大跨度平面闸门的自振特性研究

以西南水闸的动力学问题为背景，考虑水体对闸门自振特性的影响，应用ANSYS软件对大跨度平面闸门的自振特性进行了详细的分析研究。结果表明：按平面简支梁与按空间结构计算的结果存在一定差异，流固耦合效应对闸门结构自振特性的影响不容忽视，闸门边界约束情况对其自振特性有一定影响，改善闸门结构设计方案能提高闸门的抗振性能，该结果对同类闸门结构的设计计算有参考意义。

Study on the Self-vibration Characteristics of Long-span Plane Gate

In this paper,the software ANSYS is applied to study in detail the self-vibration characteristics of long-span plane gate with consideration of the effect of fluid-structure coupling against the background of sluices dynamic problems in the southwestern China.The results show that there is difference between the calculation by the model of girder and that of space structure.Therefore,the effect of fluid-structure coupling can't be neglected,boundary conditions of gate structure also have affect on the self-vibration characteristics,and the anti-vibration can be strengthened through improvement of structure design can.The study conclusion is valuable for design and calculation of similar gate structure.