Dynamics of a 3D Piezo-Magneto-Elastic Energy Harvester with Axisymmetric Multi-Stability

cris.lastimport.wos2025-10-24T08:48:09Z
dc.abstract.enIn this investigation, a three-dimensional (3D) axisymmetric potential well-based nonlinear piezoelectric energy harvester is proposed to increase the broadband frequency response under lowstrength planar external excitation. Here, a two-dimensional (2D) planar bi-stable Duffing potential is generalized into three dimensions by utilizing axial symmetry. The resulting axisymmetric potential well has infinitely many stable equilibria and one unstable equilibria at the highest point of the potential barrier for this cantilevered oscillator. Dynamics of such a 3D piezoelectric harvester with axisymmetric multi-stability are studied under planar circular excitation motion. Bifurcations of average power harvested from the two pairs of piezoelectric patches are presented against the frequency variation. The results show the presence of several branches of large-amplitude cross-well type period-1 and subharmonic solutions. Subharmonics involved in such responses are verified from the Fourier spectra of the solutions. The identified subharmonic solutions perform interesting patterns of curvilinear oscillations, which do not cross the potential barrier through its highest point. These solutions can completely or partially avoid the climbing of the potential barrier, thereby requiring low input excitation energy for barrier crossing. The influence of excitation amplitude on the bifurcations of normalized power is also investigated. Through multiple solution branches of subharmonic solutions, producing comparable power to the period-1 branch, broadband frequency response characteristics of such a 3D axisymmetically multi-stable harvester are highlighted. Datasets contains: The CSV text files contain the datasets included in the figures in the article, which are used as references. The video file trajectories.avi contains an animated trace of four signals in XY systems.
dc.affiliationLublin University of Technology
dc.affiliationLublin University of Technology
dc.affiliationLublin University of Technology
dc.affiliationLublin University of Technology, State Higher School of Vocational Education in Zamość
dc.contributor.authorLitak, Grzegorz
dc.contributor.authorKlimek, Mariusz
dc.contributor.authorGiri, Abhijeet
dc.contributor.authorWolszczak, Piotr
dc.date.accessioned2025-07-29T06:58:20Z
dc.date.available2025-07-29T06:58:20Z
dc.date.issued2025-07-22
dc.description.fininstitutionNational Science Center
dc.description.projectSHENG-2
dc.identifier.doi10.5281/zenodo.16335984
dc.identifier.project2021/40/Q/ST8/00362
dc.identifier.urihttps://hdl.handle.net/20.500.14629/18591
dc.languageen
dc.relation.nameZenodo
dc.relation.publicationhttps://www.mdpi.com/2072-666X/15/7/906
dc.relation.urlhttps://zenodo.org/records/16335985
dc.rightsCC-BY-4.0
dc.subject.enpiezoelectric
dc.subject.enenergy harvesting
dc.subject.ennonlinear vibrations
dc.subject.enaxisymmetric
dc.subject.enmulti-stable
dc.titleDynamics of a 3D Piezo-Magneto-Elastic Energy Harvester with Axisymmetric Multi-Stability
dc.typeDescriptionResearchData
dspace.entity.typePublicationen
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