Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Time-domain computations of ship motion with forward speed using finite element method

Authors
Nam, B.-W.Sung, H.-G.Hong, S.
Issue Date
2009
Keywords
FEM; Forward speed; Nonlinear Froude-Krylov; Nonlinear restoring; Ship motion; Time-domain
Citation
Proceedings of the International Offshore and Polar Engineering Conference, pp 576 - 582
Pages
7
Journal Title
Proceedings of the International Offshore and Polar Engineering Conference
Start Page
576
End Page
582
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/8937
ISSN
1098-6189
Abstract
The motion of ocean-going ship with constant forward speed is considered in time domain. The double-body linearization is adopted for ship motion calculations. The finite element method (FEM) based on variational principle is applied to solve the linearized boundary value problem. Time integration of free-surface boundary condition is carried out by 4th order Adams-Bashforth-Moultn method. In order to remove reflected waves at the truncated boundary, numerical damping zone is utilized. At every few steps, five-point Chebyshev filtering scheme is applied to smooth out unwanted saw-tooth waves. To include body nonlinear effect, nonlinear restoring and Froude-Kylov forces are additionaly calculated by considering incident wave elevation and relative ship position. For the validation of developed code, responses of three different ship models, wigley III, series60 and s175 container, are compared with existing experimental results or other computations. Nonlinear effects on motion RAO and structural load are also observed in detail. Copyright ? 2009 by The International Society of Offshore and Polar Engineers (ISOPE).
Files in This Item
There are no files associated with this item.
Appears in
Collections
친환경해양개발연구본부 > 심해공학연구센터 > Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Hong, Sa Young photo

Hong, Sa Young
친환경해양개발연구본부
Read more

Altmetrics

Total Views & Downloads

BROWSE