脉动流发生装置诱导弹性管束振动的实验研究  

Tests for pulsating flow generator-induced vibration of elastic tube bundle

作　　者：季家东 张经纬 高润淼 刘萍[1,2] 刘保银 陈卫强 JI Jiadong;ZHANG Jingwei;GAO Runmiao;LIU Ping;LIU Baoyin;CHEN Weiqiang(School of Mechanical Engineering,Anhui University of Science&Technology,Huainan 232001,China;Anhui Key Laboratory of Mine Intelligent Equipment and Technology,Anhui University of Science&Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001 [2]安徽理工大学,矿山智能装备与技术安徽省重点实验室,安徽淮南232001

出　　处：《振动与冲击》2021年第3期291-296,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金(51475268,11805005);安徽省自然科学基金面上项目(1908085ME160);安徽高校自然科学研究重点项目(KJ2018A0080)。

摘　　要：为了实现对换热器内弹性管束振动的有效激发和控制,提出了一种新型脉动流发生装置,搭建了脉动流诱导弹性管束振动测试实验台,测试了换热器内各排弹性管束在不同工况下的振动响应。结果表明:在脉动流发生装置诱导下,弹性管束主要有两个振动频率,一个频率基本不受入口流速的影响,另一个频率随入口流速的增加而增加;提出的脉动流发生装置,一方面使弹性管束的振动强度明显增加,另一方面在一定程度上解决了各排弹性管束振动不均的问题。In order to realize effective exciting and control of elastic tube bundle vibration in heat exchanger,a new pulsating flow generator was proposed,the test platform of pulsating flow-induced elastic tube bundle vibration was built,and vibration responses of elastic tube bundles in heat exchanger were measured under different working conditions.The results showed that under the inducement of pulsating flow generator,elastic tube bundle mainly has two vibration frequencies,one frequency is basically not affected by inlet flow rate,the other one increases with increase in inlet flow rate;on the one hand,the proposed pulsating flow generator makes vibration intensity of elastic tube bundle increase obviously,on the other hand,the uneven vibration problem of elastic tube bundles is solved to a certain extent.

关 键 词：弹性管束 换热器 脉动流发生装置 振动响应 

分 类 号：TH123[机械工程—机械设计及理论] TH172[机械工程—机械制造及自动化]