多缆地震船拖体的阻力及横向姿态预测
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摘要
目前有关阻力及空间状态的理论计算和模型试验基本上针对单个水下拖体,而对多缆地震船各类拖体的综合受力和姿态则较少受到关注。为方便施工团队在海上快速预测拖体的状态,在国内外学者对水下拖体的流体阻力研究基础上,分析多缆地震船水下拖体的结构和流体阻力特征,提出简化的阻力计算及横向姿态预测方法。文章以常用的多缆地震船拖体配置为例,得到的估算结果与实际的作业状态较为吻合,证实了该方法的有效性。
At present, theoretical calculation and model test about resistance and space state basically focus on a single underwater towed body, while the comprehensive resistance and stance of towed objects of multi-streamer seismic survey vessels are less concerned. For the convenience of the operators to predict the state of towed bodies in the sea quickly, the structure of multi-streamer seismic survey vessels for towed objects and the character of fluid resistance are analyzed on the basis of existing research on the fluid resistance of underwater towed objects. A simplified way to calculate the resistance and to estimate the horizontal stance is presented. This paper takes the configuration of common towed objects as an example, and the difference between estimation result and actual working status is within the permitted scope. The effectiveness of the proposed method is confirmed.
At present, theoretical calculation and model test about resistance and space state basically focus on a single underwater towed body, while the comprehensive resistance and stance of towed objects of multi-streamer seismic survey vessels are less concerned. For the convenience of the operators to predict the state of towed bodies in the sea quickly, the structure of multi-streamer seismic survey vessels for towed objects and the character of fluid resistance are analyzed on the basis of existing research on the fluid resistance of underwater towed objects. A simplified way to calculate the resistance and to estimate the horizontal stance is presented. This paper takes the configuration of common towed objects as an example, and the difference between estimation result and actual working status is within the permitted scope. The effectiveness of the proposed method is confirmed.
引文
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DOWLING A P.1988.The dynamics of towed flexible cylinderspart 1 Neutrally Buoyant Elements[J].Fluid Mech,187:507–532
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HOERNER S F.1965.Fluid-dynamic drag:Practical informationon aerodynamic drag and hydrodynamic resistance[M].BrickTown,New Jersey:Hoerner Fluid Dynamics:118–121.
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冯铁城.1996.浮筒的波浪力计算[J].海洋工程,14(3):36–40.
李光明,杨飞,朱学康.2011.水下拖缆稳态运动特性计算方法及应用分析[J].舰船科学技术,33(8):3–10.
李树成,张昆山,黄祥科.2007.浮筒的海上拖带计算[G]//第四届中国国际救捞论坛论文集.北京:海洋出版社:128–132.
李占.2008.小尺度水平柱体在水波与内波场中的受力模拟[D]天津:天津大学:46.
鲁通.2009.拖轮海上拖带航行拖力分析计算[J].江苏船舶26(5):14–15.
马汝建.1993.波浪阻力线性化的能量法[J].石油大学学报:自然科学版,17(6):63–66.
苗建明.2010.海上地震拖缆自动定深器建模及仿真研究[J].自动化博览,(6):72–74.
孙宝善,王日新,高士奇.2000.物探船拖缆姿态及拉力预报[J]海洋工程,18(3):71–74.
王春杰.2011.横向流作用下海洋地震拖缆姿态控制研究[D]上海:上海交通大学:14–16.
王飞.2007.海洋勘探拖曳系统运动仿真及控制技术研究[D]上海:上海交通大学:109.
王言英.2004.波浪中浮体运动与遭遇荷载计算研究[J].大连理工大学学报,44(3):313–319.
张辉.2009.海洋地震勘探拖曳系统动态运动分析及控制算法优化探讨[J].海洋开发与管理,26(8):110–113.
张亮,张维竞,刘涛.2013.地震拖缆的复模态振动主动控制[J].海洋工程,31(1):49–53.
张维竞,张小卿,陈峻.2009.基于嵌入式水鸟的海洋地震拖缆运动状态仿真研究[J].海洋工程,27(4):81–86.
张小卿.2009.基于嵌入式水鸟的海上地震拖缆运动控制与仿真研究[D].上海:上海交通大学:12–24.
DOWLING A P.1988.The dynamics of towed flexible cylinderspart 1 Neutrally Buoyant Elements[J].Fluid Mech,187:507–532
ERSDAL S.2004.An experimental study of hydrodynamic forceson cylinders and cables in near axial flow[D].Trondheim:Norwegian University of Science and Technology:127–128.
HOERNER S F.1965.Fluid-dynamic drag:Practical informationon aerodynamic drag and hydrodynamic resistance[M].BrickTown,New Jersey:Hoerner Fluid Dynamics:118–121.
ORTLOFF C R,IVES J.1969.On the dynamic motion of a thinflexible cylinder in a viscous stream[J].Fluid Mech,38(4):713–720.
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