|
|||||
|
|
| 由国际平整度指数模拟路面不平度方法研究 | |
| 引用本文： | 张向东,闫维明,葛惠娟,刘猛. 由国际平整度指数模拟路面不平度方法研究[J]. 公路交通科技, 2009, 26(4) |
| 作者姓名： | 张向东 闫维明 葛惠娟 刘猛 |
| 作者单位： | 1. 北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100022 2. 北京市路政局,道路工程质量监督站,北京,100076 3. 辽宁工业大学,辽宁,锦州,121001 |
| 基金项目： | 国家自然科学基金，北京市教委科技与研究生教育建设资助项目 |
| 摘 要： | 为了将实测得到的国际平整度指数IRI值引入到路面不平度模拟中,从而在车一路或车一桥相互作用的耦舍体系中更准确地模拟由路面不平度引起的车辆动荷栽,提出了一种通过实测IRI值得到该段路路面不平度的方法.由IRI的计算方法入手,通过建立1/4车模型来分析路面不平度的输入和车辆、地面的振动响应,并通过路面不平度标准差与IRI的关系等式作为中介,将IRI引入到路面不平度的模拟中,采用周期图表法,利用功率谱密度函数和傅立叶逆变换,进一步模拟出路面不平度.最后进行了实例模拟,通过程序分析,验证了该方法的有效性. |
| 关 键 词： | 道路工程 路面不平度 数值模拟 功率谱密度 国际平整度指数 车辆动力学 |
Study on Simulation Method of Road Roughness by International Roughness Index |
|
| ZHANG Xiangdong,YAN Weiming,GE Huijuan,LIU Meng. Study on Simulation Method of Road Roughness by International Roughness Index[J]. Journal of Highway and Transportation Research and Development, 2009, 26(4) | |
| Authors: | ZHANG Xiangdong YAN Weiming GE Huijuan LIU Meng |
| Affiliation: | 1.Beijing Key Lab of Earthquake Engineering and Structural Retrofit;Beijing University of Technology;Beijing 100022;China;2.Road Engineering Quality Monitoring Station;Beijing Municipal Roadway Administration Bureau;Beijing 100076;3.Liaoning University of Technology;Jinzhou Liaoning 121001;China |
| Abstract: | In order to introduce the International Roughness Index(IRI)obtained by in-site test to simulate the road roughness and then simulate the vehicle dynamic load and dynamic response of pavement caused by road roughness in the vehicle-road or vehicle-bridge interaction system more precisely,a new mathematical method of road roughness was proposed based on IRI.Started with the calculation method of IRI,the quarter-car model was established to analyze the inputs of road roughness and the outputs of auto vibratio... |
| Keywords: | road engineering road roughness numerical simulation power spectral density International Roughness Index vehicle dynamics |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |