| 越野车辆机动性研究 |
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| 引用本文： | 韩愈,孟广伟,黄朝胜,门玉琢.越野车辆机动性研究[J].振动与冲击,2015,34(2):96-100. |
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| 作者姓名： | 韩愈 孟广伟 黄朝胜 门玉琢 |
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| 作者单位： | 1. 吉林大学 机械科学与工程学院 长春 130025； 2. 中国第一汽车股份有限公司 技术中心 长春 130011；3. 长春工程学院 机电工程学院 长春 130012 |
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| 摘 要： | 为研究越野车辆行驶在不平路段机动性问题,通过偏频试验识别车辆部分特征参数,测量试验车辆悬架位移,计算行驶路段路面不平度,监测驾驶员座椅Z加速度在不平试验路段时序信号,据人体疲劳特性计算人体吸入功率,并建立"人体-车身-车轮"三自由度振动模型;用傅里叶逆变换生成不平路段的时序信号作为仿真输入,利用Simulink仿真试验车辆驾驶员座椅Z向加速度在不平路段的时序信号;提出人体吸入功率为6 W时对应的车速作为评判越野车在不平路段的机动性能。
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| 关 键 词： | 车辆机动性 路面不平度 偏频试验 动力学仿真 |
Mobility of off-road vehicle |
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| HAN Yu,MENG Guang-wei,HUANG Chao-sheng,MEN Yu-zhuo.Mobility of off-road vehicle[J].Journal of Vibration and Shock,2015,34(2):96-100. |
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| Authors: | HAN Yu MENG Guang-wei HUANG Chao-sheng MEN Yu-zhuo |
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| Affiliation: | 1. School of Mechanical Science and Engineering,, Jilin University, Changchun 130025，China；2. China FAW Group Corporation R&D Center, Changchun 130011，China；3. School of Mechatronics Engineering, Changchun Institute of Technology, Changchun 130012，China |
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| Abstract: | The problem of the mobility of the off-road vehicle over the roughness roads is studied. The vehicle model parameters is gain by the frequency offset tests. The road roughness is tested by testing the suspension displacement. The driver’s vertical acceleration sequence signal on the roughness roads is acquired. The absorbed power is calculated based on human tolerance limit. The ‘human-vehicle body-wheel’, three-degrees-of-freedom vibration model is built. And road roughness sequence signals by the inverse Fourier transform is worked out, which is the input of the simulation. Then the driver’s vertical acceleration sequence signal on the roughness roads is simulated utilizing the Simulink software. The speed at six-watts of absorbed power shows the mobility of the off-road vehicle passing through the roughness roads.
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| Keywords: | vehicle mobility road roughness frequency offset test dynamics simulation |
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