著者

丸尾 孟

出版者

公益社団法人日本船舶海洋工学会

雑誌

日本造船学会誌 (ISSN:03861597)

巻号頁・発行日

no.562, pp.159-161, 1976-04-25

著者

丸尾 孟 石井 正夫

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會論文集 (ISSN:18842062)

巻号頁・発行日

vol.1964, no.116, pp.22-29, 1964 (Released:2010-01-20)

参考文献数

3

被引用文献数

1

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It is theoretically well known that when the two bodies are running in the same direction and in a pair in water and/or on water surface, sometimes their total wave making resistance becomes smaller than that of the individual body due to the mutual interference of the waves caused.The proposed semi-submerged ship of the least wave resistance consists of the submerged main hull of the so-called Rankine's ovoid and the surface piercing bridge having sectional area of square cosine curve.Theoretically and experimentally, the combined hull form as mentioned above thus proves its capability of reducing the wave resistance tremendously in a certain specific speed range, i. e., the dimensions of bridge can be chosen so that the waves caused by the submerged hull running near surface may be diminished by the waves of the bridge at the specific speed.Furthermore, it is investigated that the upper limit of the optimum speed range of this type of vessel is between 0.35 and 0.40 in Froude's number.

著者

徳川 武定 鬼頭 史城 西山 哲男 丸尾 孟 田宮 真 谷 初蔵 木下 昌雄

出版者

公益社団法人日本船舶海洋工学会

雑誌

造船協會論文集 (ISSN:05148499)

巻号頁・発行日

no.94, pp.69-79, 232, 1954-02

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As is only too well known, the quick diving is one of the essential qualities of the presentday submarines. In this paper, first of all, the authors have made an analytical study on the diving motion of a submarine. In the next, the question may be solved as to how much degree the trim angle of the vessel does alter, when the vessel submerges with constant speed Vo, along the specified course, into the given depth of immersion D, in the duration of time T, under the regulation by a pair of horizontal rudders with a certain rudder angle. Fortunate to say, we have still on hand the underwater-performance curves based on the experimental results of the several types of submarine-models, and using them, we obtained numerical values of both the trim and rudder angles of submarine when she performs the diving motion as mentioned above. In conclusion, it is shown that, if we try to make the time duration needed T, as short as possible, the allowance in inclination of hull matters more, rather than the addition of rudder angle.