漁船の船型,状態に関する船体運動学的考察-II : 96トン型鋼製鮭鱒流綱漁船の横方向運動の場合

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  • Some Considerations on the Effect of the Hull Form and the Ship's Condition during the Motions of Fishing Boat at Seas-II : On the transversal ship motions of a steel salmon drift net boat, type 96-GT
  • 漁船の船型,状態に関する船体運動学的考察-2-96トン型鋼製鮭鱒流網漁船の横方向運動の場合
  • ギョセン ノ センケイ ジョウタイ ニ カンスル センタイ ウンドウガクテキ

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The author has investigated the characteristics of the motions of fishing boats to analyse theoretically the motions of the ship in the waves from the aspect of their seakeeping qualities. In the previous paper, the effect of the hull form and the ship's condition during navigation upon the longitudinal motions of the boat were analysed and discussed. In this paper, the author reports about the effect of these upon the transversal motions. The Ordinary Strip Method (O.S.M.) has been used to analyse the ship motions theoretically, and this method is used on the basis of linear theory. However, boats have stabilization equipments such as bilge keels to decrease the rolling angle, generally. Accordingly the conformal roll damping coefficient which takes nonlinear roll damping resistance into consideration is adopted to treat the linear differential equation of motion. Furthermore, the availability of the O.S.M. was verified with experiments using a simulated radio controlled 2-meter fishing boat model in wind waves.

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