Energy Harvester Based on a Rotational Pendulum Supported with FEM

This dataset belongs to the results from the article titled "Energy Harvester Based on a Rotational Pendulum Supportedwith FEM" published in the journal "Applied Sciences" by Grzegorz Litak, Mirosław Kondratiuk, Piotr Wolszczak, Bartłomiej Ambrozkiewicz, and Abhijeet M. Giri (https://doi.org/10.3390/app14083265). Abstract: The proposed energy harvesting system is based on a rotational pendulum-like electromagneticdevice. Pendulum energy harvesting systems can be used to generate power for wearabledevices such as smart watches and fitness trackers, by harnessing the energy from the human bodymotion. These systems can also be used to power low-energy-consuming sensors and monitoringdevices in industrial settings where consistent ambient vibrations are present, enabling continuousoperation without any need for frequent battery replacements. The pendulum-based energy harvesterpresented in this work was equipped with additional adjustable permanent magnets placedinside the induction coils, governing the movement of the pendulum. This research pioneers a novelelectromagnetic energy harvester design that offers customizable potential configurations. Such adesign was realized using the 3D printing method for enhanced precision, and analyzed using thefinite element method (FEM). The reduced dynamic model was derived for a real-size device andFEM-based simulations were carried out to estimate the distribution and interaction of the magneticfield. Dynamic simulations were performed for the selected magnet configurations of the system.Power output analyses are presented for systems with and without the additional magnets insidethe coils. The primary outcome of this research demonstrates the importance of optimization ofgeometric configuration. Such an optimization was exercised here by strategically choosing the sizeand positioning of the magnets, which significantly enhanced energy harvesting performance byfacilitating easier passage of the pendulum through magnetic barriers.