Abstract：The paper divides self-induced vertical vibration of plane gate into two types: flow fluctuation and fluid inertial mechanism and galloping mechanism based on the vibration mechanism. Vibration stability and mechanism of the two kinds of vibration are researched in which the influence of Scruton number to vibration stability of gate is focused on. Finally two different stability indexes related to Scruton number is given based on two kinds of vibration.
2012, Vol. 31 
