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International Journal of Naval Architecture and Ocean Engineering
Scopus
ISSN 2092-6782 · Elsevier · 1.081 artikel di indeks
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Artikel Jurnal
Assessing the performance of PANS and RANS for accurate wake flow prediction around the KVLCC2
This study presents a comparative analysis of the partially-averaged Navier-Stokes (PANS) and Reynolds-averaged Navier-Stokes (RANS) models for predicting secondary turbulence flows in the propeller plane of the KRISO Very Large Crude Carrier 2 (KVLCC2). Numerical simulations were performed using…
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Development of a novel model testing methodology for integrated performance evaluation of a wave energy converters of floating type
In this study, a new model-testing methodology, termed the Real-Time Hybrid Model Test, was developed to evaluate the integrated performance of floating-type wave energy converters (FWECs) in a wave basin. The proposed technique incorporates a full-scale hydraulic power take-off (PTO) system…
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A crack localization method for beam-analogy structures based on wavelet transform of mode shape variations
This study proposes a crack localization method for beam-analogy structures with and without inherent structural discontinuities such as girders and bulkheads of ships, bridge piers, and building slabs. The proposed method utilizes the discrete wavelet transform (DWT) of crack-induced mode shape…
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A hybrid SA-based model for integrated routing and 3D stowage of inter-continental RoRo ships with mixed pickup-delivery and stability constraints
Integrated voyage and stowage planning for Roll-on/Roll-off (RoRo) ships involves optimizing port sequences and managing simultaneous loading/unloading operations. While most existing research on RoRo Ship Routing and Stowage Problems (RSRSP) addresses simplified routing scenarios, this study…
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A method for transferring piping designs using past project data in shipbuilding
Ship piping design requires arranging many interconnected pipes within confined spaces while satisfying connectivity and collision constraints. This study proposed a data-driven method for transferring 3D pipe routes from past ship projects to a new target ship via a two-stage workflow…
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A study on aiming control and validation of a reinforcement learning-based fire monitor in maritime environments
With the growing interest in autonomous ships, there has been an increasing demand for intelligent fire suppression systems that can operate reliably even under irregular sea conditions. This study proposes an autonomous aiming control approach for a fire monitor, designed to optimize its targeting…
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Method for damage effectiveness assessment of aircraft carrier deck operating personnel
The aircraft carrier flight deck is a core area for naval aviation operations, where personnel are exposed to multiple threats such as blast waves, fragments, and thermal damage during high-intensity combat. The coupling between personnel survivability and deck-operations efficiency directly…
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Probabilistic prediction of optimal T-joint welding parameters considering data trends and variability using generative adversarial network
This study proposes a method for deriving optimal welding conditions to achieve the target bead geometry in fillet welding. Existing regression-based approaches, fail to sufficiently capture the nonlinearity and variability inherent in the welding process. Moreover, the lack of available raw data…
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Line contact induced bending failures of ice sheets during ship-ice interactions
Recent field observations from the Xuelong icebreaker indicate that line contact induced bending failures of ice sheets are prevalent during consecutive ice breaking processes. However, the corresponding ice force and breaking length have rarely been studied. Against this backdrop, this study…
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Anti-swing overhead crane control algorithm based on multi-body dynamics using reinforcement learning
Excessive cargo sway during crane operations in the current shipbuilding industry is a major problem that causes safety accidents and work delays. Therefore, the development of stable crane control technology is essential. In this study, a crane control algorithm that simultaneously achieves…
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Optimization of cycloidal propeller performance over multiple operating points using a multi-fidelity CFD-Experimental approach
Cycloidal propulsion, also known as the transverse-axis system, holds significant promise for the next generation of ships. Its capability to deliver excellent maneuverability at low speeds, similar to the Voith-Schneider Propeller, and high efficiency at elevated speeds, as seen in systems like…
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Artikel Jurnal
High-frequency stress prediction and safety assessment method for structures under the effect of underwater explosions
Dynamic stress response is an important parameter to describe the degree of impact damage of a structure under underwater explosion and able to act as a significant reference for structural safety assessment. However, the dynamic response of a structure presents a strongly nonlinear process, and…
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Artikel Jurnal
Comparative study on the hydrodynamic flow characteristics around the BB2 submarine using RANS and PANS turbulence models under straight and drift conditions
This study presents a comparative computational analysis of the hydrodynamic flow characteristics around the Joubert BB2 submarine using Reynolds-Averaged Navier–Stokes (RANS) and Partially-Averaged Navier–Stokes (PANS) turbulence models. Simulations were performed under two representative…
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A comprehensive finite element study of cold expanded insert installation for the corrosion repair of 7075-T6 aluminum alloy holes
This study numerically investigates a cold expansion (CE) based insert installation for repairing 7075-T6 aluminum holes. A 3D elasto-plastic finite element model combined with response surface methodology examines three factors: the CE%, insert thickness (IT), and edge margin ratio (EMR), and…
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Artikel Jurnal
CFD-based hydrodynamics modeling of control fins with low aspect ratio for AUVs
Autonomous underwater vehicles (AUVs) are equipped with short span control fins owing to geometric constraints, resulting in difficulties in design and control of AUVs. The present study proposes a generalized approach for hydrodynamics modeling of AUV control fins based on validated computational…
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Artikel Jurnal
Development of a standard series for pump-jet propulsors and data-driven regression for performance prediction
Pump-jet propulsors are widely used in marine applications because of their advantages in propulsive efficiency, cavitation performance, and low noise performance. However, the lack of a standard series database still limits rapid preliminary design and systematic performance comparison of pump-Jet…
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Artikel Jurnal
Optimal operational method for hybrid propulsion ships using operation data
With the recent tightening of greenhouse gas (GHG) reduction targets by the International Maritime Organization (IMO), there is a growing need for data-driven energy management and operation planning for ships. Electric propulsion hybrid ships, in particular, can operate in multiple propulsion…
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Artikel Jurnal
A systematic study on the influence of scale, hull roughness, and draft on form factor estimation
In recent years, considerable attention has been given to the prediction of form factor of ships and the associated scale effects, as the accuracy of such estimations has come under scrutiny. This paper explores the discrepancies between model-scale and full-scale form factor predictions derived…
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Artikel Jurnal
Hull form reconstruction from insufficient data conforming to hydrostatic constraints
Classification societies perform stability analysis based on offsets submitted by shipyards and verify the results. However, in many practical situations, the hull form data required for hydrostatic evaluation is insufficient. This commonly occurs during the stability reassessment of retrofitted or…
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