帆の種類別によるキャンバスの取り扱い易さと受風効果

概要

論文の詳細を見る
In 1998, capsizing by rough seas was 64 of 3710 casualties of the vessels from 20 to 200 tons, but for over 500 tons vessels, it was only 3 of 1737. So, for small vessels, it is important to run into the nearest harbor as soon as possible when the sea state deteriorate. When a small vessel scuds before the strong wind in spreading a canvas around handrail of flying bridge, the manoeuvrability becomes more stable. Therefore the authors are proposing the method to strengthen course keeping ability by spreading a canvas. In this report, the manoeuvrability and handling work of 4 types of canvas and a board type were tried. In order to verify the effects of canvases and board, model experiments were carried out at the wind tunnel with water tank to measure wind forces and moment and numerical investigations were conducted using these experimental data. Furthermore, the setting and handling work of each canvas and board type was tried on board training ship "Kaigi Maru". So, the authors got the guideline about effective type in manoeuvring and the easiest type in handling work.
社団法人日本航海学会の論文
2000-03-25