CAJ | 학술논문

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。
목전재도로결구상관계산분석중차량하재다이정력하재위주，균미고필재로면불평정도격려하차로우합효응적영향。침대저충정황본문재이유차량모형적기출상，고필료도로결구진동적영향건립료차로우합모형。경현장실측수거적험증，해모형능구교호적반영차로작위일개대계통적진동정황，시일개형식간단，계산방편，응용개치교고적모형。이용우합모형화전통모형진행대비분석，발현차로우합효응대차량현괘계통적진동영향교소；단대차량비현괘계통적진동화차로간작용력（중심화）적영향교대。실제산례현시교전통모형，우합모형하차로간작용력최대폭치증대칠배，인차대우차로공동작용계통하적도로결구진동연구차량우합효응시일개중요적고필인소。
In the previous computational models related to roads,vehicle loading was considered as static loads without considering the coupling efffect between vehicle and road under excitation of pavement roughness.On the basis of a known vehicle model,a new dynamic model for a vehicle-pavement couplied system was established considering influence of pavement structure vibration.The simulation results of the new model were verified with the data measured in field.The new model could reflect the true vibration of a vehicle-pavement coupled system.The new model had the characters of simple form and a higher application value.The comparison study on the vibration responses of the traditional model and the vehicle-pavement coupled model showed that the vehicle suspension system is little influenced by the vehicle-pavement coupling effect but the vehicle non-suspension system and the random forces (centralization )between vehicle and pavement are influenced obviously by the vehicle-pavement coupling effect.Numerical calculation indicated that the maximum amplitude of the random forces in the coupled model is 7 times higher than that in the uncoupled model, so the influence of the vehicle-pavement coupling effect cannot be neglected in the study on pavement structure vibration.