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1. Experiment research on influence of guide vane on vortex-induced vibration characteristics of bluff section | |||
BAI Hua,WANG Han,WEI Yangyang | |||
Transportation Engineering 20 June 2022 | |||
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Abstract:In order to study the effect of guide vane on the vortex-induced vibration characteristics of blunt steel box girder section, this paper first compares the vortex-induced vibration response of the original blunt steel box girder section and the blunt box girder with three different sizes and forms of guide vanes by wind tunnel test. Secondly, the vortex-induced vibration responses of blunt box girders with three different forms and sizes of guide vanes are compared by numerical simulation. Finally, through the comparative analysis of the flow field of the original blunt body section and the inverted L-shaped guide vane with different sizes, the reason for the vortex vibration phenomenon of the blunt body section is found. The results show that the horizontal guide plate has good vibration suppression effect on vertical bending vortex vibration, but it will increase the vibration amplitude of torsional vortex vibration. The inverted L-shaped guide vane has a very obvious suppression effect on the torsional vortex vibration and vertical bending vortex vibration of the blunt body section. By comparing the flow field, it is found that the vortex at the top of the section is eliminated, and the large-scale vortex at the tail is decomposed into smaller-scale vortex, so as to achieve the purpose of suppressing vortex vibration. | |||
TO cite this article:BAI Hua,WANG Han,WEI Yangyang. Experiment research on influence of guide vane on vortex-induced vibration characteristics of bluff section[OL].[20 June 2022] http://en.paper.edu.cn/en_releasepaper/content/4758007 |
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