Resonance Oscillation of Third-Order Forced van der Pol System With Fractional-Order Derivative

2016 ◽  
Vol 11 (4) ◽  
Author(s):  
Nguyen Van Khang ◽  
Bui Thi Thuy ◽  
Truong Quoc Chien
Keyword(s):  
Fractional Order ◽  
Frequency Equation ◽  
Lyapunov Theory ◽  
Van Der Pol Oscillator ◽  
System Stability ◽  
Order Derivative ◽  
Resonance Oscillation ◽  
Third Order ◽  
Van Der Pol ◽  
Fractional Order Derivative

This study aims to investigate the harmonic resonance of third-order forced van der Pol oscillator with fractional-order derivative using the asymptotic method. The approximately analytical solution for the system is first determined, and the amplitude–frequency equation of the oscillator is established. The stability condition of the harmonic solution is then obtained by means of Lyapunov theory. A comparison between the traditional integer-order of forced van der Pol oscillator and the considered fractional-order one follows the numerical simulation. Finally, the numerical results are analyzed to show the influences of the parameters in the fractional-order derivative on the steady-state amplitude, the amplitude–frequency curves, and the system stability.

scholarly journals Subharmonic Resonance of Van Der Pol Oscillator with Fractional-Order Derivative

2014 ◽  
Vol 2014 ◽  
pp. 1-17 ◽  
Author(s):  
Yongjun Shen ◽  
Peng Wei ◽  
Chuanyi Sui ◽  
Shaopu Yang
Keyword(s):  
Steady State ◽  
Fractional Order ◽  
Averaging Method ◽  
Frequency Equation ◽  
Lyapunov Theory ◽  
Subharmonic Resonance ◽  
Order Derivative ◽  
Van Der Pol ◽  
Fractional Order Derivative ◽  
Equivalent Linear

The subharmonic resonance of van der Pol (VDP) oscillator with fractional-order derivative is studied by the averaging method. At first, the first-order approximate solutions are obtained by the averaging method. Then the definitions of equivalent linear damping coefficient (ELDC) and equivalent linear stiffness coefficient (ELSC) for subharmonic resonance are established, and the effects of the fractional-order parameters on the ELDC, the ELSC, and the dynamical characteristics of system are also analysed. Moreover, the amplitude-frequency equation and phase-frequency equation of steady-state solution for subharmonic resonance are established. The corresponding stability condition is presented based on Lyapunov theory, and the existence condition for subharmonic resonance (ECSR) is also obtained. At last, the comparisons of the fractional-order and the traditional integer-order VDP oscillator are fulfilled by the numerical simulation. The effects of the parameters in fractional-order derivative on the steady-state amplitude, the amplitude-frequency curves, and the system stability are also studied.

Subharmonic Resonance of Duffing Oscillator With Fractional-Order Derivative

2016 ◽  
Vol 11 (5) ◽  
Author(s):  
Nguyen Van Khang ◽  
Truong Quoc Chien
Keyword(s):  
Analytical Solution ◽  
Fractional Order ◽  
Duffing Oscillator ◽  
Existence Condition ◽  
Lyapunov Theory ◽  
Subharmonic Resonance ◽  
System Stability ◽  
Order Derivative ◽  
Fractional Order Derivative ◽  
Approximately Analytical Solution

In this paper, the subharmonic resonance of Duffing oscillator with fractional-order derivative is investigated using the averaging method. First, the approximately analytical solution and the amplitude–frequency equation are obtained. The existence condition for subharmonic resonance based on the approximately analytical solution is then presented, and the corresponding stability condition based on Lyapunov theory is also obtained. Finally, a comparison between the fractional-order and the traditional integer-order of Duffing oscillators is made using numerical simulation. The influences of the parameters in fractional-order derivative on the steady-state amplitude, the amplitude–frequency curves, and the system stability are also investigated.

scholarly journals On the Agaciro Equation via the Scope of Green Function

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Abdon Atangana ◽  
Innocent Rusagara
Keyword(s):  
Exact Solution ◽  
Green Function ◽  
Fractional Order ◽  
Mellin Transform ◽  
Integral Transform ◽  
Special Functions ◽  
Order Derivative ◽  
Third Order ◽  
Fractional Order Derivative ◽  
The Green Function

We have undertaken an investigation of a kind of third-order equation called Agaciro equation within the folder of both integer and fractional order derivative. In the way of deriving the general exact solution of this equation, we employed the philosophy of the Green function together with some integral transform operators and special functions including but not limited to the Laplace, Fourier, and Mellin transform. We presented some examples of exact solution of this class of third-order equations for integer and fractional order derivative. It is important to point out that the value of Agaciro equation can be extended to describe assorted phenomenon in sciences.

GENERALIZED THEORY OF MAGNETO-THERMO-VISCOELASTIC SPHERICAL CAVITY PROBLEM UNDER FRACTIONAL ORDER DERIVATIVE: STATE SPACE APPROACH

2020 ◽  
Vol 9 (11) ◽  
pp. 9769-9780
Author(s):  
S.G. Khavale ◽  
K.R. Gaikwad
Keyword(s):  
State Space ◽  
Fractional Order ◽  
Order Derivative ◽  
Laplace Inversion ◽  
State Space Approach ◽  
Spherical Region ◽  
Fractional Order Derivative ◽  
Numerical Laplace Inversion ◽  
Mathcad Software ◽  
Space Approach

This paper is dealing the modified Ohm's law with the temperature gradient of generalized theory of magneto-thermo-viscoelastic for a thermally, isotropic and electrically infinite material with a spherical region using fractional order derivative. The general solution obtained from Laplace transform, numerical Laplace inversion and state space approach. The temperature, displacement and stresses are obtained and represented graphically with the help of Mathcad software.

scholarly journals Novel hyperbolic and exponential ansatz methods to the fractional fifth-order Korteweg–de Vries equations

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Choonkil Park ◽  
R. I. Nuruddeen ◽  
Khalid K. Ali ◽  
Lawal Muhammad ◽  
M. S. Osman ◽  
...  
Keyword(s):  
Fractional Derivative ◽  
Fractional Order ◽  
Mathematical Physics ◽  
Order Derivative ◽  
Conformable Fractional Derivative ◽  
Fractional Order Derivative ◽  
De Vries ◽  
Fifth Order ◽  
2D And 3D

Abstract This paper aims to investigate the class of fifth-order Korteweg–de Vries equations by devising suitable novel hyperbolic and exponential ansatze. The class under consideration is endowed with a time-fractional order derivative defined in the conformable fractional derivative sense. We realize various solitons and solutions of these equations. The fractional behavior of the solutions is studied comprehensively by using 2D and 3D graphs. The results demonstrate that the methods mentioned here are more effective in solving problems in mathematical physics and other branches of science.

scholarly journals Iterative analysis of non-linear Swift-Hohenberg equations under nonsingular fractional order derivative

2021 ◽  
pp. 104080
Author(s):  
Israr Ahmad ◽  
Thabet Abdeljawad ◽  
Ibrahim Mahariq ◽  
Kamal Shah ◽  
Nabil Mlaiki ◽  
...  
Keyword(s):  
Fractional Order ◽  
Order Derivative ◽  
Fractional Order Derivative ◽  
Iterative Analysis ◽  
Non Linear
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