Smart design selftuning piezoelectric energy harvester intended for gas turbines. (November 2015)

• Record Type: Journal Article
• Authors: Staaf, L G H; Köhler, E; Soeiro, M; Lundgren, P; Enoksson, P
• Is Part Of: Journal of physics. Number 660(2015)
• Publication Date: 2015-11
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/660/1/012125
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Piezoelectric energy harvesting on a gas turbine implies constraints like high temperature tolerance, size limitation and a particular range of vibrations to utilise. In order to be able to operate under these conditions a harvester needs to be small and efficient and to respond to the appropriate range of frequencies. We present the design, simulation and measurements for a clamped-clamped coupled piezoelectric harvester with a free-sliding weight which adds self-tuning for improved response within the range of vibrations from the gas tufbine. We show a peak open circuit voltage of 11.7 V and a 3dB bandwidth of 12 Hz.