升卧式卧倒闸门的自振特性  

Vibration Characteristics of Underwater Horizontal Gate

作　　者：鲍秋慧[1] 胡兆荣 孙蓬勃 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]浙江省水文局,浙江杭州310009 [3]河北省水利水电第二勘测设计研究院,河北石家庄050000

出　　处：《人民黄河》2013年第2期114-115,119,共3页Yellow River

基　　金：江苏省自然科学基金资助项目(BK2011744)

摘　　要：基于水力学模型验证的有限元数学模型,分析了闸门和水体之间的流固耦合作用,流固耦合对闸门自振频率的影响较为显著。闸门全开时,随着相对水深的增加,闸门的自振频率逐渐减小,基频下降的幅度随相对水深的增加而越来越小;闸门直立全关挡水时,基频下降的幅度随相对水深的增加而越来越大。Based on the Finite Element Model and testing by the hydraulic model, the analysis focused on the effect of the fluid-structure interaction between the gate and water. The results show that the fluid-structure interaction has significant impact on the natural frequency of the hydraulic gate. When the gate is fully opened, with increasing of the relative depth, the natural frequency will reduce gradually and the decrease amplitude of fundamental frequency gets smaller. In opposite, it gets bigger while the gate is upright fully closed.

关 键 词：卧倒闸门 振动 自振频率 流固耦合 

分 类 号：TV663[水利工程—水利水电工程]