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Accession number;99A0228797
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| Title;A Study on Effects of Free End Condition on Vortex-Induced Vibration of Circular Tower at a High Wind Speed. |
| Author;
KITAGAWA TETSUYA
(Nihon Univ., Coll. of Sci. and Technol.)
FUJINO YOZO
(Univ. of Tokyo)
KIMURA KICHIRO
(Univ. of Tokyo)
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Journal Title;Proceedings of JSCE (Japan Society of Civil Engineers)
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Journal Code:F0028A
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ISSN:0289-7806
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VOL.;NO.612;PAGE.229-238(1999)
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| Figure&Table&Reference;FIG.22, REF.11 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Wind tunnel experiments using a circular cylinder rocking model were conducted to investigate the characteristics of the vortex-induced vibration at a high wind speed. Attaching a thin circular disk on the model top to modify the flow passing the free-end, the response of that vibration was diminished and the occurrence wind speed tended to be rather low as increase of the disk diameter. This reason was clarified by measurement of the wake fluctuation around the free-end: As the disk increased, the generation of the tip-associated vortex which had been considered as the cause of that vibration weakened and its frequency gradually increased. (author abst.) |
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