Modeling and Analysis of Wave Energy Harvester with Symmetrically Distributed Galfenol Cantilever Beams

• Published in: Materials Vol. 16; no. 16; p. 5585
• Main Authors: Jin, Sunyangyang, Meng, Aihua, Li, Mingfan, Xu, Zhenlong, Wu, Shuaibing, Chen, Yu
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 11.08.2023; MDPI
• Subjects: Analysis; CAD; Cantilever beams; Computer aided design; Cylindrical waves; Deformation; Design; Efficiency; Electric potential; Electromotive forces; Energy consumption; Energy costs; Energy harvesting; Environmental monitoring; Galfenol; Hysteresis models; Magnetism; Mathematical analysis; Mathematical models; Mechanical properties; Power supply; Sensors; Simulation methods; Wave power; Wireless sensor networks
• DOI: 10.3390/ma16165585
• ISSN: 1996-1944

In response to the challenges of difficult energy supply and high costs in ocean wireless sensor networks, as well as the limited working cycle of chemical batteries, a cylindrical wave energy harvester with symmetrically distributed multi-cantilever beams was designed with Galfenol sheet as the core component. The dynamic equation of the device was established, and ANSYS transient dynamic simulations and Jiles-Atherton hysteresis model analysis were conducted to develop a mathematical model of the induced electromotive force of the Galfenol cantilever beam as a function of deformation. Experimental validation demonstrated that the simulated results of the cantilever beam deformation had an average error of less than 7% compared to the experimental results, while the average error between the theoretical and experimental values of the induced electromotive force of the device was around 15%, which preliminarily verifies the validity of the mathematical model of the device, and should be subject to further research and improvement.