| 基于路面随机激励的8自由度整车动力学仿真 |
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| 引用本文： | 方浩,李晓宾,王璐,谢能刚.基于路面随机激励的8自由度整车动力学仿真[J].中国工程机械学报,2007,5(2):167-173. |
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| 作者姓名： | 方浩 李晓宾 王璐 谢能刚 |
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| 作者单位： | 1. 安徽工业大学,机械工程学院,安徽,马鞍山,243000
2. 马鞍山钢铁股份有限公司,安徽,马鞍山,243000 |
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| 基金项目： | 安徽省高校省级自然科学重点基金 |
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| 摘 要： | 建立包括6个垂直跳动和2个转动的整车8自由度动力学模型,应用拉格朗日原理建立各自由度动力学方程,采用振型叠加法进行求解.针对一整车模型实例,以随机输入模拟路面激励,应用Fortran语言编制程序进行动力学仿真,计算分析了整车的8阶自振特性以及各个自由度的动力特性,通过位移响应曲线评价了汽车运动时的平顺性.
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| 关 键 词： | 汽车 悬架 动力学仿真 8自由度 随机激励 |
| 文章编号： | 1672-5581(2007)02-0167-07 |
Dynamical simulation of 8-DOF vehicle suspension based on stochastic road surface excitation |
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| FANG Hao,LI Xiao-bin,WANG Lu,XIE Neng-gang.Dynamical simulation of 8-DOF vehicle suspension based on stochastic road surface excitation[J].Chinese Journal of Construction Machinery,2007,5(2):167-173. |
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| Authors: | FANG Hao LI Xiao-bin WANG Lu XIE Neng-gang |
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| Abstract: | In this study, an eight degree-of-freedom (8-DOF) model, which includes 6 perpendicular and 2 rotary freedoms, is developed for suspension systems of a vehicle. In this respect, the dynamical equations, which are solved using an accumulative method for vibratory waveforms, are established based on the Lagrange function. Though stochastic road surface excitation testing, the dynamic simulation, together with the 8-DOF vibratory and dynamical properties, is attained using FortranTM. Furthermore, the riding comfort is evaluated via displacement response curves. |
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| Keywords: | vehicle suspension dynamical simulation 8-degree of freedom stochastic excitation |
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