A Study on Relative Position Estimation Using a Camera-based Localization Method for Autonomous Berthing of Unmanned Surface Vehicles

YeEun Lim, Chunseon Pyo, Kihun Kim, Hansol Park

This study proposes a camera-based relative position estimation technique for autonomous berthing of unmanned surface vehicles (USVs). The system estimates the ...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2026.63.3.130

Study on the Prediction of Maneuverability of KLNG2 with the Variation of Propulsion Loading

Yeongyu Kim, Dongjin Kim, Seunghyun Hwang, Kunhang Yun

Recently the interest on wind assisted propulsion ships is increasing as the interest on eco-friendly ship for carbon neutrality is increasing. Rotor sail, wing...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2026.63.3.141

Preliminary Development on Framework to Execute Formation Transformation for Manned-unmanned Teaming Underwater Vehicles by Implementing Multi-agent Reinforcement Learning

Seungtae Kim, Youngjun You

Recently, the paradigm of defense technology has been shifting from manned weapon systems to distributed systems, including Manned-Unmanned Teaming(MUM-T) enabl...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2026.63.3.149

A State-adaptive Chaos Grey Wolf Optimizer with Dual-search Strategy for Shipyard Marking Path Optimization

Seongyou Bae, Youngin Cho, Heechang Yoon, Jong Hun Woo

Marking path optimization for shipyard nesting drawings is a complex NP-hard combinatorial problem involving directional constraints and precedence relationship...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2026.63.3.162

Development of Marine Transportation Greenhouse Gas Intensity (MGI) Considering Well-to-Wake Emissions and Maritime Transport Efficiency

Jungmin Kim, Yunju Jeon, Hongkyoung Shin, Youngsub Lim

Although international regulations aim to reduce greenhouse gas (GHG) emissions in the maritime sector, existing metrics such as the EEDI, Carbon Intensity Indi...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2026.63.3.171

Design and Development of a Hardware-in-the-loop Simulation for Site Integration Testing of an Extra-large Unmanned Underwater Vehicle

Jin Sun Kim

An extra-large unmanned underwater vehicle (XLUUV) is designed to perform various long-term missions autonomously. Because the size and weight of its subsystems...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2026.63.3.182

Inspection of Ship Block Support Installation Accuracy using Object Detection and Spatial Data Post-processing Algorithms based on 3D Point Cloud

Ki-Seok Jung, Bon-Yeong Park, Dong-Kun Lee

Precise support installation is critical for ship structural safety. However, conventional inspection methods are inefficient due to the time-consuming nature o...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2026.63.3.191

Shape Optimization of Hyperelastic Gaskets for Enhancing Sealing Performance in Naval Diesel Engine Coolant Systems

GaHyang Lee, Younghoon Kim, BeomSik Park, Sungchul Ha

This study focuses on the shape optimization and performance validation of coolant gaskets to resolve leakage issues at the cylinder head coolant outlets of nav...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2026.63.3.200