论文部分内容阅读
本文在建立车辆-道路耦合系统分析模型的基础之上,编制了车路耦合系统的动力仿真程序,研究了不同路面不平顺幅值,不同车辆行驶速度,不同车辆载重以及轴数的变化等参数情况下路面结构不同节点的位移及加速度随参数的变化情况;并探讨了不同路面结构层厚度组合情况下对路面结构的动力响应的影响,研究结果表明路面不平顺幅值对于路面结构的位移与加速度响应影响巨大;车速增加虽不影响路面结构的位移响应,但是增大了路面结构的加速度响应从而增大了对于路面结构的冲击作用;载重的增大会显著增大路面结构的位移与加速度响应;不同路面结构层厚度的组合会显著影响路面结构系统的动力响应,相关的研究还有待于进一步的理论与试验验证。
Based on the establishment of the analysis model of vehicle-road coupling system, this paper develops the dynamic simulation program of vehicle-road coupling system and studies the parameters such as the different road roughness amplitude, different vehicle speed, different vehicle load and the change of shaft number The displacement and acceleration of different nodes under the condition of road are changed with the parameters. The influence of pavement structure thickness on the dynamic response of the pavement is also discussed. The results show that the influence of road roughness on the pavement structure displacement and The acceleration response has a great influence on the pavement structure. The increase of the vehicle speed does not affect the displacement response of the pavement structure, but increases the acceleration response of the pavement structure and increases the impact on the pavement structure. The increase of the load will significantly increase the displacement and acceleration response of the pavement structure ; The combination of different pavement structural layer thickness will significantly affect the dynamic response of pavement structure system, the relevant research needs to be further theoretical and experimental verification.