Nonlinear dynamics of magnetically coupled beams for multi-modal vibration energy harvesting

I. Abed; N. Kacem; N. Bouhaddi; M. L. Bouazizi

doi:10.1117/12.2218410

15 April 2016 Nonlinear dynamics of magnetically coupled beams for multi-modal vibration energy harvesting

I. Abed, N. Kacem, N. Bouhaddi, M. L. Bouazizi

Author Affiliations +

Proceedings Volume 9799, Active and Passive Smart Structures and Integrated Systems 2016; 97992C (2016) https://doi.org/10.1117/12.2218410
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2016, Las Vegas, Nevada, United States

Abstract

We investigate the nonlinear dynamics of magnetically coupled beams for multi-modal vibration energy harvesting. A multi-physics model for the proposed device is developed taking into account geometric and magnetic nonlinearities. The coupled nonlinear equations of motion are solved using the Galerkin discretization coupled with the harmonic balance method and the asymptotic numerical method. Several numerical simulations have been performed showing that the expected performances of the proposed vibration energy harvester are significantly promising with up to 130 % in term of bandwidth and up to 60 μWcm^-3g^-2 in term of normalized harvested power.

Citation Download Citation

I. Abed, N. Kacem, N. Bouhaddi, and M. L. Bouazizi "Nonlinear dynamics of magnetically coupled beams for multi-modal vibration energy harvesting", Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 97992C (15 April 2016); https://doi.org/10.1117/12.2218410

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