新型受動制御式減揺水槽のシステムシミュレーシヨンと実海域試験

概要

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Effectiveness of the newly developed passive-controlled anti-roll tank is studied in system simulation. This tank is deformed U tube, Frahm type ART, that has a butterfly valve at the centerline of the tank and this valve controls the fluid motion in the tank. To get minimum weight of the tank fluid and maximum restoring moment, ART dimensions and configurations are optimized. The weight ratio of the tank fluid per the ship displacement is 2%. The valve control algorism adopted in this system is simple and newly proposed one. Bench test of irregular roll simulation and at the sea trial shows the effectiveness of this algorism and tank system. Maximum roll angle is expected at the ship's natural period, but the measured roll angle transfer function of this system at the sea shows up to 75% roll angle reduction compared to the without ART ship.
社団法人日本船舶海洋工学会の論文
1993-03-25