Zhang Xu, Chen Guanrong
Department of Mathematics, Shandong University, Weihai 264209, Shandong, China.
Department of Electrical Engineering, City University of Hong Kong, Hong Kong, China.
Chaos. 2022 Jul;32(7):071102. doi: 10.1063/5.0102521.
Most classical chaotic systems, such as the Lorenz system and the Chua circuit, have chaotic attractors in bounded regions. This article constructs and analyzes a different kind of non-smooth impulsive systems, which have growing numbers of attractors in the sense that the number of attractors or the scrolls of an attractor is growing as time increases, and these attractors or scrolls are not located in bounded regions. It is found that infinitely many chaotic attractors can be generated in some of such systems. As an application, both theoretical and numerical analyses of an impulsive Lorenz-like system with infinitely many attractors are demonstrated.
大多数经典混沌系统,如洛伦兹系统和蔡氏电路,在有界区域内具有混沌吸引子。本文构建并分析了一种不同类型的非光滑脉冲系统,这类系统具有不断增加的吸引子,即吸引子的数量或一个吸引子的卷数随着时间的增加而增长,并且这些吸引子或卷并不位于有界区域内。研究发现,在某些此类系统中可以产生无穷多个混沌吸引子。作为应用,展示了对具有无穷多个吸引子的脉冲类洛伦兹系统的理论和数值分析。