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Piedra del Aguila大坝溢洪道上所出现的涡漩和破坏性的振动问题已通过模型试验得到了满意地解决,并在1985年1月的论文中曾作了部分论述,唯该论文的主要内容为空穴模拟问题.本文将论述有关闸门的防振和其它方面的问题及其试验.Piedra溢洪道的15×18.5米的大型弧型闸门和在水库蓄水期间,运行时间多于一年以上的底孔3×2米的检修和工作闸门,均有出现振动破坏的危险.对于弧形闸门的振动,其激发源为进口段出现的强烈涡漩,而底孔闸门则为当一孔关闭,另一孔半开时所出现的分离涡漩,或者是闸底射流的不稳定所导致.
The vortex and destructive vibration problems in the spillway of the Piedra del Aguila dam have been satisfactorily solved through model tests and were partially discussed in the January 1985 paper, the main content of which is Cavitation Simulation Problems This section will discuss the anti-vibration and other aspects of the gate and its testing. The 15 × 18.5 m large arc gate of the Piedra spillway and the large arc gate that operates for more than a year during the impoundment of the reservoir Hole 3 × 2 meters overhaul and work gate, there is the risk of vibration damage.For the vibration of the arc gate, the excitation source for the import section appears strong vortex, while the bottom gate is closed when a hole, and the other The separation vortex that appears when the hole is half-open, or the instability of the gate jet.