Evaluation method of pavement roughness based on 5-DOF human-vehicle-road vibration model
Evaluation method of pavement roughness based on 5-DOF human-vehicle-road vibration model
复制标题
基于五自由度人-车-路振动模型的路面粗糙度评价方法
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Yang, Wan-Qiao
中科院分区：
文献类型：
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作者：
Zhang, Hong-Liang;Yang, Wan-Qiao
为了评价路面的平顺性，采用传递矩阵法分析了人-车-路相互作用，采用乘客垂直加权均方根加速度作为路面平整度的评价指标，采用五自由度振动模型，考虑了车辆与道路的耦合作用。讨论了行驶速度、车身转动惯量、座椅弹性常数和阻尼常数、轮胎弹性常数对平顺性的影响，提出了基于人-车-路相互作用的路面平整度评价方法，并给出了算例。对A、B、B级路面的均方根加速度进行了计算。C和D分别为0.381、0.7963、1.232 0和2.970 6 m·S-2，评价结果与主观评价值基本一致。与现有路面平整度评价方法相比，该评价方法考虑了路面类型和车速的影响，反映了车辆旋转的影响，能较好地评价货车的乘坐舒适性。
To evaluate the riding comfort of pavement,human-vehicle-road interaction was analyzed by using transfer matrix method,in which the vertical weighted root-mean-square(RMS)acceleration of passenger was adopted as the evaluation index of pavement roughness,a 5-DOF vibration model was used,and the coupled interaction between vehicle and road was considered.The effects of running speed,rotary inertia of vehicle body,spring constant and damping constant of seat,and spring constant of tire on RMS were discussed,an evaluation method of pavement roughness based on human-vehicle-road interaction was proposed and an example was given.The RMS accelerations of the pavements graded A,B,C and D were 0.381 2,0.796 3,1.232 0 and 2.970 6 m·s-2 respectively,and the ratings of riding comfort of the pavements were correspondent with their subjective ratings.Compared with the existing evaluation methods of pavement roughness,the evaluation method considers the impacts of pavement types and vehicle speeds,reflects the impact of rotating of vehicle,and can evaluate the riding comfort of truck.9 tabs,1 fig,20 refs.