CAJ | 학술논문

为准确模拟行驶车辆作用下刚性路面的动力响应，建立车辆-路面空间耦合振动精细化分析模型。车辆采用质点-弹簧-阻尼器空间整车模型，混凝土刚性路面采用弹性地基板有限元模型，采用改进的谐波叠加法考虑路面平整度的三维空间分布，利用车轮和路面的位移协调方程将车辆振动和路面振动联立求解。实例分析表明，所建立的车-路耦合振动模型能够真实地反映车辆和路面间的空间几何耦合关系和力学耦合关系；在三维路面不平度的激励下，车辆和路面的动态响应均表现出明显的空间分布特性；与瞬态动力分析方法相比，利用考虑路面不平度空间分布的车-路耦合振动模型对混凝土路面进行车辆动力响应分析时，路面弯沉和板底应力有明显增大。
위준학모의행사차량작용하강성로면적동력향응，건립차량-로면공간우합진동정세화분석모형。차량채용질점-탄황-조니기공간정차모형，혼응토강성로면채용탄성지기판유한원모형，채용개진적해파첩가법고필로면평정도적삼유공간분포，이용차륜화로면적위이협조방정장차량진동화로면진동련립구해。실례분석표명，소건립적차-로우합진동모형능구진실지반영차량화로면간적공간궤하우합관계화역학우합관계；재삼유로면불평도적격려하，차량화로면적동태향응균표현출명현적공간분포특성；여순태동력분석방법상비，이용고필로면불평도공간분포적차-로우합진동모형대혼응토로면진행차량동력향응분석시，로면만침화판저응력유명현증대。
A fine spatial vehicle-pavement coupling vibration model was established to simulate the dynamic responses of rigid pavement under moving vehicle, in which the mass-spring-damper model was adopted for the vehicle and the fi-nite element model based on the Winkler foundation was adopted for the concrete pavement.The improved harmonic su-perposition method was used to consider the 3-D distribution of road surface roughness, and the displacement coordina-tion equation was used for the simultaneous solution of the vehicle and pavement vibration.Example analysis showed that the established vehicle-pavement coupling vibration model could truly reflect the space geometric and mechanical coupling relationship between vehicle and pavement.With the stimulus of three-dimensional road roughness, the dy-namic response of the vehicle and pavement showed significant spatial distribution characteristics.Comparing with the results of the transient dynamic analysis method, the deflection and stress of the pavement significantly increased.