International Journal of Naval Architecture and Ocean Engineering

Journal Article

Burst strength behaviour of an aging subsea gas pipeline elbow in different external and internal corrosion-damaged positions

Lee, Geon Ho; Pouraria, Hassan; Seo, Jung Kwan; Paik, Jeom Kee

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0031

Abstract Evaluation of the performance of aging structures is essential in the oil and gas industry, where the inaccurate prediction of structural performance can have significantly hazardous consequences. The effects of structure failure due to the significant reduction in wall thickness, which...

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Journal Article

Simplified welding distortion analysis for fillet welding using composite shell elements

Kim, Mingyu; Kang, Minseok; Chung, Hyun

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0032

Abstract This paper presents the simplified welding distortion analysis method to predict the welding deformation of both plate and stiffener in fillet welds. Currently, the methods based on equivalent thermal strain like Strain as Direct Boundary (SDB) has been widely used due to effective...

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Journal Article

A numerical study on manoeuvrability of wind turbine installation vessel using OpenFOAM

Lee, Sungwook; Kim, Booki

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0033

Abstract In this study, a numerical prediction method on manoeuvrability of Wind Turbine Installation Vessel (WTIV) is presented. Planar Motion Mechanism (PMM) captive test for the bare hull of WTIV is carried out in the model basin and compared with the numerical results using RANS simulation...

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Journal Article

Hull-form optimization of a container ship based on bell-shaped modification function

Choi, Hee Jong

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0034

Abstract In the present study, a hydrodynamic hull-form optimization algorithm for a container ship was presented in terms of the minimum wave-making resistance. Bell-shaped modification functions were developed to modify the original hull-form and a sequential quadratic programming algorithm was...

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Journal Article

A study on measurements of local ice pressure for ice breaking research vessel “ARAON” at the Amundsen Sea

Kwon, Yong-Hyeon; Lee, Tak-Kee; Choi, Kyungsik

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0035

Abstract In this study, a local ice pressure prediction has been conducted by using measured data from two ice breaking tests that was conducted for a relatively big ice floe at Amundsen Sea in the Antarctica from January 31 to March 30 2012. The symmetry of load was considered by attaching...

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Journal Article

Hydrodynamic modeling of semi-planing hulls with air cavities

Matveev, Konstantin I.

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0036

Abstract High-speed heavy loaded monohull ships can benefit from application of drag-reducing air cavities under stepped hull bottoms. The subject of this paper is the steady hydrodynamic modeling of semi-planing air-cavity hulls. The current method is based on a linearized potential-flow theory...

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Journal Article

Ultimate strength of stiffened plates with pitting corrosion

Rahbar-Ranji, Ahmad; Niamir, Nabi; Zarookian, Arvin

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0037

Abstract Predicting residual strength of corroded plates is of crucial importance for service life estimation of aged structures. A series of nonlinear finite element method is employed for ultimate strength analysis of stiffened plates with pitting corrosion. Influential parameters, including...

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Journal Article

Underwater striling engine design with modified one-dimensional model

Li, Daijin; Qin, Kan; Luo, Kai

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0038

Abstract Stirling engines are regarded as an efficient and promising power system for underwater devices. Currently, many researches on one-dimensional model is used to evaluate thermodynamic performance of Stirling engine, but in which there are still some aspects which cannot be modeled with...

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Journal Article

Virtual maneuvering test in CFD media in presence of free surface

Hajivand, Ahmad; Mousavizadegan, S. Hossein

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0039

Abstract Maneuvering oblique towing test is simulated in a Computational Fluid Dynamic (CFD) environment to obtain the linear and nonlinear velocity dependent damping coefficients for a DTMB 5512 model ship. The simulations are carried out in freely accessible OpenFOAM library with three...

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Journal Article

An experimental study of the effect of mooring systems on the dynamics of a SPAR buoy-type floating offshore wind turbine

Hong, Sinpyo; Lee, Inwon; Park, Seong Hyeon; Lee, Cheolmin; Chun, Ho-Hwan;

2015 International Journal of Naval Architecture and Ocean Engineering

doi:10.1515/ijnaoe-2015-0040

Abstract An experimental study of the effect of mooring systems on the dynamics of a SPAR buoy-type floating offshore wind turbine is presented. The effects of the Center of Gravity (COG), mooring line spring constant, and fair-lead location on the turbine’s motion in response to regular waves...

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International Journal of Naval Architecture and Ocean Engineering

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