上卧式闸门水弹性振动试验研究  

Hydro-Elastic Vibration Test of a Lying-Up Gate

作　　者：顾云 严根华[2] 赵建平[2] 

机构地区：[1]上海市青草沙原水工程有限公司,上海201206 [2]南京水利科学研究院,南京210029

出　　处：《振动．测试与诊断》2009年第3期333-339,共7页Journal of Vibration,Measurement & Diagnosis

摘　　要：为了研究新型上卧式工作闸门水弹性振动问题,考查水闸在引(排)水不同运行工况下作用于闸门结构的水动力荷载,取得了脉动压力量级及谱特征,并获得了该类闸门的最大脉动压力系数,为同类闸门动荷载设计取值提供了参考依据。此外,分析了闸门结构的静动力特性,论证了闸门启闭杆的动力稳定性。通过水弹性振动模型取得闸门流激振动响应特征,揭示了闸门振动的性质、量级及其危害,提出了控制闸门振动、确保闸门安全运行的措施和方法。Flow-induced vibration characteristics of a new type of lying up gate were studied. The hydrodynamic loads acting on the gate under different operating conditions were investigated,and the value and spectral density of the pulsating pressure were obtained,as well as the maximum coefficient of the pulsating pressure,which provided references for design of similar gates. Besides,the static and dynamic characteristics of the gate structural were studied,and dynamic stability of hoist rod of the gate was analyzed. Response characteristics of the flow-induced gate vibration were discovered by using a hydro-elastic vibration model. The vibration characteristics,levels and its harm were revealed,methods for controlling the vibration and insuring the gate operation safety were presented.

关 键 词：上卧式闸门 水动力荷载 静动力特性 流激振动响应 稳定性分析 结构修改和优化 

分 类 号：TV663[水利工程—水利水电工程]