Autonomous Resonance‐Tuning Mechanism for Environmental Adaptive Energy Harvesting

Abstract: An innovative autonomous resonance‐tuning (ART) energy harvester is reported that utilizes adaptive clamping systems driven by intrinsic mechanical mechanisms without outsourcing additional energy. The adaptive clamping system modulates the natural frequency of the harvester's main beam (MB) by adjusting the clamping position of the MB. The pulling force induced by the resonance vibration of the tuning beam (TB) provides the driving force for operating the adaptive clamp. The ART mechanism is possible by matching the natural frequencies of the TB and clamped MB. Detailed evaluations are conducted on the optimization of the adaptive clamp tolerance and TB design to increase the pulling force. The energy harvester exhibits an ultrawide resonance bandwidth of over 30 Hz in the commonly accessible low vibration frequency range (<100 Hz) owing to the ART function. The practical feasibility is demonstrated by evaluating the ART performance under both frequency and acceleration‐variant conditions and powering a location tracking sensor.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Autonomous Resonance‐Tuning Mechanism for Environmental Adaptive Energy Harvesting ; day:28 ; month:11 ; year:2022 ; extent:11 ; Advanced science ; (28.11.2022) (gesamt 11)

Contributors, Places and Time

• Creator: Lee, Dong‐Gyu ; Shin, Joonchul ; Kim, Hyun Soo ; Hur, Sunghoon ; Sun, Shuailing ; Jang, Ji‐Soo ; Chang, Sangmi ; Jung, Inki ; Nahm, Sahn ; Kang, Heemin ; Kang, Chong‐Yun ; Kim, Sangtae ; Baik, Jeong Min ; Yoo, Il‐Ryeol ; Cho, Kyung‐Hoon ; Song, Hyun‐Cheol

Further information

• DOI: 10.1002/advs.202205179
• URN: urn:nbn:de:101:1-2022112914084982399930
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:32 AM CEST