کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6953952 1451824 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stabilization in finite time for fractional-order hyperchaotic electromechanical gyrostat systems
ترجمه فارسی عنوان
تثبیت در زمان محدود برای سیستم های الکترومکانیکی جیروستات فوق العاده شکسته به ترتیب کسر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
This paper is concerned with adaptive robust stabilization in finite time for fractional-order chaotic and hyperchaotic Electromechanical Gyrostat Systems (EGSs) with unknown parameters and uncertainties. Firstly, a fractional-order EGS mathematical model is proposed, and the existence of chaotic and hyperchaotic attractors is verified with the related Lyapunov exponents, phase portraits and Poincaré sections. Then, fractional-order adaptive laws are proposed to estimate the unknown parameters. Based on the fractional-order convergence theory in finite time, a novel discontinuous state feedback controller with the proposed fractional-order adaptive laws is designed to stabilize the fractional-order EGSs in finite time globally, and the stabilization conditions are analytically addressed. Finally, numerical simulations are employed to demonstrate the validity of the theoretical results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 111, October 2018, Pages 628-642
نویسندگان
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