{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T13:40:43Z","timestamp":1781617243171,"version":"3.54.5"},"reference-count":33,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2015,2,27]],"date-time":"2015-02-27T00:00:00Z","timestamp":1424995200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Science and Technology","award":["103-2221-E-110-086"],"award-info":[{"award-number":["103-2221-E-110-086"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Micromachines"],"abstract":"<jats:p>The objective of this study is to develop and analyze a nonlinear suspended energy harvester (NSEH) that can be mounted on a rotating wheel. The device comprises a permanent magnet as a mass in the kinetic system, two springs, and two coil sets. The mass vibrates along the transverse direction because of the variations in gravitational force. This research establishes nonlinear vibration equations based on the resonance frequency variation of the energy harvester; these equations are used for analyzing the power generation and vibration of the harvester. The kinetic behaviors can be determined according to the stiffness in the two directions of the two suspended springs. Electromagnetic damping is examined to estimate the power output and effect of the kinematic behaviors on NSEH. The power output of the NSEH with a 52 \u2126 resistor connected in series ranged from approximately 30 to 4200 \u03bcW at wheel speeds that ranged from nearly 200 to 900 rpm.<\/jats:p>","DOI":"10.3390\/mi6030312","type":"journal-article","created":{"date-parts":[[2015,2,27]],"date-time":"2015-02-27T10:08:39Z","timestamp":1425031719000},"page":"312-327","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["A Nonlinear Suspended Energy Harvester for a Tire Pressure Monitoring System"],"prefix":"10.3390","volume":"6","author":[{"given":"Yu-Jen","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Mechanical and Electromechanical Engineering, National Sun Yat-sen University, No. 70 Lienhai Road, Kaohsiung 80424, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chung-De","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Aerospace and Systems Engineering, Feng Chia University, No. 100 Wenhwa Road, Seatwen, Taichung 40724, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chung-Chih","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Computer-Aided Engineering, National Formosa University,  Yunlin 632, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jui-Hsin","family":"Yu","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Electromechanical Engineering, National Sun Yat-sen University, No. 70 Lienhai Road, Kaohsiung 80424, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2015,2,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1177\/0583102404043275","article-title":"A review of power harvesting from vibration using piezoelectric materials","volume":"36","author":"Sodano","year":"2004","journal-title":"Shock Vib. 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