期刊文献+

波流作用下网格锚泊的单个重力式网箱缆绳张力 被引量:11

Tension of anchor lines of single gravity grid mooring cage under combining effects of wave and current
下载PDF
导出
摘要 以中国沿海常用的周长40mxl0m的HDPE重力式网箱作为研究对象,采用渔具模型试验狄克生准则,选用大比例尺(A=1/10)和小比例尺(Ar-1/2)设计制作模型网箱。网箱锚泊系统采用的网格形式与实际使用的一致。模型试验于日本东京大学生产技术研究所海洋环境工程实验室风浪流水槽[50m(L)×10m(W)x5m(D)1进行。实验时前端缆绳水平方向与波流夹角为0。,波浪周期1~2.2S,波高10~30cm,对流速0cm、10cm和15cm作用下主缆绳、系框绳以及浮框绳的张力特性进行了研究。结果表明:(1)在纯流作用下,前端缆绳张力最大;(2)在纯波作用下,后侧缆绳张力最大,最大张力(Tmax)与波高(H)的关系为:Tmax=C1+C2(Cl、C2为常数);(3)在波流联合作用下,前端缆绳张力最大,缆绳最大张力(Tmax)与波高(H)的关系为:Tmax=C3eC4H(C3、C4为常数);(4)在波流作用时,左右前端缆绳一般会产生差异,最大差值约30%。 The characters of tension in the mooring lines of a single HDPE gravity cylindrical cage were studied by experimental tests. The proto type of cage had a perimeter of 40 m and a height of l0 m. Based on the Dixon rule of gear tests, two scales were chosen for the experimental model, i.e. 入= 1/10 and 入'= 1/2. The experiments were carried out in Ocean Engineering Basin of Institute of Industrial Science of the University of Tokyo. The grid mooring system used in the experiments was geometrically similar to the proto type. The horizontal projections of the front mooring lines were in the same direction of current or incident waves. Uniform current was produced in the whole basin at a velocity of 0 cm/s, 10 cm/s and 15 cm/s. Regular waves with a period of the range from 1 s to 2.2 s and a height varying from 10 cm to 30 cm were generated. Tension in the mooring lines wwa measured. The following conclusions were made from the analysis of measured data: (1) Under the actions of current only, the tension in the front mooring lines was greater than that in rear mooring lines. (2) Under the actions of waves only, the tension in the rear mooring lines was greater than that in the front mooring lines. An empirical formula for the maximum tension (Tmax) in the rear mooring lines was deduced. It turned out that the maximum tension was linearly related to the wave height (H), i.e. Tmax=CIH+C2 (C1 and C2 are constants). (3) Under the combining effects of waves and current, the tension of the front anchor line was again greater than that in the rear one. Another empirical formula was deduced. It showed that the maximum tension in the front mooring lines was exponentially increased with the wave height, i.e. Tmax = C3eC4HI(C3 and C4 are constants).
出处 《中国水产科学》 CAS CSCD 北大核心 2011年第3期636-645,共10页 Journal of Fishery Sciences of China
基金 国家自然科学基金项目(40776052) 国家高新技术研究发展计划项目(2006AA623030) 铜网箱海水养殖项目(TEK1060090626)
关键词 重力式圆形网箱 最大缆绳张力 波浪 水流 gravity cylindrical cages the maximal tension of anchor line wave current
  • 相关文献

参考文献9

  • 1林德芳,关长涛,黄文强.海水网箱养殖工程技术发展现状与展望[J].渔业现代化,2002,29(4):6-9. 被引量:29
  • 2Chen J, Guang C, Xu H, et al. Marine fish cage culture in China. The future of mariculture: a regional approach for re- sponsible development in the Asia-Pacific region [M], FAO/NACA Regional Workshop, 2006:285-293.
  • 3Loverich G F, Gace L. The affect of currents and waves on several classes of offshore cages [J]. Open Ocean Aquac, 1997, 4: 61-73.
  • 4Fredriksson D W, Swift M R, Irish M R, et al. Sea cage and mooring system dynamics using physical and numerical models with field measurements[J]. Aquac Eng, 2003, 27: 117-146.
  • 5宋伟华,梁振林,关长涛,赵芬芳,黄六一,朱立新.应用两种不同的波浪理论计算方形网箱水平波浪力[J].中国水产科学,2005,12(1):91-98. 被引量:4
  • 6李玉成,桂福坤,宋芳等.漂浮状态下重力式及碟形网箱运动及锚绳受力特性的比较[C].深水抗风浪网箱技术研究.北京:海洋出版社,2005:129-136.
  • 7Fredriksson D W, DeCewa J, Swift M R, et al. The design and analysis of a four-cage grid mooringfor open ocean aquaculture [J]. Aquac Eng, 2004, 32:77-94.
  • 8Huang C C, Tang H J, Liu J Y. Effects of waves and currents on gravity-type cages in the open sea [J]. Aquac Eng, 2008, 38:105-116.
  • 9郑国富,黄桂芳,魏观渊,丁兰,朱健康.波流作用下圆柱形近海抗风浪网箱缆绳的张力特性[J].水产学报,2007,31(1):84-89. 被引量:15

二级参考文献26

  • 1王鲁民,黄洪亮,王明彦.圆形重力式网箱阻力性能研究[J].中国海洋大学学报(自然科学版),2004,34(4):555-559. 被引量:16
  • 2弗里德曼AЛ 侯恩淮 高清廉译.渔具理论与设计[M].北京:海洋出版社,1988.36-47,57-63.
  • 3谢荣华.[D].台北:中山大学,2001:12—21.
  • 4Morison J R. The Force Exerted by Surface Wave on Piles[M].AIME: Petrol Trans, 1950. 189- 199.
  • 5Matsuda K. Fishing Gear Physics[ M]. Tokyo: Seizando Press,2001.29 - 49.
  • 6Fujita S, Fukahori K, Nishinokubi H. Tension of the mooring ropes on the net cage model of raft type in regular waves [ J ].Nippon Suisan Gakkaishi, 1991,57(12) :2 229- 2 235.
  • 7Colboume D B, Allen J H. Observation on motions and loads in aquaculture cages from full scale and model scale measurements[J ]. Aquacultural Engineering, 2001,24 : 129 - 148.
  • 8Jothi Shankar N, Hin-Fatt Cheong, Subbian. Root mean square force coefficients for submarine pipelines[J ]. Ocean Engineering,1988,15(1 ) : 55 - 69.
  • 9Kimura H. Numerical calculation of horizontally fully immersed and two points moored cylindrical buoy in wave [ J ]. Fisheries Engineering, 1998,35(2) : 167 - 176.
  • 10Hsien Hua Lee,Wang Pei-Wen. Dynamic behavior of tension-leg platform with net-cage system subjected to wave force[J ]. Ocean Engineering, 2000,28 (2) : 179 - 200.

共引文献46

同被引文献96

引证文献11

二级引证文献45

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部