| 矿用电动轮自卸车四自由度模型的平顺性仿真分析 |
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| 引用本文： | 李晓豁,张永胜.矿用电动轮自卸车四自由度模型的平顺性仿真分析[J].中国工程机械学报,2009,7(4). |
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| 作者姓名： | 李晓豁 张永胜 |
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| 作者单位： | 辽宁工程技术大学,机械工程学院,辽宁,阜新,123000 |
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| 摘 要： | 为研究矿用电动轮自卸车的平顺性,建立了包括人体(驾驶员)模型在内的矿用电动轮自卸车四自由度平顺性系统模型.以前后桥的加速度信号为输入,输出是人体垂直方向加速度.利用MATLAB/Simulink对某大型矿用电动轮自卸车的平顺性进行仿真分析,结果表明:人体的频率主要集中在20～30Hz范围内,振动强度处于0～0.6m.s-2的范围,若前后悬架刚度降低20%,人体最大加速度减小至0.3m.s-2,功率谱密度响应能量降低一半,最大响应对应的频率也稍有减小,能改善车辆的平顺性.
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| 关 键 词： | 矿用电动轮自卸车 平顺性 数学模型 仿真分析 |
Driving comfortableness simulation and analysis on four degrees of freedom model for electric-wheel mining dump trucks |
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| LI Xiao-huo,ZHANG Yong-sheng.Driving comfortableness simulation and analysis on four degrees of freedom model for electric-wheel mining dump trucks[J].Chinese Journal of Construction Machinery,2009,7(4). |
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| Authors: | LI Xiao-huo ZHANG Yong-sheng |
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| Affiliation: | LI Xiao-huo; ZHANG Yong-sheng(College of Mechanical Engineering; Liaoning Technical University; Liaoning 123000; China); |
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| Abstract: | In order to evaluate the driving comfortableness of electric-wheel mining dump trucks,the driver-body system model is established based on four degrees of freedom.In this model,the acceleration signals of the front and rear axles are used as the input,whereas the acceleration signal perpendicular to the body is used as the output.By using MATLABSimulinkTM,the driving comfortableness of a specific large-size electric-wheel mining dump truck is simulated.To this end,it can be found from results that the body ... |
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| Keywords: | electric-wheel mining dump truck driving comfortableness simulation |
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