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
Anderson David Smith
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Elof Köhler
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Per Lundgren
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Peter Folkow
Chalmers, Mechanics and Maritime Sciences (M2), Dynamics
Peter Enoksson
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Journal of Sound and Vibration
0022-460X (ISSN) 1095-8568 (eISSN)
Vol. 420 165-173Subject 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