쇄빙시뮬레이션을 위한 반해석적 빙하중 계산법 고찰

• Published in: 大韓造船學會 論文集 Vol. 57; no. 6; pp. 353 - 364
• Main Authors: 김정환(Jeong-Hwan Kim), 장범선(Beom-Seon Jang), 김유일(Yooil Kim)
• Format: Journal Article
• Language: Korean
• Published: 대한조선학회 2020
• Subjects: 조선공학; Semi-analytical ice load calculation method(반해석적 빙하중 계산법); Ice-breaking process(쇄빙과정); Radial or circumferential cracking(반경 또는 원주방향 균열); Rotation(회전); In-plane splitting failure(면내분리파괴); Out-of-plane bending failure(면외굽힘파괴); Local crushing(국부분쇄)
• ISSN: 1225-1143; 2287-7355
• DOI: 10.3744/SNAK.2020.57.6.353

This paper presents the semi-analytical ice load calculation methods that are useful to simulate the ice-breaking process. Since the semi-analytical methods rely on the previously developed closed form equations or numerical analysis results, the user's exact understanding for the equations must be supported in order to use the methods properly. In this study, various failure modes of ice such as local crushing, in-plane splitting failure, out-of-plane bending failure and radial or circumferential cracking with rotation of the broken ice floe are considered. Based on the presented methods, the fracture modes were evaluated according to the size and thickness of ice. In addition, time series analysis for the ice-breaking process was performed on several ice conditions and the results were analyzed.