基于ANSYS的弧形钢闸门自振特性分析  

Analysis of natural vibration frequency of steel arch-gate

作　　者：范海洋 曹海瑞 丁峰[1] 王宗刚[1] FAN Haiyang;CAO Hairui;DING Feng;WANG Zonggang(Beijing Institute of Water,Beijing 100048,China;China Construction Eighth Engineering Division,Nanjing 210046,Jiangsu,China)

机构地区：[1]北京市水利规划设计研究院,北京100048 [2]中建八局第三建设有限公司,江苏南京210046

出　　处：《水利水电技术（中英文）》2023年第S02期187-193,共7页Water Resources and Hydropower Engineering

摘　　要：以某工程弧形钢闸门为例,通过ANSYS软件构建弧形钢闸门有限元模型,并进行闸门闭门和刚刚提升两种状态时前10阶的自振特性分析。结果表明:闸门结构各阶振动频率的振型表现有明显不同,闭门状态时闸门结构和水流脉动频率发生共振的可能性较小,刚刚提升状态时发生共振的可能性增大;随着阶数的增加,闸门自振频率也逐渐增大,应采取必要的工程措施,减少闸门结构和水流脉动频率发生共振的可能性。Taking the radial steel gate of a certain project as an example,it builds the finite element model of the steel arch-gate by ANSYS software,and analyses the first 10 steps of the natural vibration characteristics of the gate when the gate is closed and just lifted.The result show that the performance of vibration mode of each vibration frequency of gate structure is obviously different;When the gate is closed,the possibility of resonance between the gate structure and the flow pulsation frequency is small,and the possibility of resonance is increased when the gate is just lifted;With the increase of the order,the natural vibration frequency of the gate increases gradually;Necessary engineering measures shall be taken to reduce the possibility of resonance of gate structure and flow pulsation frequency.

关 键 词：ANSYS 弧形钢闸门 有限元模型 自振特性 

分 类 号：TV9[水利工程—水利水电工程]