移动荷载作用下路面动力响应试验研究  

Experiments on dynamic response of pavement under moving load

作　　者：陈恩利[1,2] 刘永强[1,2] 赵进宝[1] 

机构地区：[1]石家庄铁道大学机械工程学院,石家庄050043 [2]河北省交通安全与控制重点实验室,石家庄050043

出　　处：《振动与冲击》2014年第16期62-67,共6页Journal of Vibration and Shock

基　　金：国家重点基础研究发展计划(973计划)(2012CB723301);国家自然科学基金(11172183;10932006;11202141;11302137;11227201);铁路总公司重大项目(2014J012);河北省自然科学基金(A2013210013);河北省教育厅项目(YQ2014028)

摘　　要：针对路面结构响应动力学理论模型构造实验模型。经模型试验与数值仿真相结合方法研究移动荷载下路面动力学响应。设计含车辆模型及分布刚度路面模型的车路模型试验系统,其中车辆模型包括谐振源车辆模型及1/4车模型。利用模型试验与数值仿真方法分别对移动简谐激励及冲击激励作用的分布刚度路面动力响应进行研究。数值仿真与试验结果对比表明设计的模型及实验方法可近似模拟车-路耦合作用及路面动力响应。In order to test the accuracy of the dynamic response of pavement,calculated based on the theoretical model,a new test rig was proposed. With the help of experimental and numerical simulation,the dynamic response of pavement under moving load was investigated. The vehicle-pavement test rig includes a vehicle model and a distributed stiffness pavement-roadbed model,and the vehicle model was simplified as a quarter of resonance source vehicle model.The dynamic response of distributed of stiffness pavement under moving resonance load and shock excitement were analysed respectively. The results show that the designed test rig is usable,and the experiment results can meet closely with the numerical results.

关 键 词：模型试验 移动荷载 路面响应 动力学 

分 类 号：O32[理学—一般力学与力学基础] U416[理学—力学]