弧形闸门局部开启动力特性分析

以某航电枢纽工程弧形工作闸门的动力问题为背景，介绍了结构自振分析的基本原理，并分别用子空间迭代法和Unsymmetric法对闸门在不同开度程度下的自振特性进行了数值模拟，同时对不同开度下流固耦合效应对自振频率的影响进行了分析，结果表明闸门面板水头越高，流固耦合效应影响越大．最后结合水力学模型的试验成果，对闸门的动力稳定性进行了分析。

The Dynamic Characteristic Analysis on the Radial Gate Under Different Operating Conditions

This paper, based on the dynamic problem of radial gate,introduced the basic theory of the structural self-vibration analysis,used the sub-space iteration and the unsymmetric methods to simulate the instrinsic vibrating property under the operating conditions of the radial gate,and also analysed the effect of the fluid-structure coupling on its dynamic property under the different operating conditions,the result indicates that the higher of the water head before the gate,the bigger of the effect of the fluid-structure coupling.Then combining with the hydraulic model test, we analyse the dynamic stability of this gate.