原子能科学技术2017，Vol.51Issue(8)：1379-1386,8.DOI:10.7538/yzk.2017.51.08.1379
支承板支撑多跨管束流致振动试验研究
Experimental Study on Flow-induced Vibration of Multi-span Tube Bundle with Tube Support Plate
方夏鋆 1祖洪彪 2熊珍琴 1张可丰 2顾汉洋 1谢永诚2
作者信息
- 1. 上海交通大学 核科学与工程学院,上海 200240
- 2. 上海核工程研究设计院,上海 200233
- 折叠
摘要
Abstract
Experimental study on the cross-flow-induced vibration of 49 tubes in rotated equilateral triangular array was conducted.The tubes were fixed in both ends and supported by three tube support plates.The behavior and characteristic of the tubes under cross flow from double inlets with opposite direction were obtained,as well as that under cross flow from single inlet.Vibration amplitude,frequency and critical fluid-elastic instability Reynolds number of one of the tubes subjected to different inlet velocities were analyzed.The results show that fluid-elastic instability occurs in a lower Reynolds number under cross flow from two inlets with opposite direction,compared with the tubes under cross flow in single inlet.The main vibration frequency when the fluid-elastic instability happens is about 104 Hz,which is close to the theoretical natural frequency of the single span with two fixed ends model.The results are beneficial for the validation of the numerical simulation model for flow-induced vibration of tube bundles.关键词
支承板/流致振动/流弹失稳/多跨管束Key words
tube support plate/flow-induced vibration/fluid-elastic instability/multi-span tube bundle分类
能源科技引用本文复制引用
方夏鋆,祖洪彪,熊珍琴,张可丰,顾汉洋,谢永诚..支承板支撑多跨管束流致振动试验研究[J].原子能科学技术,2017,51(8):1379-1386,8.
