Load mapping for seamless interface between hydrodynamics and structural analyses

•A seamless interface between the hydro and structural analyses is addressed.•We propose a method of transferring pressure to a structural model.•We propose a method of transferring viscous forces to a structural model.•We propose a method of removing force and moment imbalances. This paper addresse...

Full description

Saved in:
Bibliographic Details
Published in:Advances in engineering software (1992) 2014-05, Vol.71, p.9-18
Main Authors: Ji, Joonghyun, Kim, Kangwook, Seo, Minkook, Kim, Taeyoung, Park, Dongmin, Kim, Yonghwan, Ko, Kwang Hee
Format: Article
Language:English
Subjects:
Computation
Computational fluid dynamics
Computer programs
Fluid flow
Hydrodynamic analysis
Hydrodynamics
Mapping
Panel
Pressure
Pressure distribution
Seakeeping
Software engineering
Structural analysis
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:•A seamless interface between the hydro and structural analyses is addressed.•We propose a method of transferring pressure to a structural model.•We propose a method of transferring viscous forces to a structural model.•We propose a method of removing force and moment imbalances. This paper addresses the problem of a seamless interface between hydrodynamics and structural analyses. A pressure distribution on a hydro model computed from seakeeping analysis needs to be transferred to a structural model for evaluating structural strength and its integrity. However, due to the differences in the computation and representation methods for both analyses, the load on the hydro model may not be correctly transferred to the structural model, leading to a different load distribution on the structural model and resulting in some unbalanced force and moment components. In this paper, a method is proposed to solve this problem. A pressure distribution on the hydro model is mapped on the structural model through projection, and force and moment imbalances on the structural model are eliminated through optimization of the nodal forces on the structural model. Moreover, a viscous force distribution along the center of each member of the hydro model is transferred to the nodal forces on the structural model based on the minimum distance measure with resolving any force and moment imbalance. Examples are presented to demonstrate the validity of the proposed method.
ISSN:0965-9978
DOI:10.1016/j.advengsoft.2014.01.015