引水管道阀门的动水荷载特征与破坏分析  

Analysis of Hydrodynamic Loads and Fatigue Failure of Valve in Intake Pipe

作　　者：练继建[1] 安刚[1] 杨令强[1] 万五一[1] 崔广涛[1] 

机构地区：[1]天津大学水利水电工程系,天津300072

出　　处：《水利水电技术》2001年第9期10-13,共4页Water Resources and Hydropower Engineering

摘　　要：针对引水管道内压力波动诱发强烈振动问题,研究了水电站或泵站蝶阀开启状态时所承受的水流时均和脉动荷载特征,计算了水力诱发阀门的振动响应,分析了阀门销轴等构件的疲劳效应和阀门突然关闭对管道阀门门体的影响.研究成果可为工程设计和安全运行提供依据.In the paper,the average and fluctuating dynamic loads acting on the butterfly valve in a hydropower station intake pipe are tested and analyzed.The response of flow-induced vibration of the butterfly valve is calculated.The fatigue failure effects of the valve bolt and water hammer action on valve and pipe by sudden closure are analyzed.The investigation results can provide a scientific basis for valve design and safe operation.WaterResourcesandHydropowerEngineeringVol.32No.9

关 键 词：引水管道 闸门 动水荷载 疲劳破坏 振动响应 

分 类 号：TV134[水利工程—水力学及河流动力学]