Experimental study on performance evaluation of fin-stabilizer

Abstract

Demand of good seakeeping performance is increasing for sea going vessels such as cruisers, naval ships and container ships. Especially roll motion is one of major concerns in evaluation of seakeeping performance because of its large resonance motion. Since large roll resonance motion is mainly arisen from inherent small damping, use of additional mechanism to provide roll damping can significantly reduce the roll motion. In this paper, a performance evaluation method of fin stabilizer, which is very useful for stabilizing roll motion of mid- and high-speed vessels, is described. Model test and time domain simulation methods are adopted for performance evaluation in which real operating situation of fin stabilizer can be modeled more realistically. It was found that model test and simulation results show good correlation.