Theoretical analysis of a vibration-magnetic piezoelectric energy harvester scavenging for vortex-induced vibration. Issue 1 (22nd October 2021)

• Record Type: Journal Article
• Authors: Hou, Chengwei; Li, Chunhui; Yang, Chongqiu; Yang, Xianhai; Zhang, Leian; Song, Rujun
• Is Part Of: Ferroelectrics. Volume 582:Issue 1(2021)
• Page Start: 141
• Page End: 154
• Publication Date: 2021-10-22
• Subjects: Fluid energy -- vortex-induced vibration -- piezoelectric energy harvester -- vibrational magnet; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2021.1951042
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: In this study, a vertical vibration magnet is introduced into piezoelectric energy harvester. The parameters of the vertical vibration magnet ( Bm ) including the natural frequency ( wm ), the volume ( Vb ), and the mass ( M 2 ), are mainly discussed. In the different load resistance region, wm can produce different effect on the output power of the harvester. The active wind resonance region shifts to the left by increasing M 2 or Vb . By introducing a vibration magnet, the active wind resonance region can be controlled by the vibration magnet, which can provide a potential method to improving the flexibility of PEHs in practical application.