Investigation of the weight effect on the oscillations of a magnetically-levitated body coupled to an energy harvester

Abstract

Abstract Energy harvesting technology utilizes magnetic oscillations to produce electrical energy which in turn powers any small device. This paper discusses the numerical analysis of a non-ideal magnetic levitation system, with emphasis on the energy harvesting potential considering the weight of the oscillating middle block. The system being considered is a magnetic levitation system connected to an electrodynamic shaker that excites the base of the system to produce oscillations. The outcome of modelling the Maglev system is a coupled highly nonlinear equation that resembles the duffing oscillator. Runge-Kutta method is carried out to describe the temporal behavior of the oscillatory middle block and hence the harvested power. The results of findings presented through phase planes, Poincare map and parametric variations indicate that varying parameters such as Ω and E, directly impact power harvesting and system stability. This paper explores periodic and non-periodic motions in the temporal behavior of the Maglev system, contributing to the current trend in energy harvesting. The novel addition of the middle block’s weight offers crucial insights for enhancing energy harvesting devices, paving the way for future advancements in system design and application.