考虑路面不平整度因素的车路耦合振动模型的建立

许海亮;袁勇;屈铁军;唐浚然

振动与冲击 ›› 2014, Vol. 33 ›› Issue (19) : 152-156.

PDF(1249 KB)
PDF(1249 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (19) : 152-156.
论文

考虑路面不平整度因素的车路耦合振动模型的建立

  • 许海亮1 ,袁勇2 ,屈铁军 1, 唐浚然1
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Establishment of a Model of Vehicle-Pavement Coupling System Considering the Pavement Roughness

  • XU Hailiang1, Yuan Yong2, Qu Tiejun1 , TANG Jun-ran1
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摘要

目前在道路结构相关计算分析中车辆荷载多以静力荷载为主,均未考虑在路面不平整度激励下车路耦合效应的影响。针对这种情况本文在已有车辆模型的基础上,考虑了道路结构振动的影响建立了车路耦合模型。经现场实测数据的验证,该模型能够较好的反映车路作为一个大系统的振动情况,是一个形式简单,计算方便,应用价值较高的模型。利用耦合模型和传统模型进行对比分析,发现车路耦合效应对车辆悬挂系统的振动影响较小;但对车辆非悬挂系统的振动和车路间作用力(中心化)的影响较大。实际算例显示较传统模型,耦合模型下车路间作用力最大幅值增大七倍,因此对于车路共同作用系统下的道路结构振动研究车辆耦合效应是一个重要的考虑因素。

Abstract

Most of the previous computational models of the pavement system were main basis on static load and didn’t consider the effect of vehicle-pavement coupling. On the basis of the vehicle model, a new linear elastic model of the vehicle-pavement coupling system was established which includes the vibration response of pavement structure. The results of the new model were verified with the data measured in field and the new model could reflect the true vibration between vehicle and pavement. The new model had the characters of simple form and high application value. The comparison research on vibration responses of traditional model and vehicle-pavement coupling model showed that the vehicle suspension system was little influenced by the vehicle-pavement coupling effect but the vehicle non-suspension system and the random forces(centralization) between vehicle and pavement were influenced largely by the vehicle-pavement coupling effect. Numerical calculation indicated that the maximum amplitude of random forces in coupling model was 7 times higher than that in uncoupling model. So the influence of vehicle-pavement coupling effect cannot be neglected in the study on pavement structure vibration.

关键词

车辆 / 道路 / 耦合系统 / 路面不平整度 / 线性模型

Key words

Vehicle / Pavement / Coupling System / Pavement Roughness / Linear Model

引用本文

导出引用
许海亮;袁勇;屈铁军;唐浚然. 考虑路面不平整度因素的车路耦合振动模型的建立[J]. 振动与冲击, 2014, 33(19): 152-156
XU Hailiang;Yuan Yong;Qu Tiejun;TANG Jun-ran. Establishment of a Model of Vehicle-Pavement Coupling System Considering the Pavement Roughness[J]. Journal of Vibration and Shock, 2014, 33(19): 152-156

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