{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,6]],"date-time":"2026-06-06T00:49:22Z","timestamp":1780706962571,"version":"3.54.1"},"reference-count":68,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2022,10,9]],"date-time":"2022-10-09T00:00:00Z","timestamp":1665273600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"EUR EIPHI","award":["ANR 17-EURE-0002"],"award-info":[{"award-number":["ANR 17-EURE-0002"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The functionalization of internal resonance (IR) is theoretically and experimentally demonstrated on a nonlinear hybrid vibration energy harvester (HVEH) based on piezoelectric (PE) and electromagnetic (EM) transductions. This nonlinear phenomenon is tuned by adjusting the gaps between the moving magnets of the structure, enabling 1:1 and 2:1 IR. The experimental results prove that the activation of 2:1 IR with a realistic excitation amplitude allows the improvement of both the frequency bandwidth (BW) and the harvested power (HP) by 300% and 100%, respectively compared to the case away from IR. These remarkable results open the way towards a very large scale integration of coupled resonators with simultaneous internal resonances.<\/jats:p>","DOI":"10.3390\/s22197657","type":"journal-article","created":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T05:12:21Z","timestamp":1665378741000},"page":"7657","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Functionalization of Internal Resonance in Magnetically Coupled Resonators for Highly Efficient and Wideband Hybrid Vibration Energy Harvesting"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9972-9197","authenticated-orcid":false,"given":"Kaouthar","family":"Aouali","sequence":"first","affiliation":[{"name":"Department of Applied Mechanics, FEMTO-ST Institute, CNRS\/UFC\/ENSMM\/ UTBM, University Bourgogne Franche-Comt\u00e9, 25000 Besan\u00e7on, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8146-7328","authenticated-orcid":false,"given":"Najib","family":"Kacem","sequence":"additional","affiliation":[{"name":"Department of Applied Mechanics, FEMTO-ST Institute, CNRS\/UFC\/ENSMM\/ UTBM, University Bourgogne Franche-Comt\u00e9, 25000 Besan\u00e7on, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8223-1889","authenticated-orcid":false,"given":"Noureddine","family":"Bouhaddi","sequence":"additional","affiliation":[{"name":"Department of Applied Mechanics, FEMTO-ST Institute, CNRS\/UFC\/ENSMM\/ UTBM, University Bourgogne Franche-Comt\u00e9, 25000 Besan\u00e7on, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1131","DOI":"10.1088\/0964-1726\/13\/5\/018","article-title":"A piezoelectric vibration based generator for wireless electronics","volume":"13","author":"Roundy","year":"2004","journal-title":"Smart Mater. 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