환경하중을 받는 FLBT의 선수각 특성 및 제어에 대한 수치연구

Abstract

In this paper, the characteristics of the heading angle of turret moored FLBT(Floating LNG bunkering system) under environmental load were studied using numerical analysis. Heading control simulation of the FLBT with a tunnel propulsion system installed on the stern skeg was carried out. The results of the model test and numerical calculations were used to estimate environmental loads of the FLBT. Static equilibrium points were checked and heading characteristics were confirmed through the plane motion simulations of the FLBT and the environmental load analysis. The Lagrangian multiplier method was used as the thrust allocation algorithm for the heading control. For propeller intact/damage condition, the heading control simulations were carried out and the controllable heading range was confirmed.