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Title:
ウォータージェット推進船の自航試験方法
Document Type and Number:
Japanese Patent JP4252472
Kind Code:
B2
Abstract:

To provide a self-propulsion test method of a water jet propelled ship capable of obtaining two self-propulsion factors of the wake ratio and the thrust reduction ratio in an experimental and analytical manner in a tank test to obtain the self-propulsion elements of the water jet propelled ship.

In the self-propulsion test to obtain the self-propulsion factors of a water jet propelled ship, the self-propulsion test is carried out by using two or more nozzles in which the ejection area of a water jet propeller. Two or more equations are simultaneously formed from the measured values at the same ship speed and the same pump inlet flow speed ratio obtained in the self-propulsion test while the thrust reduction ratio and the wake ratio are unknown factors.

COPYRIGHT: (C)2005,JPO&NCIPI


Inventors:
Matsumura Takemi
Naoki Ohba
Susumu Yamashita
Application Number:
JP2004038057A
Publication Date:
April 08, 2009
Filing Date:
February 16, 2004
Export Citation:
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Assignee:
Mitsui Shipbuilding Co., Ltd.
International Classes:
B63B71/20; B63H11/08
Domestic Patent References:
JP55068499A
JP9002386A
JP3118293A
JP2001080581A
Other References:
推進工学シンポジウム実行委員会,次世代船開発のための推進工学シンポジウム,推進工学シンポジウムテキスト,日本,日本造船学会,1991年 4月 1日,第6章 ウォータージェット推進,第167-209頁,推進性能研究委員会・第4回シンポジウム
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita