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Study on gate vibration of TGP sediment-flushing outlets by hydroelastic model
Author(s): 
Pages: 32-35
Year: Issue:  4
Journal: JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTITUTE

Keyword:  三峡电站排沙孔垂直提升闸门动力特性水弹性模型流激振动;
Abstract: 采用比尺为13.37的全水弹性模型,研究了三峡电站排沙底孔垂直提升闸门的动力特性、脉动压力和流激振动特性,并对不同上下游水位和门后通气与否对闸门振动的影响作了对比研究,同时还探讨了止水对闸门振动的影响.研究结果表明:闸门不会发生水力共振;通气时闸门上的脉动压力比不通气时小,频谱改变;在上游水位150.0 m、下游水位67.5 m条件下,门后通气可显著减小闸门振动,在其它水位条件下,由于门后水跃对闸门的冲击,门后通气反而加剧闸门振动.
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