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平面闸门垂向自激振动机理和稳定性研究
引用本文:郭桂祯,张雅卓,练继建.平面闸门垂向自激振动机理和稳定性研究[J].振动与冲击,2012,31(9):98-101.
作者姓名:郭桂祯  张雅卓  练继建
作者单位:.天津大学 建筑工程学院,天津 300072
摘    要:通过分析平面闸门垂向振动机理将平面闸门垂向自激振动分为两类:流量系数及流体惯性引发振动与驰振引发振动,并对两种自激振动的机理与振动稳定性进行研究,重点考察Scruton数对闸门振动稳定性的影响,提出关于Scruton数的稳定性指标,实验结果与稳定性指标相吻合。

关 键 词:驰振    scruton数    折算流速    升力系数  
收稿时间:2011-6-27
修稿时间:2011-11-6

Mechanism and stability of self-induced vertical vibration of plane gates
GUO Gui-zhen , ZHANG Ya-zhuo , LIAN Ji-jian.Mechanism and stability of self-induced vertical vibration of plane gates[J].Journal of Vibration and Shock,2012,31(9):98-101.
Authors:GUO Gui-zhen  ZHANG Ya-zhuo  LIAN Ji-jian
Affiliation:Tianjin University, Tianjin 300072,China
Abstract:According to the vibration mechanism,the self-induced vertical vibration of plane gate was divided into two types: flow fluctuation and fluid inertial mechanism and galloping mechanism.Vibration stability and mechanism of the two kinds of vibrations were studied respectively and the influence of Scruton number on vibration stability of gate was focused on.Two different stability indexes related to Scruton number were given based on the two kinds of vibrations mentioned above.
Keywords:galloping  scruton number  reduced velocity  lift coefficient
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