NUMERICAL STUDY OF LARGE AMPLITUDE SHIP MOTION WITH FORWARD SPEED IN SEVERE SEAS

被引:0
作者
Hong, D. C. [1 ]
Sung, H. G. [1 ]
Hong, S. Y. [1 ]
机构
[1] Chungnam Natl Univ, Ctr Adv Transportat Vehicles, Yuseong 305764, Daejon, South Korea
来源
OMAE 2009, VOL 4, PTS A AND B | 2009年
关键词
D O I
暂无
中图分类号
P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
A three-dimensional time-domain calculation method is of crucial importance in prediction of ship motion with forward speed in a severe irregular sea. The exact solution of the free surface wave ship interaction problem is very complicated because of the extremely nonlinear boundary conditions. In this paper, an approximate body nonlinear approach based on the three-dimensional time-domain forward-speed free-surface Green function has been presented. It is a simplified version of the method known as LAMP (Lin and Yue 1990) where the exact body boundary condition is applied on the instantaneous wetted surface of the ship while free-surface condition is linearized. In the present study, the Froude-Krylov force and the hydrostatic restoring force are calculated on the instantaneous wetted surface of the ship while the forces due to the radiation and scattering potentials on the mean wetted surface. The time-domain radiation and scattering potentials have been obtained from a time invariant kernel of integral equations for the potentials. The integral equation for the radiation potential is discretized according to the second-order boundary element method (Hong and Hong. 2008). The diffraction impulse response functions of the Wigley seakeeping model are presented for various Froude numbers. A simulation of coupled heave-pitch motion of the Wigley model advancing in regular head waves of large amplitude has been carried out. Comparisons between the fully linear and the present approximate body nonlinear computations have been made at various Froude numbers.
引用
收藏
页码:171 / 175
页数:5
相关论文
共 50 条
[41]   A Numerical Study of Hydrodynamic Interactions between a Large Cruise Ship and a Container Ship [J].
Song S. ;
Xia L. ;
Zou Z. ;
Zou L. .
Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University, 2022, 56 (07) :919-928
[42]   STUDY ON WAVE LOADS ACTING ON A SHIP IN LARGE AMPLITUDE WAVES. [J].
Fujino, Masataka ;
Yoon, Bum Sang .
Naval architecture and ocean engineering, 1986, 24 :39-57
[43]   An improved numerical model for the study of controlled ship motions in extreme following and quartering seas [J].
Ayaz, Z ;
Spyrou, KJ ;
Vassalos, D .
CONTROL APPLICATIONS IN MARINE SYSTEMS 2001 (CAMS 2001), 2002, :27-37
[44]   A numerical study of large amplitude baroclinic instabilities of flames [J].
Chomiak, J ;
Zhou, G .
TWENTY-SIXTH SYMPOSIUM (INTERNATIONAL) ON COMBUSTION, VOLS 1 AND 2, 1996, :883-889
[45]   A numerical study of the influence of launch parameters on lifeboat deployment from a ship in beam seas [J].
Ekman, P .
MARINE TECHNOLOGY AND SNAME NEWS, 2006, 43 (02) :91-99
[46]   Benchmark study of global linear wave loads on a container ship with forward speed [J].
Parunov, Josko ;
Guedes Soares, C. ;
Hirdaris, Spyros ;
Iijima, Kazuhiro ;
Wang, Xueliang ;
Brizzolara, Stefano ;
Qiu, Wei ;
Mikulic, Antonio ;
Wang, Shan ;
Abdelwahab, H. S. .
MARINE STRUCTURES, 2022, 84
[47]   Note on sway, roll and yaw motions of a ship with forward speed: analytical study [J].
S. K. Das ;
S. N. Das .
Acta Mechanica, 2006, 186 :221-227
[48]   Note on sway, roll and yaw motions of a ship with forward speed: analytical study [J].
Das, S. K. ;
Das, S. N. .
ACTA MECHANICA, 2006, 186 (1-4) :221-227
[49]   Large-amplitude time-domain simulation tool for marine and offshore motion prediction: Ergodicity study of coupled parametric roll motion in irregular seas [J].
Somayajula A. ;
Falzarano J. .
Marine Systems and Ocean Technology, 2015, 10 (01) :1-17
[50]   A NUMERICAL APPROACH TO THE INTERNAL LARGE-AMPLITUDE MOTION HAMILTONIAN OF A POLYATOMIC MOLECULE [J].
PYKA, J ;
FOLTYNOWICZ, I ;
MAKAREWICZ, J .
JOURNAL OF MOLECULAR SPECTROSCOPY, 1990, 143 (01) :137-159