Energy harvesting characteristics in metamaterials based on bistable lattices

Myungwon Hwang; Andres F. Arrieta

doi:10.1117/12.2514426

21 March 2019 Energy harvesting characteristics in metamaterials based on bistable lattices

Myungwon Hwang, Andres F. Arrieta

Proceedings Volume 10967, Active and Passive Smart Structures and Integrated Systems XIII; 109670B (2019) https://doi.org/10.1117/12.2514426
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States

Abstract

In this study, an energy harvesting strategy that utilizes the input-independent, invariant transition waves in periodic lattices of bistable elements is explored. We observe that oscillatory tails are induced in a discrete array as transition waves propagate along the lattice. The generated tail at each unit cell vibrates predominantly at a single frequency, which indicates that the tail energy can be efficiently harvested through resonant transduction mechanisms. We introduce inertially and elastically equivalent lattice models to study the discreteness effect of the bistable lattice on the characteristic behaviors of the oscillatory tails and observe that the energy harvesting potential from transition waves can be significantly increased with growing discreteness.

Citation Download Citation

Myungwon Hwang and Andres F. Arrieta "Energy harvesting characteristics in metamaterials based on bistable lattices", Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XIII, 109670B (21 March 2019); https://doi.org/10.1117/12.2514426

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