中国舰船研究2018，Vol.13Issue(2)：70-75,6.DOI:10.3969/j.issn.1673-3185.2018.02.009
管路弯头流致振动的影响因素分析
Influence factors analysis of flow-induced vibration of elbow in piping system
柯兵1
作者信息
- 1. 中国舰船研究设计中心,湖北武汉430064;船舶振动噪声重点实验室,湖北武汉430064
- 折叠
摘要
Abstract
[Objectives]As important parts of any piping system,the elbows are one of the main factors causing vibration. To have a better understanding of Flow-Induced Vibration(FIV)of elbows in piping system.[Methods]In this paper,the diameter,curvature radius,bending angle are chosen as variables, and a study of turbulence flow-induced vibration of elbow by a combined method of finite element numerical calculation and experiment is carried out,so as to obtain the effect of different curvature radius, bending angle on the fluctuating pressure and the structural vibration response of pipeline elbow under variable flow velocity.[Results]The numerical and experimental results show that the effect of the curvature radius and flow velocity on the FIV of an elbow is significant;with the increase of the curvature radius and decrease of flow velocity,the FIV decreases.[Conclusions]The research results of this paper can provide useful references for the acoustic design of piping systems.关键词
管路弯头/流致振动/曲率半径/湍流Key words
pipeline elbow/flow-induced vibration/curvature radius/turbulence分类
交通工程引用本文复制引用
柯兵..管路弯头流致振动的影响因素分析[J].中国舰船研究,2018,13(2):70-75,6.
