쇄빙연구선 ARAON호의 북극해 실측 데이터에 기초한 국부 빙하중 추정식의 수정

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 33; no. 2; pp. 161 - 167
• Main Authors: 조성록(Sungrok Cho), 최경식(Kyungsik Choi)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2019
• Subjects: 해양공학; Probabilistic analysis 확률 해석; Arctic field data 북극해계측 데이터; IBRV ARAON 쇄빙연구선 아라온호; Strain gage 변형률 게이지; Local ice load 국부 빙하중
• ISSN: 1225-0767; 2287-6715
• DOI: 10.26748/KSOE.2019.013

This paper focuses on a newly designed ice load formula based on the ARAON's 2016 Arctic field data in order to improve a structural design against ice loads. The strain gage signals from ARAON's hull plating were converted to the local ice pressure upon the hull plating using the influence coefficient matrix and finite element analysis. First, a traditional pressure-area relationship is derived by applying probabilistic approaches to handle the strains measured onboard the ARAON. Then, the local ice load prediction formula is re-analyzed after reviewing the ARAON's additional field data to consider information about the ship speed and thickness of the sea ice. It is shown that the newly developed pressure-area relationship well reflects the influence of other design parameters such as the ship speed and ice thickness in the prediction of local ice loads on Arctic vessels.