affiliation: | School of Mechanical Engineering, Southeast University, Nanjing 211189, China |
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| Abstract: | An elastic tire-soft terrain interaction model integrated with the vehicle model is established based on the interaction forces analysis between tire and terrain.The simulation software was written by using the Matlab language.The effective road spectrum that deformable terrain acted on the vehicle system,as well as the evaluation indexes of ride comfort such as body acceleration,suspension dynamic flexible deformation and tire dynamic load were obtained.The simulation results show that as terrain deformation increases the amplitude of low frequency vibration of the vehicle increases greatly,and this influence cannot be neglected in the dynamic modeling of suspension system of off-road vehicle. |
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| Keywords: | deformable terrain ride comfort effective road spectrum suspension tire |
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