高速三胴船の性能に及ぼすアウトリガー配置の影響 : 第2報: 正面向波中での船体動揺

概要

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Influence of outrigger position of a high speed trimaran on the wave-induced motion was investigated. The trimaran is composed of the center hull with L/B=8.0 and B/T=3.57 where L, B and T denote the length, breadth and draft respectively, and the outriggers with ι/L=0.375 where ι denotes the outrigger length. Using the trimaran model with 2.0m in ship length, tank test was carried out to capture the ship motions in regular head waves. The wave-induced motions of the trimaran, as a whole, become larger than those of the center hull which is regarded as a monohull ship. With shifting the outriggers rearward, the motion amplitude increases in the long wave-length range and decreases in the short wave-length range. Strip method excluding the hydrodynamic interactions between center hull and outriggers can capture qualitatively the change of the wave-induced motions with the outrigger position changes.
社団法人日本船舶海洋工学会の論文