二次交通事故Duffing振子模型研究  

Research on Duffing Oscillator Model of Secondary Traffic Accident

作　　者：张文会[1] 李平[2] 

机构地区：[1]东北林业大学交通学院,哈尔滨150040 [2]长安大学公路学院,西安710064

出　　处：《武汉理工大学学报（交通科学与工程版）》2011年第6期1205-1208,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：中央高校基本科研业务费专项资金项目资助(批准号:DL09BB18)

摘　　要：为了揭示二次交通事故的演变特性,预防二次交通事故的发生,在描述Duffing振子模型的基础上,分析二次交通事故的混沌特性,并建立混沌模型.在仿真环境下,改变模型参数值,得到系统出现周期振荡状态和混沌状态的系统结构条件,并绘制出相平面图和根轨迹图.实例分析结果表明,Duffing振子模型可用于二次交通事故演变过程分析,仿真结果为采取有效的二次交通事故预防措施提供了理论依据.In order to discover evolution of secondary traffic accidents and prevent from secondary traffic accidents,chaos characteristics of secondary traffic accidents are analyzed based on describing Duffing oscillator model.Afterwards,chaos model is established.By means of simulation,parameters values in chaos model are changed to obtain system constructions when periodic oscillation and chaos state occur.The phase plane and root locus diagrams are drawn.Case study shows that it is feasible to apply Duffing equation to analyze evolution of secondary traffic accidents.Simulation results provide theory conference for taking effective measurements to prevent from secondary traffic accidents.

关 键 词：二次交通事故 混沌特性 DUFFING方程 仿真 

分 类 号：U491.31[交通运输工程—交通运输规划与管理]