| 河流穿越管道冲管段涡激振动研究 |
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| 引用本文： | 常向东,朱晨辉.河流穿越管道冲管段涡激振动研究[J].管道技术与设备,2008(2):11-13. |
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| 作者姓名： | 常向东 朱晨辉 |
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| 作者单位： | 后勤工程学院供油系油料储运教研室,重庆,400016;中国人民解放军73821部队,江苏淮安,223001 |
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| 摘 要： | 河流穿越管道冲管段主要是在管道露出河床的基础上，由于冲刷现象使管底“淘空”而形成。在分析冲管段河流中的涡旋发放现象和频率锁定现象的基础上，描述了涡旋发放规律的涡旋发放频率、约化速度等基本参数，及诱发涡旋发放的举升力、拖曳力、惯性力及来流速度等激振力。由如要避免类似共振现象，就要加大管子固有频率和涡旋发放频率的数量级的差距，得出必须及时抢修冲管段的最大长度的计算公式。
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| 关 键 词： | 输油管线 管道抢修 冲管 涡激振动 |
| 文章编号： | 1004-9614(2008)02-0011-02 |
| 修稿时间： | 2007年8月19日 |
Study of the Scoured Pipeline Vibration Activized by Whirlpool |
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| CHANG Xiang-dong,ZHU Chen-hui.Study of the Scoured Pipeline Vibration Activized by Whirlpool[J].Pipeline Technique and Equipment,2008(2):11-13. |
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| Authors: | CHANG Xiang-dong ZHU Chen-hui |
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| Institution: | CHANG Xiang-dong,ZHU Chen-hui ( 1. Logistics Engineering University, Chongqing 400016, China ;2. Unit 73821 of PLA, Huaian 223001, China) |
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| Abstract: | Because the pipeline fundus is"hollowed out"by the scouring phenomena,the scoured pipeline is formed.Base on the analysis of the whirlpool extend phenomena and frequency locked phenomena of the scoured pipeline,the basic parameters,such as frequency of the whirlpool extension and velocity were described.And the force that can arouse whirlpool extension phenomena,such as lift power,daggle power,inertia power and velocity of follow is discussed.Based on the conclusion,if the frequency of the pipeline is 10 times higher than the whirlpool extenson discrepancy the resonance does not occur,so the formula of the biggest length of the scoured pipeline is educed. |
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| Keywords: | petroleum pipeline pipeline recovery scoured pipeline vibration |
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