Exploring coupled electromechanical nonlinearities for broadband energy harvesting from low-frequency rotational sources

• Published in: Smart materials and structures Vol. 28; no. 7; pp. 75001 - 75015
• Main Authors: Fu, Hailing, Zhou, Shengxi, Yeatman, Eric M
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.07.2019
• Subjects: bi-stability; coupled nonliearity; frequency up-conversion; output power fluctuation; piezoelectricity; rotational energy harvesting

This paper presents a methodology to effectively harness low-frequency broadband rotational energy using coupled electromechanical nonlinearities. This design integrates bi-stability and a synchronized switch harvesting on inductor (SSHI) circuit into a frequency up-converting harvester (FRUCH). The...