吉林大学学报(理学版) ›› 2022, Vol. 60 ›› Issue (2): 432-438.

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具有非线性时滞项的分数阶混沌系统ADM求解与动力学分析

付海燕1, 雷腾飞1, 贺金满2, 臧红岩1   

  1. 1. 齐鲁理工学院 机电工程学院,  济南 250200; 2. 中原工学院 理学院, 郑州 450007
  • 收稿日期:2021-03-31 出版日期:2022-03-26 发布日期:2022-03-26
  • 通讯作者: 雷腾飞 E-mail:leitengfeicanhe@126.com

ADM Solution and Dynamic Analysis of Fractional-Order Chaotic System with Nonlinear Delay

FU Haiyan1, LEI Tengfei1, HE Jinman2, ZANG Hongyan1   

  1. 1. School of Mechanical and Electrical  Engineering, Qilu Institute of Technology, Jinan 250200, China;
    2. School of Science, Zhongyuan University of Technology, Zhengzhou 450007, China
  • Received:2021-03-31 Online:2022-03-26 Published:2022-03-26

摘要: 根据分数阶Lü混沌系统, 提出具有非线性时滞项的分数阶Lü混沌系统. 首先, 用Adomian分解算法(ADM)对分数阶Lü混沌系统进行数值求解; 其次, 用MATLAB软件绘制系统相轨迹图; 最后, 用仿真技术及分岔图、 复杂度和相轨迹等动力学分析工具, 分析系统参数对系统的影响. 数值仿真结果表明, 该系统具有丰富的动力学特性.

关键词: 分数阶, 时滞, 混沌, 复杂度

Abstract: We proposed a fractional-order Lü chaotic system with nonlinear delay term according to the fractional-order Lü chaotic system. Firstly, the fractional-order Lü chaotic system was numerically solved by Adomian-decompositio-method (ADM). Secondly, the phase trajectory diagram of the system was drawn by MATLAB software. Finally, by using simulation technology and dynamic analysis tools such as bifurcation diagram, complexity and phase trajectory, the effect of system parameters on the system was analyzed. The numerical simulation results show that the system has rich dynamic characteristics.

Key words: fractional-order, delay, chaos, complexity

中图分类号: 

  • O411