Numerical and experimental investigation on roll damping of small waterplane area twin hull

被引：0
作者：
Sun X. [1 ]
Yao C. [1 ]
Ye Q. [1 ]
机构：
[1] Department of Naval Architecture Engineering, Naval University of Engineering, Wuhan
来源：
Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology | 2017年 / 39卷 / 06期
关键词：
Free roll decay; Roll damping; Small waterplane area twin hull;
D O I：
10.11887/j.cn.201706012
中图分类号：
学科分类号：
摘要：
A SWATH (small waterplane area twin hull) installed with stabilizing fins rolling freely in calm water was investigated by both numerical approach and experimental method. Uncertainty analysis was made to verify and validate the numerical method. Both linear roll damping and nonlinear roll damping were obtained and the contributions of the frictional damping and the stabilizing fins to the roll restoring moment were analyzed. The results illustrate that: the numerical free roll decay curve agrees well with the experiment; under the assumption of linear roll mode, the linear roll damping coefficient sees an upward trend with the increase of initial heel angle; the computed free roll decay curves using nonlinear damping coefficients agree well with the experimental results; the frictional damping and the stabilizing fins make minimal contributions to the roll restoring moment for the free roll decay motion in still water. © 2017, NUDT Press. All right reserved.
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页码：71 / 78and142
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共 23 条
  • [1] Irkal M.A.R., Nallayarasu S., Bhattacharyya S.K., CFD approach to roll damping of ship with bilge keel with experimental validation, Applied Ocean Research, 55, pp. 1-17, (2016)
  • [2] Ikeda Y., Komatsu K., Himeno Y., Et al., On roll damping force of ship:effect of hull surface pressure created by bilge keels, Journal of Kansai Society of Naval Architects, 165, pp. 31-40, (1977)
  • [3] Himeno Y., Prediction of Ship Roll Damping-state of Art, (1981)
  • [4] Chakrabarti S., Empirical calculation of roll damping for ships and barges, Ocean Engineering, 28, 7, pp. 915-932, (2001)
  • [5] de Oliveira A.C., Fernandes A.C., The nonlinear roll damping of a FPSO hull, Journal of Offshore Mechanics and Arctic Engineering, 136, 1, (2014)
  • [6] Dong W., Huang X., Liu Z., Experimental determination of roll damping of deep-Vee planning craft, Journal of Naval University of Engineering, 16, 4, pp. 26-29, (2004)
  • [7] Li P., Feng T., Qiu Y., Investigation of trimaran roll motion characteristic, Shipbuilding of China, 44, 1, pp. 24-30, (2003)
  • [8] Huang H., Guo H., Zhu R., Et al., Computations of ship roll damping in viscous flow, Journal of Ship Mechanics, 12, 4, pp. 568-573, (2008)
  • [9] Yang C., Zhu R., Miao G., Et al., A roll damping prediction method of three-dimensional ships based on CFD computation, Journal of Shanghai Jiaotong University, 46, 8, pp. 1190-1195, (2012)
  • [10] Avalos G.O.G., Wanderley J.B.V., Fernandes A.C., Et al., Roll damping decay of a FPSO with bilge keel, Ocean Engineering, 87, pp. 111-120, (2014)
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