Broadband energy harvesting using acoustic black hole structural tailoring

• Published in: Smart materials and structures Vol. 23; no. 6; pp. 65021 - 9
• Main Authors: Zhao, Liuxian, Conlon, Stephen C, Semperlotti, Fabio
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.06.2014; Institute of Physics
• Subjects: acoustic black hole; Acoustics; Black holes (astronomy); Design engineering; Dynamical systems; Dynamics; Energy harvesting; Energy use; Exact sciences and technology; Excitation; General equipment and techniques; Harvesting; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Mathematical models; Physics; structural tailoring; Transducers; Vibrations; Acoustic transducers; Output power; Wide band; Mechanical model; Piezoelectric transducers; Black holes; Space-time model; Energy recovery

This paper explores the concept of an acoustic black hole (ABH) as a main design framework for performing dynamic structural tailoring of mechanical systems for vibration energy harvesting applications. The ABH is an integral feature embedded in the host structure that allows for a smooth reduction...