풍하중에 의한 바지선의 예인 시 거동특성 변화에 관한 연구

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 29; no. 4; pp. 283 - 290
• Main Authors: 남보우(Bo Woo Nam), 최영명(Young-Myoung Choi), 홍사영(Sa Young Hong)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2015
• Subjects: 해양공학; Towing stability 예인안정성; Towing characteristics 예인 특성; Wind Force 풍하중; Barge 바지선; Towline 예인줄
• ISSN: 1225-0767; 2287-6715

This paper presents the results of a numerical study on the towing characteristics of a barge under various wind conditions. First, stability criteria, including the wind force, were derived based on the linear motion equations of a towed vessel. The effect of the wind force on the towing stability was investigated using stability criteria. Next, towing simulations were carried out using a nonlinear time-domain simulation method. In this case, the towline was modeled as a simple spring-damper, and the wind force was computed using the wind coefficient from CFD calculations. Simulations were conducted for a barge under a constant towing speed and constant wind speed conditions. The effect of the wind direction on the slewing motion was also observed. In addition, a series of numerical simulations using variable wind speeds were performed for the present barge with and without a skeg.