ENERGY HARVESTING THROUGH PENDULUM MOTION AND DC GENERATORS

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RAFAEL HENRIQUE AVANÇO
ANGELO MARCELO TUSSET
MARCELO SUETAKE
HELIO APARECIDO NAVARRO
JOSÉ MANOEL BALTHAZAR
AIRTON NABARRETE

Abstract

IN THIS PAPER THE MAIN ANALYSIS FOCUS ON THE PENDULUM BEHAVIOR AND TYPES OF MOTION WHEN COUPLED TO A DC GENERATOR. A SIMPLE PENDULUM IS VERTICALLY EXCITED ON ITS SUPPORT AND CONSEQUENTLY EXHIBITING OSCILLATIONS AND ROTATIONS. THE MOTION OF THE PENDULUM SPINS THE AXIS OF A DC GENERATOR AND INDUCING A CURRENT. THE DYNAMIC MODEL INVOLVING THE GENERATOR AND THE PENDULUM DYNAMICS IS DEVELOPED AND ANALYZED IN THIS ARTICLE. BIFURCATION DIAGRAMS DEMONSTRATE DOUBLING-PERIOD AND SADDLE-NODE BIFURCATIONS WITH THE CHAOS. THE PRESENCE OF CHAOS IS VERIFIED BY THE LYAPUNOV EXPONENTS APPLIED ON THE TIME SERIES OF THE PENDULUM SPEED AND POSITION. NONIDEAL INTERACTIONS OF A DC MOTOR WITH A PENDULUM BY A CRANK-SHAFT-SLIDER MECHANISM IS ANALYZED AND COMPARED WITH A IDEAL EXCITATION OF THE PENDULUM.

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Section
DSTA 2017