角木塘弧形闸门流激振动响应特性研究  

Characteristics Research on Flow-induced Vibration Response of Jiaomutang Radial Gate

作　　者：郭星锐 王均星[1] 周招 杜金威 GUO Xing-rui;WANG Jun-xing;ZHOU Zhao;DU Jin-wei(State key Laboratory of Water Resources and Hydro power Engineering Science, Wuhan University, Wuhan 430072, China)

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室

出　　处：《水电能源科学》2019年第8期170-173,共4页Water Resources and Power

摘　　要：为研究角木塘水电站溢洪道表孔弧形闸门出现的流激振动现象,通过制作几何比尺为1∶30的完全水弹性相似模型进行相关试验,研究弧形闸门在有无止水时的应力响应和加速度响应特性,以得到闸门在不同开度下应力的规律性变化。试验结果表明,静应力在无止水时的压应力大于有止水时的压应力,动应力在有止水时随闸门开度的增大先增加再减小,加速度在无止水时最大值为0.761g,有止水时最大值为0.699g,加装止水后加速度值减小,振动现象得到改善,动力响应满足闸门抗振设计要求。For studying the fluid-induced vibration on surface orifice radial gate of spillway in Jiaomutang Hydropower Station,fluid-induced vibration tests with a 1∶30 perfect hydroelasticity similar model were carried out to find the stress features as well as the acceleration responses under working conditions of well-working water sealing and weak water sealing.And then the regularity change of the stress with the different openings of the gate was obtained.Test results show that the compressive stress of static stress without water sealing is greater than that of water sealing.Under working conditions of well-working water sealing,the dynamic stress is firstly increased and then decreased with the increase of gate opening.The maximum acceleration is 0.761 g without water sealing,and the maximum acceleration is 0.699 g with water sealing.The acceleration decreases after installation of water sealing,and the vibration phenomenon has been improved.Thus,the dynamic responses meets the gate anti-vibration design requirements.

关 键 词：弧形闸门 流激振动 完全水弹性模型 止水 

分 类 号：TV131.61[水利工程—水力学及河流动力学]