太平哨电站泄洪坝弧形闸门振动试验研究  

Study of Vibration Test on Radial Gates at Taipingshao Power Station's Spillway Dam

作　　者：赵振华[1] 张宇飞[1] 王山山[1] 

机构地区：[1]河海大学力学与材料学院,南京210098

出　　处：《三峡大学学报（自然科学版）》2015年第3期19-22,共4页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金(11132003)

摘　　要：通过对太平哨电站泄洪坝10号和17号弧形闸门的振动试验,分别测得了闸门在空载和有载工况下的动力特性以及闸门开启下落过程的加速度响应.结果显示两孔闸门的基频很接近.同一闸门空载和有载工况下的基频也很接近,并且空载工况下的基频要大于有载工况下的基频.而有载工况下第一阶振型的阻尼要大于空载工况下第一阶振型的阻尼.还得到了闸门振动加速度响应与开度的关系曲线.显示闸门在小开度下振动加速度较大,指出了闸门开启运行时的最不利泄流位置,为其它孔闸门开启运行提供了依据.Through the vibration test on the radial gates#10and#17at the spillway dam of Taipingshao hydropower station,the gates＇ dynamic characteristics under the conditions of no-load and load as well as the acceleration response of the movement under the conditions of gate open and whereabouts,are obtained respectively.Results show that the fundamental frequency of the two gates is very close;the gates＇ fundamental frequencies under the conditions of no-load and load is also very close;and the fundamental frequency under no load condition is greater.But the damping of the first vibration mode under load is greater than no load one.What＇s more,the relation curve of gate＇s vibration acceleration and opening is obtained too.The results show that the gate＇s vibration acceleration at the small opening is larger and pointing out the worst discharge position of the gates opening for operation,so as to provide credentials for other gates＇ opening.

关 键 词：弧形闸门 振动试验 动力特性 动力响应 加速度 

分 类 号：TV663.2[水利工程—水利水电工程]