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Title: Bidirectional Piezoelectric Energy Harvester
Authors: Čeponis, Andrius
Mažeika, Dalius
Kilikevičius, Artūras
Keywords: energy harvesting
bidirectional excitation
cantilever array
Issue Date: 2019
Publisher: MDPI
Citation: Čeponis, A.; Mažeika, D.; Kilikevičius, A. Bidirectional Piezoelectric Energy Harvester. Sensors 2019, 19, 3845.
Series/Report no.: 19;18
Abstract: This paper represents a numerical and experimental investigation of the bidirectional piezoelectric energy harvester. The harvester can harvest energy from the vibrating base in two perpendicular directions. The introduced harvester consists of two cantilevers that are connected by a particular angle and two seismic masses. The first mass is placed at a free end of the harvester while the second mass is fixed at the joining point of the cantilevers. The piezoelectric energy harvester employs the first and the second out of plane bending modes. The numerical investigation was carried out to obtain optimal geometrical parameters and to calculate the mechanical and electrical characteristics of the harvester. The energy harvester can provide stable output power during harmonic and impact-based excitation in two directions. The results of the investigations showed that energy harvester provides a maximum output power of 16.85 µW and 15.9 4 µW when the base has harmonic vibrations in y and z directions, respectively. Maximum output of 4.059 nW/N and 3.1 nW/N in y and z directions were obtained in case of impact based excitation
Description: This article belongs to the Special Issue Energy Harvesting and Energy-Neutral IoT Devices and Systems
URI: http://dspace.vgtu.lt/handle/1/3957
ISSN: 1424-8220
Appears in Collections:Moksliniai straipsniai / Research articles

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