压力容器2016，Vol.33Issue(3)：1-8,8.DOI:10.3969/j.issn.1001-4837.2016.03.001
刚性管对正方形排布管束流体弹性不稳定性的影响研究
Study on the Influence of Rigid Tubes on Fluid-elastic Instability of a Normal Square Tube Array
摘要
Abstract
The influence of rigid tubes on fluid-elastic instability of a normal square tube array is studied by changing upstream or downstream tubes of the central tube to rigid tubes and measuring the vibration response of the central tube under different flow velocity in water tunnel.The results show that upstream rigid tubes have larger restraint effect on the vibration of the central tube than downstream rigid tubes.The quantity difference of upstream rigid tubes has small effect on the amplitude of the central tube but has large effect on the critical velocity.The spacing difference of upstream rigid tubes has large effect on the amplitude and the critical velocity of the central tube.The experimental results provide a reference for engineering practice.关键词
流体弹性不稳定性/刚度/流体诱导振动/正方形排布/管束Key words
fluid-elastic instability/stiffness/flow induced vibration/square array/tube bundle分类
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谭蔚,晋文娟,吴皓,杨志海..刚性管对正方形排布管束流体弹性不稳定性的影响研究[J].压力容器,2016,33(3):1-8,8.
