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1 Journal of Applied Mathematics and Computational Mechanics

1 2020

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On the fractional-order dynamics of a double pendulum with a forcing constraint using the nonsingular fractional derivative approach

Rangaig Norodin A., Pido Alvanh Alem G., Pada-Dulpina Caironesa T.

Journal of Applied Mathematics and Computational Mechanics

2020

Vol. 19, nr 2

95-106

In this paper, we presented the fractional-order dynamics of a double pendulum, at a small oscillation, with a non-singular derivative kernel. The equation of motion has been derived from the fractional Lagrangian of the system and the considered fractional Euler-Lagrange equation. The generalized force has also been presented in studying the different cases of force, such as horizontal and vertical forcing. The source term is described by the imposed periodic force, and the memory effect gives an additional damping factor described by the fractional order. The integer and fractional orders of the sample phase diagrams were obtained and presented to visualize the effect of the presented fractional order on the system. Also, since the motion of the system dissipates in the fractional regime, the applied force will drive the system out of equilibrium.