A study of a multi-pole magnetic generator for low-frequency vibrational energy harvesting

2009 ◽  
Vol 20 (2) ◽  
pp. 025015 ◽  
Author(s):  
Shuo Cheng ◽  
David P Arnold
Keyword(s):  
Energy Harvesting ◽  
Vibrational Energy ◽  
Low Frequency ◽  
Vibrational Energy Harvesting ◽  
Magnetic Generator

Vibrational Energy Harvesting Devices

2010 ◽  
Vol 2 (2) ◽  
pp. 80-92
Author(s):  
Rupesh Patel ◽  
Atanas A. Popov ◽  
Stewart McWilliam
Keyword(s):  
Energy Harvesting ◽  
Vibrational Energy ◽  
Energy Harvesting Devices ◽  
Vibrational Energy Harvesting

An analytic study of vibrational energy harvesting using piezoelectric tiles in stairways subjected to human traffic

2018 ◽  
Vol 30 (5) ◽  
pp. 968-985
Author(s):  
CONNOR EDLUND ◽  
SUBRAMANIAN RAMAKRISHNAN
Keyword(s):  
Energy Harvesting ◽  
Vibrational Energy ◽  
Electrical Power ◽  
Random Excitation ◽  
Analytical Models ◽  
Practical Applications ◽  
Type Iii ◽  
Pedestrian Traffic ◽  
Type V ◽  
Vibrational Energy Harvesting

This work investigates analytically, the use of piezoelectric tiles placed on stairways for vibrational energy harvesting – harnessing electrical power from natural vibrational phenomena – from pedestrian footfalls. While energy harvesting from pedestrian traffic along flat pathways has been studied in the linear regime and realised in practical applications, the greater amounts of energy naturally expended in traversing stairways suggest better prospects for harvesting. Considering the characteristics of two types of commercially available piezoelectric tiles – Navy Type III and Navy Type V – analytical models for the coupled electromechanical system are formulated. The harvesting potential of the tiles is then studied under conditions of both deterministic and carefully developed random excitation profiles for three distinct cases: linear, monostable nonlinear and an array of monostable nonlinear tiles on adjacent steps with linear coupling between them. The results indicate enhanced power output when the tiles are: (1) placed on stairways, (2) uncoupled and (3) subjected to excitation profiles with stochastic frequency. In addition, the Navy Type V tiles are seen to outperform the Navy Type III tiles. Finally, the strongly nonlinear regime outperforms the linear one suggesting that the realisation of commercially available piezoelectric tiles with appropriately tailored nonlinear characteristics will likely have a significant impact on energy harvesting from pedestrian traffic.

ScAlN MEMS Cantilevers for Vibrational Energy Harvesting Purposes

2017 ◽  
Vol 26 (1) ◽  
pp. 102-112 ◽  
Author(s):  
P. M. Mayrhofer ◽  
C. Rehlendt ◽  
M. Fischeneder ◽  
M. Kucera ◽  
E. Wistrela ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Vibrational Energy ◽  
Mems Cantilevers ◽  
Vibrational Energy Harvesting
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