操縦性能データベースの構築とその解析結果

概要

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The resolution A.751 (18), interim standards for ship manoeuvrability, was adopted by the Assembly of International Maritime Organization (IMO) on 4th November, 1993. The standards are considered the interim for a period of 5 years from the date of their adoption by the Assembly. The interim means that the standards and the method of establishing that ships comply with the criteria should be reviewed in the light of new information and the results of experience with the present standards and on going research and developments. Therefore the data on manoeuvring test have been collected by Ministry of Transport in Japan and the manoeuvring performance database has been built and the data have been analyzed by Ship Research Institute. The results are shown as follows. (1) All ships comply with the criteria of turning ability. (2) Many ships do not comply with the criteria of second overshoot angle in 10° zigzag manoeuvr test and of first overshoot angle in 20° zigzag manoeuvr test for yaw checking and course keeping ability. Some of them have sisters and a few sister ships comply with the criteria. The differences of the sister ships are found to be the conditions of their drafts or trims. (3) One of the reasons why ships do not comply with the criterion of stopping ability is that there is a long interval between ordering astern and reversing propeller.
独立行政法人海上技術安全研究所の論文
1998-03-11