| 汽车转弯高维非线性动力学特性研究 |
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| 引用本文： | 王威,李瑰贤,宋玉玲.汽车转弯高维非线性动力学特性研究[J].哈尔滨工程大学学报,2009,30(6). |
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| 作者姓名： | 王威 李瑰贤 宋玉玲 |
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| 作者单位： | 1. 哈尔滨工业大学,机电工程学院,黑龙江,哈尔滨,150001
2. 哈尔滨北方特种车辆制造有限公司,黑龙江,哈尔滨,150056 |
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| 基金项目： | 高等学校学科创新引智计划 |
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| 摘 要： | 车辆的转弯动力学特性是衡量车辆机动性能好坏的一个重要标准.通过建立汽车高维非线性动力学仿真模型,分析了悬架参数与轮胎参数对系统非线性动力学特性的影响,深入研究了车辆在特定转向角输入条件下的转弯非线性动力学响应;对四轮在不同扭矩作用下车辆的转弯机动性进行了对比分析;引入LuGre模型,充分考虑了轮胎的非线性特性,悬架单元采用绝对值型非线性弹性力与分段线性阻尼力,详细计算了车辆转弯时滚转角加速度、偏航角加速度、车体质心加速度、轮胎摩擦力的变化规律,应用Matlab6.5得到了具体的仿真结果;对确定车辆的横向动力学控制、转弯动力学性能预测及轮胎的磨损程度预测具有一定的指导意义.
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| 关 键 词： | 汽车动力学建模 转弯非线性动力学 非线性悬架参数 非线性LuGre模型 机动性仿真 |
High-dimensional nonlinear vehicular turning dynamics |
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| WANG Wei,LI Gui-xian,SONG Yu-ling.High-dimensional nonlinear vehicular turning dynamics[J].Journal of Harbin Engineering University,2009,30(6). |
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| Authors: | WANG Wei LI Gui-xian SONG Yu-ling |
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| Affiliation: | 1.School of Mechatronics Engineering;Harbin Institute of Technology;Harbin 150001;China;2.Harbin North Special Vehicle Manufacturing Corporation;Harbin 150056;China |
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| Abstract: | Nonlinear dynamic turning characteristics are regarded as valuable for appraising the capabilities of vehicles.The authors formulated a novel methodolgy for producing their model,and then,through a high-dimensional nonlinear dynamic vehicular simulation,nonlinear dynamic responses were calculated for given turning angles.At the same time,influences on the dynamic model were analyzed by comparing different torsion loads on all four wheels and different parameters of the suspension and tires.The LuGre frictio... |
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| Keywords: | vehicle dynamics modeling turning nonlinear dynamics nonlinear suspension nonlinear LuGre model flexibility simulation |
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