| 轿车系统的模拟装置与动态分析 |
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| 引用本文： | 杨咸启,杨琪,鲍婕.轿车系统的模拟装置与动态分析[J].黄山高等专科学校学报,2014(3):24-26. |
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| 作者姓名： | 杨咸启 杨琪 鲍婕 |
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| 作者单位： | 黄山学院机电工程学院,安徽黄山245041 |
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| 基金项目： | 安徽省教育厅自然科学研究项目（KJ2013B267）;黄山学院自然科学研究项目（2011YYKC10） |
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| 摘 要： | 对汽车垂直方向振动的分析,对汽车的元件进行合理的简化,建立8自由度动力学模型,给出了模型的质量矩阵、刚度矩阵和阻尼矩阵.根据实际的车型,按比例缩小设计出汽车的振动模拟装置.然后通过凸轮实现路面的模拟输入,利用空气弹簧模拟汽车的内部弹簧元件.根据系统的拉格朗日方程,求解系统8自由度动力学运动微分方程,采用龙格-库塔（Runge-Kutta）法,在Matlab的环境下进行汽车运动求解,得到汽车在不同路面行驶的振动规律.
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| 关 键 词： | 汽车动力学模型 路面随机函数 汽车悬挂系统 |
The Simulation Device and Dynamic Analysis of Automotive System |
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| Authors: | Yang Xianqi Yang Qi Bao Jie |
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| Institution: | (School of Electromechanical Engineering, Huangshan University, Huangshan 245041, China) |
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| Abstract: | Through an analysis of the vibration in vertical direction, the parts of an automobile are simplified reasonably, a dynamic model with eight degrees of freedom is established, and the mass matrix, stiffness matrix and damping matrix of the model are given. According to the actual vehicle model, a scaled down simulation device of automobile vibration is designed. And then the stimulation input of road is gotten through the cam surface, and the internal vehicle spring elements are simulated using air spring. Based on the Lagrange equations of the system, the dynamical motion differential equation of the system with eight degrees of freedom is solved. Using the Runge Kutta （Runge-Kutta） method, the vehicle movement is solved in Matlab environment, and then the vibration law of vehicle driving on different pavements is gotten. |
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| Keywords: | vehicle dynamics model road random function automobile suspension system |
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