Abstract: Operation accidents often occur in gate, hoist and other metal structures at dam discharge works, most of which are structural static damage, such as aging and corrosion of gate. But the consequences of gate damage caused by strong vibration with the effect of hydrodynamic load are more serious. Flow-induced vibration of the gate is a widespread problem, which has various forms and of great hazard. By detectiog of flow-induced vibration parameter, the vibration level of gate can be obtained. Based on this, engineers could evaluate the safety of gate operation, find out the cause of vibration, and then put forward measures to control or eliminate strong vibration and ensure the safe operation of gate.

Key words: sluice gate, flow-induced vibration monitoring, strong vibration control

摘要： 大坝泄水建筑物闸门、启闭机等金属结构的运行事故频发，集中表现在闸门老化、腐蚀等结构静态损伤，但更为严重的是闸门结构因动水荷载作用产生强烈振动而破坏，其后果也比较严重。工程上，闸门的流激振动问题广泛存在，表现形式多种多样，工程危害很大。通过现场闸门流激振动参数检测，可以取得闸门振动量级，评估闸门运行的安全性，寻找产生振动的原因，进而提出控制和消除强烈振动的措施，确保闸门结构的运行安全。

关键词: 闸门, 流激振动监测, 强烈振动控制