On Coupling Effect of Ship? Transverse / Longitudinal Motions Based on CFD

DOI

10.2991/mme-16.2017.136How to use a DOI?

Keywords

CFD, Ship, Sea-keeping, Coupling effect.

Abstract

Aiming to break through the assumption that ship's transverse (mainly roll) and longitudinal (mainly pitch and heave) motion are not coupled in traditional sea-keeping study, the mathematical model to study coupling coefficients of transverse / longitudinal motion was proposed, and ship's roll, pitch / heave and roll / pitch / heave coupling motions in oblique regular wave were numerical simulated by CFD method. Based on the simulation results, the coupling effect of transverse and longitudinal motions was analyzed. The results show that: the coupling effect exists between ship's transverse and longitudinal motions, which varies with the ratio of wave length and ship length, and compared to uncoupling data, the change of ship's hydrodynamics, amplitudes of motion and Respond Amplitude Operators (RAO) is up to 10% at maximum.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jian-Jun Hou
AU  - Bo Yang
PY  - 2016/12
DA  - 2016/12
TI  - On Coupling Effect of Ship? Transverse / Longitudinal Motions Based on CFD
BT  - Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)
PB  - Atlantis Press
SP  - 968
EP  - 974
SN  - 2352-5401
UR  - https://doi.org/10.2991/mme-16.2017.136
DO  - 10.2991/mme-16.2017.136
ID  - Hou2016/12
ER  -