Extreme waves have caused a lot of ship accidents and casualties. In this paper, a two-dimensional (2D) hydroelastoplasticity method is proposed to study the nonlinear dynamic responses of a container ship in extreme waves. On the one hand, the traditional ultimate strength evaluation is mainly performed using a quasi-static assumption without considering the dynamic wave effect. On the other hand, the dynamic response of a ship induced by a wave is studied based on hydroelasticity theory, which means the ship structural response to large waves is linear. Therefore, a 2D hydroelastoplasticity method that accounts for the coupling between the time-domain wave and ship beam for nonlinear vertical bending moment (VBM) is proposed. In addition, a nonlinear dynamic finite element method (FEM) is also applied for the nonlinear VBM of ship beam. The computational results of the FEM, including the nonlinear VBM and deformational angle, are compared with the results of the 2D hydroelastoplasticity and hydroelasticity. A number of numerical extreme wave models are selected for computations of hydroelasticity-plasticity, hydroelasticity, and FEM. A difference is observed between the nonlinear VBM calculated by FEM and linear VBM calculated by hydroelasticity, and conclusions are drawn.

References

References
1.
Kharif
,
C.
, and
Peliniovsky
,
E.
,
2003
, “
Physical Mechanisms of the Rogue Wave Phenomenon
,”
Eur. J. Mech., B: Fluids
,
22
(
6
), pp.
603
634
.
2.
Muller
,
P.
,
Garrett
,
C.
, and
Osborne
,
E.
,
2005
, “
Rogue Wave
,”
Oceanogr. Soc.
,
18
(
3
), pp.
66
75
.
3.
Yang
,
G.
,
Dong
,
Y.
, and
Chen
,
X.
,
2002
, “
Freak Wave
,”
Ocean Eng.
,
4
, pp.
105
108
.
4.
Yamamoto
,
Y.
,
Fujino
,
M.
, and
Fukasawa
,
T.
,
1977
, “
Motion and Longitudinal Strength of a Ship in Head Sea and the Effects of Non-Linearity
,”
Conference of the Society of Naval Architects of Japan in Spring
, Vol.
3
, pp.
214
218
.
5.
Senjanović
,
I.
,
Tomašević
,
S.
, and
Vladimir
,
N.
,
2009
, “
An Advanced Theory of Thin-Walled Girders With Application to Ship Vibrations
,”
Mar. Struct.
,
22
(
3
), pp.
387
437
.
6.
Huang
,
L.
, and
Riggs
,
H.
,
2000
, “
The Hydrostatic Stiffness of Flexible Floating Structures for Linear Hydroelasticity
,”
Mar. Struct.
,
13
(
2
), pp.
91
106
.
7.
Malenica
,
Š.
,
Senjanović
,
I.
, and
Vladimir
,
N.
,
2013
, “
Hydro Structural Issues in the Design of Ultra Large Container Ships
,”
Int. J. Nav. Archit. Ocean Eng.
,
64
, pp.
323
347
.
8.
Iijima
,
K.
,
Kimura
,
K.
,
Xu
,
W.
, and
Fujikubo
,
M.
,
2011
, “
Hydroelasto-Plasticity Approach to Predicting the Post-Ultimate Strength Behavior of Ship's Hull Girder in Waves
,”
J. Mar. Sci. Technol.
,
16
(
4
), pp.
379
389
.
9.
Liu
,
W.
,
Suzuki
,
K.
, and
Shibanuma
,
K.
,
2014
, “
Nonlinear Dynamic Response and Structural Evaluation of Container Ship in Large Freak Waves
,”
ASME J. Offshore Mech. Arct. Eng.
,
137
(
1
), p.
011601
.
10.
Liu
,
W.
,
Suzuki
,
K.
, and
Shibanuma
,
K.
,
2014
, “
Nonlinear Dynamic Response and Strength Evaluation of a Containership Beam in Extreme Waves Based on Hydroelasticity-Plasticity Method
,”
Conference International Society of Offshore and Polar Engineers
, Busan, Korea, Vol.
4
, pp.
652
657
.
11.
Liu
,
W.
,
Suzuki
,
K.
, and
Shibanuma
,
K.
,
2015
, “
A Two-Dimensional (2D) Hydroelasto-Plasticity Method of a Containership in Extreme Waves
,”
ASME J. Offshore Mech. Arct. Eng.
,
137
(
2
), p.
021101
.
12.
Waseda
,
T.
,
Rheem
,
C. K.
,
Sawamura
,
J.
,
Yuhara
,
T.
,
Kinoshita
,
T.
,
Tanizawa
,
K.
, and
Tomita
,
H.
,
2005
, “
Extreme Wave Generation in Laboratory Wave Tank
,”
15th ISOPE
, Vol.
2
, pp.
1
9
.
13.
Minami
,
M.
,
Sawada
,
H.
, and
Tanizawa
,
K.
,
2006
, “
Study of Ship Responses and Wave Loads in Freak Wave
,”
J. Jpn. Soc. Nav. Archit. Ocean Eng.
,
4
, pp.
107
115
.
14.
Shi
,
J.
,
Waseda
,
T.
,
Kinoshita
,
T.
, and
Suzuki
,
K.
,
2007
, “
Structural and Motion Responses on Large Container Ships in Freak Waves
,”
Symposium Held at Research Institute for Applied Mechanics
, Vol.
2
, pp.
11
15
.
You do not currently have access to this content.