Dynamic properties of chasers in a moving queue based on a delayed chasing model  

作　　者：郭宁 丁建勋 凌翔 石琴 Reinhart Kühne 

机构地区：[1]School of Engineering Science, University of Science and Technology of China, Hefei 230026, China [2]School of Transportation Engineering, Hefei University of Technology, Hefei 230009, China [3]Key Laboratory of Process Optimization and Intelligent Decision-Making of Ministry of Education, Hefei 230009, China [4]Department for Transportation, University of Stuttgart, Stuttgart 70174, Germany

出　　处：《Chinese Physics B》2016年第5期106-110,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.71071044,71001001,71201041,and 11247291);the Doctoral Program of the Ministry of Education of China(Grant Nos.20110111120023 and 20120111120022);the Postdoctoral Fund Project of China(Grant No.2013M530295);the National Basic Research Program of China(Grant No.2012CB725404);1000 Plan for Foreign Talent,China(Grant No.WQ20123400070)

摘　　要：A delayed chasing model is proposed to simulate the chase behavior in the queue, where each member regards the closest one ahead as the target, and the leader is attracted to a target point with slight fluctuation. When the initial distances between neighbors possess an identical low value, the fluctuating target of the leader can cause an amplified disturbance in the queue. After a long period of time, the queue recovers the stable state from the disturbance, forming a straightline-like pattern again, but distances between neighbors grow. Whether the queue can keep stable or not depends on initial distance, desired velocity, and relaxation time. Furthermore, we carry out convergence analysis to explain the divergence transformation behavior and confirm the convergence conditions, which is in approximate agreement with simulations.A delayed chasing model is proposed to simulate the chase behavior in the queue, where each member regards the closest one ahead as the target, and the leader is attracted to a target point with slight fluctuation. When the initial distances between neighbors possess an identical low value, the fluctuating target of the leader can cause an amplified disturbance in the queue. After a long period of time, the queue recovers the stable state from the disturbance, forming a straightline-like pattern again, but distances between neighbors grow. Whether the queue can keep stable or not depends on initial distance, desired velocity, and relaxation time. Furthermore, we carry out convergence analysis to explain the divergence transformation behavior and confirm the convergence conditions, which is in approximate agreement with simulations.

关 键 词：chase queue DISTURBANCE convergence analysis 

分 类 号：O226[理学—运筹学与控制论]