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通过大长细比海洋立管物理模型试验,研究内流对其顶张力的影响。在不同的外流流速下用电子流量计读出内流流速,用动态电阻应变片测试得到顶端张力;然后直接分析内流对顶张力的影响规律。试验研究表明:内流的增加会使顶张力减小;施加的初始顶张力较大时,内流的影响较小;施加的外流较小时,内流对顶张力的影响较大。
Abstract：The effect of internal flow on top tension of the riser with large slenderness ratio is researched by physical model test.The internal flow velocity is readout by the electronic flowmeter and top tension is tested by the dynamic resistance strain gauge in different outflow rate.Then the effect regularity of internal flow on top tension of the riser is analyzed directly.The experimental study shows that the top tension declines with the increase of internal flow and the effect of internal flow is relatively small when the applied top tension is large.When the applied external flow velocity is low,the effect of internal flow on top tension of the riser is more obviously.
[1]Feododsev V P.Vibrations and stablity of a pipe when liquid flows through it[J].Inzhenernyi Sbornik,1956,15:169-170.
[2]Housner G W.Bending vibration of pipeline containing flowing fluid[J].Journal of Applied Mechanics,1952,19:267-294.
[3]Paidoussis M P,Issid N T.Dynamic stablity of pipes conveying fliud[J].Journal of Sound and Vibration,1974,33(3):267-294.
[4]Wu M C,Lou J K.Effect of rigidity and internal flow on marine riser dynamics[J].Applied Ocean Research,1991,13(5):235-244.
[5]Chen S S.Dynamics stability of tube conveying fluid[J].Journal of the Engineering Mechanics Division,Proceedings of the American Society of Civil Engineers,1971(S):1469-1485.
[6]Kaewunruen,Chiravatchradej,Chucheepsakul.Nonlinear free vibration of marine risers/pipes Transporing fluid[J].Ocean Engineering,2005,32:417-440.
[7]郭海燕,王树青,刘德辅.海洋环境荷载下输液立管的静、动力特性研究[J].青岛海洋大学学报,2001,31(4):605-611.
[8]郭海燕,齐晓亮,娄敏.海洋立复模态动力特性分析[J].中国海洋大学学报:自然科学版,2006,36(6):991-994.
[9]Li Xiaomin,GUO Haiyan,MENG Fanshun.Effect of internal flowing fluid on the dynamic behavior of top tensioned riser[J].Journal of Ship Mechanics,2010,14(9):1021-1030.
基本信息:
DOI：10.16441/j.cnki.hdxb.2015.01.016
中图分类号:P751;P756.2
引用信息:
[1]郭海燕,赵伟,王飞.内流对立管顶张力影响规律的试验研究[J],2015,45(01):102-109.DOI:10.16441/j.cnki.hdxb.2015.01.016.
基金信息:
国家高技术研究发展计划项目(2010AA09Z303);; 国家自然科学基金项目(51279187;41174157)资助