arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0811.2489nlin.CD
收藏

非自治耦合振子中的Plykin类吸引子

Plykin-like attractor in non-autonomous coupled oscillators

Sergey P. Kuznetsov

摘要:

考虑了两个耦合非自治振子系统。复振幅的动力学由微分方程控制,微分方程的系数随时间呈周期性分段连续变化。Poincaré映射是显式导出的。排除的整体阶段,其他变量的演变不依赖于,庞加莱映射减少到3D映射。它有一个Plykin型吸引子,位于不变球面上。锥准则的计算机验证证实了3D映射中吸引子的双曲性质。给出了耦合振子动力学的一些数值研究结果,包括吸引子画像、李雅普诺夫指数和功率谱密度。

英文摘要:

A system of two coupled non-autonomous oscillators is considered. Dynamics of complex amplitudes is governed by differential equations with periodic piecewise continuous dependence of the coefficients on time. The Poincaré map is derived explicitly. With exclusion of the overall phase, on which the evolution of other variables does not depend, the Poincaré map is reduced to 3D mapping. It possesses an attractor of Plykin type located on an invariant sphere. Computer verification of the cone criterion confirms the hyperbolic nature of the attractor in the 3D map. Some results of numerical studies of the dynamics for the coupled oscillators are presented, including the attractor portraits, Lyapunov exponents, and the power spectral density.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑