重载交通条件下车路耦合系统非线性动力学行为精细化仿真

项目名称： 重载交通条件下车路耦合系统非线性动力学行为精细化仿真

项目编号： No.11302138

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 王扬

作者单位： 石家庄铁道大学

项目金额： 28万元

中文摘要： 高速公路交通的发展和重型车辆的大量运用，促使人们探讨在较为真实的轮载力作用下车路系统的动力学响应。前期研究表明，将车辆和道路系统耦合，并建立耦合系统的精细化模型进行分析非常必要。重载交通条件下的车路耦合系统呈现出复杂的非线性行为，系统庞大，很难用解析方法得到精确解，需要用仿真方法进行研究。现有车路耦合系统仿真模型尚未将荷载的复杂性与结构非线性同时体现出来。本项目将车辆系统和道路系统进行耦合，对耦合系统的非线性动力学行为进行精细化仿真，研究其非线性动力学行为机理和沥青路面在长期重载交通条件下的破坏过程。研究成果可为车路耦合系统非线性动力学分析提供有效工具，对于深化车路耦合系统动力学研究、指导沥青路面结构设计具有一定的理论意义和应用价值。

中文关键词： 车路耦合系统；非线性动力学；轮胎力；路面病害；

英文摘要： With the development of expressway traffic and the wide application of heavy vehicles, scholars began to discuss the dynamic responses of vehicle-road coupled system under the comparatively authentic pressure. It is very necessary to establish refined model for vehicle-road coupled system. The vehicle-road coupled system under heavy load traffic is a complicated nonlinear vibration system with numerous degrees of freedom, presents complex nonlinear behavior. Therefore, adopting analytic method cannot get the result, the simulation method is efficient. However, the complexity of load and structure is not presented in current simulation models. This project will couple vehicle system and road system, and perform refined simulation for nonlinear mechanics behaviors of the coupled system. Mechanism of nonlinear mechanics behaviors and failure process of asphalt pavement under long term heavy load traffic also will be studied. The research achievement can be one of effective tools in analysis of nonlinear mechanics behaviors for vehicle-road coupled system. It also has theoretical significance and applied value to deepen the dynamics analysis methods of vehicle-road coupled system and guid the design of asphalt pavement structure.

英文关键词： Vehicle-Pavement Coupling System；Nonlinear Dynamics；Tire Force；Pavement Disease；