DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, In-Ho | ko |
dc.contributor.author | Jang, Seon-Jun | ko |
dc.contributor.author | Jung, Hyung-Jo | ko |
dc.date.accessioned | 2013-08-22T02:29:01Z | - |
dc.date.available | 2013-08-22T02:29:01Z | - |
dc.date.created | 2013-08-22 | - |
dc.date.created | 2013-08-22 | - |
dc.date.issued | 2013-07 | - |
dc.identifier.citation | SMART MATERIALS AND STRUCTURES, v.22, no.7 | - |
dc.identifier.issn | 0964-1726 | - |
dc.identifier.uri | http://hdl.handle.net/10203/175560 | - |
dc.description.abstract | In this paper, an innovative strategy for improving the performance of a recently developed rotational energy harvester is proposed. Its performance can be considerably enhanced by replacing the electromagnetic induction part, consisting of moving permanent magnets and a fixed solenoid coil, with a moving mass and a rotational generator (i.e., an electric motor). The proposed system is easily tuned to the natural frequency of a target structure using the position change of a proof mass. Owing to the high efficiency of the rotational generator, the device can more effectively harness electrical energy from the wind-induced vibration of a stay cable. Also, this new configuration makes the device more compact and geometrically tunable. In order to validate the effectiveness of the new configuration, a series of laboratory and field tests are carried out with the prototype of the proposed device, which is designed and fabricated based on the dynamic characteristics of the vibration of a stay cable installed in an in-service cable-stayed bridge. From the field test, it is observed that the normalized output power of the proposed system is 35.67 mW (m s(-2))(-2), while that of the original device is just 5.47 mW (m s(-2))(-2). These results show that the proposed device generates much more electrical energy than the original device. Moreover, it is verified that the proposed device can generate sufficient electricity to power a wireless sensor node placed on a cable under gentle-moderate wind conditions. | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | Performance enhancement of a rotational energy harvester utilizing wind-induced vibration of an inclined stay cable | - |
dc.type | Article | - |
dc.identifier.wosid | 000321034000005 | - |
dc.identifier.scopusid | 2-s2.0-84879928080 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 7 | - |
dc.citation.publicationname | SMART MATERIALS AND STRUCTURES | - |
dc.identifier.doi | 10.1088/0964-1726/22/7/075004 | - |
dc.contributor.localauthor | Jung, Hyung-Jo | - |
dc.contributor.nonIdAuthor | Kim, In-Ho | - |
dc.contributor.nonIdAuthor | Jang, Seon-Jun | - |
dc.type.journalArticle | Article | - |
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