船闸平板输水阀门动力优化及流激振动特性分析  

Dynamic optimization and flow-induced vibration study on plate valve of ship lock

作　　者：王新[1] 严秀俊[2] 

机构地区：[1]南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏南京210029 [2]南京水利科学研究院通航建筑物建设技术交通行业重点实验室,江苏南京210029

出　　处：《水运工程》2013年第12期151-154,176,共5页Port & Waterway Engineering

基　　金：国家自然科学基金(51109143;51209144);江苏省自然科学基金(BK2011109);南京水利科学研究院基金(Y113004)

摘　　要：针对船闸大尺寸平板输水阀门的流激振动问题,应用模态试验与有限元数值模拟相结合的分析方法研究阀门的自振特性,指导阀门结构动力优化设计,通过水弹性模型试验研究阀门的流激振动特性。研究表明:阀门自振频率的试验值和计算值吻合较好,振型完全一致;结构优化后基频显著提高,已完全脱离了水流脉动的高能区,流激振动响应较小,不至于产生危害。For the flow-induced vibration problem of the large-scale plate valve of a ship lock, we employ the method of mode test and FEM simulation to study the self-vibration characteristics of the plate valve. The result is applied to conduct the dynamic optimization design of the structure. The hydro-elastic model test is conducted to study the flow-induced vibration characteristics of the valve. It is found that the test value and the calculation value of the self-vibration frequency and the mode shape of the valve are consistent. The basic frequency is improved obviously, which avoids the high-energy region of the/low pulsation. The flow-induced vibration response is relatively small and will not induce harms.

关 键 词：船闸 平板阀门 自振特性 流激振动 模型试验 

分 类 号：U641[交通运输工程—船舶及航道工程]