Development of a Sortie Generation Rate Simulation Using Discrete Event Simulation

Heechang Yoon, Seungheon Oh, Hyuk Lee, Sunah Jung, Junghoon Chung, Jonghoon Woo

The Sortie Generation Rate (SGR), which measures the number of sorties that an airbase can produce per unit of time, is crucial for assessing operational capaci...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2024.61.4.208

Autonomous Underwater Vehicle Control Using a Nonlinear Disturbance Observer Based Sliding Mode Controller

Soobin Ji, Seongjun Yoo, Wonkeun Youn

The sliding mode controller has characteristics that ensure stability and robustness against system uncertainty and disturbance. However, chattering occurs in t...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2024.61.4.216

Development of Maneuvering Scenario for Data-Driven Modeling of Ship Dynamics

Dong-Hwan Kim, Minchang Kim, Seungbeom Lee, Jeonghwa Seo

A method for quantifying the adaptability of ship maneuver scenarios for data-driven modeling of ship dynamics is developed based on the principal component ana...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2024.61.4.226

Computational Fluid Dynamics Analysis for Investigation of Hydrodynamic Force and Moment of a Marine Propeller in Heave Motion

Mina Kim, Dong-Hwan Kim, Jeonghwa Seo, Myoung-Soo Kim

The present study aims to identify the effects of the oblique inflow and vertical acceleration on a marine propeller's hydrodynamic force and moment. Computatio...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2024.61.4.236

Ship Dynamics Modeling Based on Multivariate Identification by Linear Combination of Principal Components

Dong-Hwan Kim, Minchang Kim, Seungbeom Lee, Jeonghwa Seo

The present study suggests a data-driven multivariate identification method based on principal component analysis and shows an application to ship dynamics mode...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2024.61.4.247

Forward Speeds and Turning Trajectories of a KSUPRAMAX Model Ship in Long-Crested Irregular and Equivalent Regular Waves

Dong-Jin Kim, Kunhang Yun, Chang-Seop Kwon, Yeon-Gyu Kim, Seung-Hyun Hwang

It is necessary to predict the ship’s manoeuvrabilities in waves for its safe operations in adverse weather. At the early design stage, free-running model tests...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2024.61.4.258

Analysis and Calculation of Factors Influencing the Sortie Generation Rate (SGR) of Aircraft-carrying Naval Ships

Sunah Jung, Heechang Yoon, Seungheon Oh, Jonghoon Woo, Sangwoo Bae, Dongi Park, Woongsub Lee, Jaehyuk Lee, Hyuk Lee, Junghoon Chung

The Sortie Generation Rate (SGR) is a critical performance indicator for carrier-based aircraft and is a key factor for the carrier design process. This study a...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2024.61.4.267

Research on Security Detection Policy Model in the SIEM for Ship

Gumjun Son, Jongwoo Ahn, Changsik Lee, Namseon Kang, Sungrok Kim

According to International Association of Classification Societies (IACS) Unified Requirement (UR) E26, ships contracted for construction after July 1, 2024 sho...

PDFFull Text XMLPubReaderePub

DOI: https://doi.org/10.3744/SNAK.2024.61.4.278