Abstract
This paper proposes a dual-function electromagnetic (EM) damper, which simultaneously provides vibration damping and electrical power. A discontinuous conduction mode (DCM) buck-boost converter is utilized as the energy harvesting circuit due to its resistive feature, which enables the optimization of energy harvesting efficiency and vibration damping performance. This paper also presents a numerical study on its application in a full-scale bridge stay cable considering along-wind excitations. The numerical results reveal that the dual-function EM damper achieves a comparable vibration control performance as the optimal viscous damper in a broad wind speed range. Also, average output power of 82.5 mW to 2396.8 mW is harvested with high efficiencies in the wind speed range from 9m/s to 15m/s.
Original language | English |
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Title of host publication | Proceedings of the 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013 |
Publisher | Hokkaido University collection of Scholarly Academic Papers, HUSCAP |
Publication status | Published - 1 Jan 2013 |
Event | 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013 - Sapporo, Japan Duration: 11 Sept 2013 → 13 Sept 2013 |
Conference
Conference | 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013 |
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Country/Territory | Japan |
City | Sapporo |
Period | 11/09/13 → 13/09/13 |
Keywords
- Buck-boost
- Buffeting
- EM damper
- Energy harvesting
- Wind
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction