کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8254470 1533634 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the analysis of local bifurcation and topological horseshoe of a new 4D hyper-chaotic system
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک آماری و غیرخطی
پیش نمایش صفحه اول مقاله
On the analysis of local bifurcation and topological horseshoe of a new 4D hyper-chaotic system
چکیده انگلیسی
In this paper, a new four-dimensional (4D) smooth quadratic autonomous system with complex hyper-chaotic dynamics is presented and analyzed. The Lyapunov exponent (LE) spectrum, bifurcation diagram and various phase portraits of the system are provided. The stability, Hopf bifurcation and pitchfork bifurcation of equilibrium point are discussed by using the center manifold theorem and bifurcation theory. Numerical simulation results are consistent with the theoretical analysis. Besides, by combining the topological horseshoe theory with a computer-assisted method of Poincaré maps and utilizing the algorithm for finding horseshoes in 3D hyper-chaotic maps, a horseshoe with two-directional expansions in the 4D hyper-chaotic system is successfully found, which rigorously proves the existence of hyper-chaos in theory.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chaos, Solitons & Fractals - Volume 91, October 2016, Pages 148-156
نویسندگان
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