Achieving increased bandwidth for 4 degree of freedom self-tuning energy harvester
Journal article, 2018

The frequency response of a self-tuning energy harvester composed of two piezoelectric cantilevers connected by a middle beam with a sliding mass is investigated. Measurements show that incorporation of a free-sliding mass increases the bandwidth. Using an analytical model, the system is explained through close investigation of the resonance modes. Resonance mode behavior further suggests that, by breaking the symmetry of the system, even broader bandwidths are achievable.

Energy harvesting

Selftuning

Piezoelectric

Intelligent wireless sensors

Author

Henrik Staaf

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Anderson David Smith

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Elof Köhler

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Per Lundgren

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Peter Folkow

Chalmers, Mechanics and Maritime Sciences, Dynamics

Peter Enoksson

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Journal of Sound and Vibration

0022-460X (ISSN) 1095-8568 (eISSN)

Vol. 420 165-173

Subject Categories

Accelerator Physics and Instrumentation

Other Physics Topics

Other Electrical Engineering, Electronic Engineering, Information Engineering

Driving Forces

Sustainable development

Areas of Advance

Transport

Production

Energy

DOI

10.1016/j.jsv.2018.01.045

More information

Latest update

8/28/2018