A numerical simulation method for predicting global and local hydroelastic response of a ship based on CFD and FEA coupling

In this paper, a simulation method for predicting global and local hydroelastic response of a ship which couples CFD and FEA is developed and validated. By comparing the prediction with linear/nonlinear strip method, 3D panel method and towing tank test results under various wave conditions in terms...

Full description

Saved in:
Bibliographic Details
Published in:Marine structures 2018-05, Vol.59, p.368-386
Main Authors: Takami, Tomoki, Matsui, Sadaoki, Oka, Masayoshi, Iijima, Kazuhiro
Format: Article
Language:English
Subjects:
Bending moments
Computational fluid dynamics
Computer simulation
Container ships
Coupling
Deformation
Double bottom structure
Finite element analysis
Finite element method
Hull girder
Hydroelasticity
Impact loads
Load
Mathematical models
Numerical prediction
Panel method (fluid dynamics)
Pressure distribution
Rigid structures
Rigid-body dynamics
Ship accidents & safety
Ships
Simulation
Slamming
Test procedures
Towing
Towing tanks
Whipping
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, a simulation method for predicting global and local hydroelastic response of a ship which couples CFD and FEA is developed and validated. By comparing the prediction with linear/nonlinear strip method, 3D panel method and towing tank test results under various wave conditions in terms of rigid body motions and slamming impact pressure, the effectiveness of the CFD-FEA coupling method is confirmed. The hydroelastic behavior, so-called the whipping moment, evaluated from the CFD-FEA coupling method is further validated by comparing with nonlinear strip method, 3D panel method and tank test results. Finally, the proposed method is applied to a realistic large container ship structure in severe waves. The structural response of the double bottom structure subjected to global and local bending moments is investigated. •Numerical method for predicting global and local hydroelastic response is developed.•Developed method is validated regarding hydrodynamic and hydroelastic responses.•Contribution of local load to double bottom strength is identified clearly.
ISSN:0951-8339
1873-4170
DOI:10.1016/j.marstruc.2018.02.009