Design of a 2DOF vibrational energy harvesting device

Title
Design of a 2DOF vibrational energy harvesting device
Authors
장선준E. RustighiM.J.Breman이윤표H-J Jung
Keywords
Vibrational energy; harvest device; rigid body; bandwidth; efficiency; equivalent Inpedance; spring; electromagnetic; exteranal and internal; load resistance
Issue Date
2011-03
Publisher
Journal of intelligent material systems and structures
Citation
VOL 22, NO 5, 443-448
Abstract
A novel design method for a two degree-of-freedom (2DOF) energy harvesting device is studied. The energy harvesting device is modelled as a rigid body supported by two parallel sets of springs and dampers. The impedance expression for the model has been developed by utilizing the concept of the inerter. The proposed design method deals with tuning two resonant peaks and equalizing the harvested power at those frequencies. As a result, the proposed energy harvesting device is particularly effective at two frequencies and has increased bandwidth as well as reduced size and weight in comparison with previous SDOF devices. A numerical design example is provided to show effectiveness of the proposed method.
URI
http://pubs.kist.re.kr/handle/201004/38783
ISSN
1045-389X
Appears in Collections:
KIST Publication > Article
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