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
2024-01-19T10:31:34Z
2024-01-19T10:31:34Z
2022-12-15
2023-01
2198-3844
https://pubs.kist.re.kr/handle/201004/114171
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.
English
Wiley-VCH Verlag
Autonomous Resonance-Tuning Mechanism for Environmental Adaptive Energy Harvesting
Article
10.1002/advs.202205179
1
Advanced Science, v.10, no.3
Advanced Science
10
3
Y
scie
scopus
000891163500001
2-s2.0-85142893081
Chemistry, Multidisciplinary
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Chemistry
Science & Technology - Other Topics
Materials Science
Article; Early Access
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INTERNET
adaptive clamps
autonomous resonance-tuning
energy harvesting
piezoelectric
tuning beam