文章基本信息

标题：左右非対称なデミハルを有する双胴船の性能に関する実験的研究
本地全文：下载
作者：安川宏紀 ; 平田法隆 ; 池添修自等
期刊名称：日本船舶海洋工学会論文集
印刷版ISSN：1880-3717
电子版ISSN：1881-1760
出版年度：2012
卷号：15
页码：101-110
DOI：10.2534/jjasnaoe.15.101
语种：Japanese
出版社：社団法人日本船舶海洋工学会
摘要：To capture the ship performances of a catamaran with asymmetric demi-hulls, tank tests were carried out such as resistance test in still water, measurement test of wave height of wash, seakeeping test in regular head waves and captive test for measuring hydrodynamic forces on maneuvering using a scaled model with 2.036m in length. To investigate the effect of clearance of the demi-hulls on the performances, the clearance was changed in the tests as W/B = 2.55, 2.90 and 3.25, where W denotes the breadth overall and B the breadth of the demi-hull. Also, two ship models with different load water line tendencies were used: one is the inside flat and outside round type (IF-type) and the other the outside flat and inside round type (OF-type). The test results obtained are as follows: Residual resistance coefficient of W/B = 2.90 in IF-type is the smallest at the design speed corresponding to Froude number Fn = 0.44 and that of W/B = 2.55 in OF-type is secondary small. In the maximum wave height of the wash, OF-type is almost 30% smaller than IF-type in any demi-hull clearances.In both performances of heave and pitch motions, and added resistance in head waves, OF-type is superior to IF-type near the design speed. Smaller demi-hull clearance and IF-type are better in course keeping performance. The course keeping and turning performances are suitable in any conditions of the catamaran.