주성분 분석을 통한 선박 조종 중 4자유도 동역학 특성 연구

The present study concerns a feasibility study for applying principal component analysis to ship dynamics in maneuver. Using the four degrees of freedom standard modular model for ship dynamics maneuver simulations of large angle zigzag tests with rudder deflection angle variations are conducted. Th...

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Published in大韓造船學會 論文集 Vol. 61; no. 1; pp. 29 - 43
Main Authors 김동환, 김민창, 이승범, 서정화, Dong-Hwan Kim, Minchang Kim, Seungbeom Lee, Jeonghwa Seo
Format Journal Article
LanguageEnglish
Korean
Published 대한조선학회 01.02.2024
Subjects
조선공학
Online AccessGet full text
ISSN1225-1143
2287-7355
DOI10.3744/SNAK.2024.61.1.29

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Abstract The present study concerns a feasibility study for applying principal component analysis to ship dynamics in maneuver. Using the four degrees of freedom standard modular model for ship dynamics maneuver simulations of large angle zigzag tests with rudder deflection angle variations are conducted. The datasets of ship motion, hydrodynamic force, and moment during the maneuver are acquired to identify the principal modes. The covariance matrix of obtained ship dynamics variables shows a strong linear correlation between the motion, hydrodynamic force, and moment, except the surge force. Four eigenvectors of the covariance matrix are selected as the principal modes of ship dynamics. Using the principal modes, ship motion in turning circle and zigzag tests is reconstructed, showing good agreement with the original data.
AbstractList The present study concerns a feasibility study for applying principal component analysis to ship dynamics in maneuver. Using the four degrees of freedom standard modular model for ship dynamics maneuver simulations of large angle zigzag tests with rudder deflection angle variations are conducted. The datasets of ship motion, hydrodynamic force, and moment during the maneuver are acquired to identify the principal modes. The covariance matrix of obtained ship dynamics variables shows a strong linear correlation between the motion, hydrodynamic force, and moment, except the surge force. Four eigenvectors of the covariance matrix are selected as the principal modes of ship dynamics. Using the principal modes, ship motion in turning circle and zigzag tests is reconstructed, showing good agreement with the original data.
The present study concerns a feasibility study for applying principal component analysis to ship dynamics in maneuver. Using the four degrees of freedom standard modular model for ship dynamics maneuver simulations of large angle zigzag tests with rudder deflection angle variations are conducted. The datasets of ship motion, hydrodynamic force, and moment during the maneuver are acquired to identify the principal modes. The covariance matrix of obtained ship dynamics variables shows a strong linear correlation between the motion, hydrodynamic force, and moment, except the surge force. Four eigenvectors of the covariance matrix are selected as the principal modes of ship dynamics. Using the principal modes, ship motion in turning circle and zigzag tests is reconstructed, showing good agreement with the original data. KCI Citation Count: 0
Author 김민창
서정화
Seungbeom Lee
이승범
Minchang Kim
김동환
Jeonghwa Seo
Dong-Hwan Kim
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  fullname: Minchang Kim
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  fullname: Jeonghwa Seo
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SubjectTerms 조선공학
Title 주성분 분석을 통한 선박 조종 중 4자유도 동역학 특성 연구
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