著者

黒田 七郎 田中 拓 上田 隆康 隆杉 憲行

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.1965, no.117, pp.292-309, 1965 (Released:2009-07-23)

参考文献数

15

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It is well known that a submarine has the excellent propulsive performance in high speed. navigation in deeply submerged condition, but few papers have sufficiently shown economical feasibility of submarines for commercial use.The authors have studied about the feasibility of submarine tankers with a view to develop technical problems of commercial submarines. At first, the experiments on five submarine tanker models with the circular and rectangular hull sections were performed by method of three-component measurements at Mejiro No. 2 Tank.Examining the resistance, stability, floating draft and general arrangement of the submarine tankers, the authors chose the ST-2 type rectangular hull form as best for the submrine tanker. The lines of the ST-2 type hull form was shown in Fig. 3The ST-2 type submarine tankers with various dead weights and shaft horse powers were designed and their investment, operation cost, annual profit, freight rate per dead weight and capital recovery factor were calculated. The results of this study were summarized in Fig. 19 to 23. The best submarine tanker in the point of view of commercial feasibility was 40, 000 tons in dead weight and 20, 000 horse powers in shaft horse power under restrained condition within 14 meters in maximum floating draft. On the contrary to the previous opinions, was shown the fact that the submarine tankers would not be very fast than present conventional tankers. As shown in Fig. 23, the submarine tanker would not have commercial feasibility without drastically decreased cost of nuclear power plants.

著者

幸田 功

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1937, no.61, pp.207-234, 1937-02-28 (Released:2009-07-23)

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Up to the present, 17.5 kg/cm2 G. and 365°C were the highest pressure and temperature in steam plants of merchant vessels, in this country.The steam condition of 27 kg/cm2 G. and 390°C was adopted in these new ships, where coal was the fuel, in order to improve the whole plant efficiency, also save weights and spaces of boilers.The three main boilers are the Mitubisi three drum type marine water tube boilers, having the heating surface of 385 square meters each, equipped with the Taylor multiple-retort underfeed stokers for burning the Fushun coal, the horizontal type convection superheaters and the tubular air preheaters.On the official sea trials of the S. S. “Oryoku-Maru, ” the whole plant efficiency of 18.9% was obtained.

著者

尾崎 辰之助

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1938, no.62, pp.77-90, 1938 (Released:2007-05-29)

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“Sumiyosi Maru” is the first Diesel-electric tug built in Japan, of which the speed control is of Ward-Leonard system. That was designed and equipped at Kawasaki Dock Yard Co., Ltd. for their own use. That was, also, equipped with as power plant to supply electric power for electric welding and compressed air to ships in harbour.The descriptions of hull, propelling machineries, power plant, trial trips and towing tests are successively set forth.

著者

稻垣 長止郎 鈴木 彌太郎

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1930, no.46, pp.55-80, 1930

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The completion of the M. S. Tatsuta Maru, the sister ship of the Asama Maru and the biggest motor liner of almost wholly a Japanese production, is an important event for Japanese Shipping and Shipbuilding. On this remarkable occasion, it does not appear to be wholly nonsense to make some reference about these ships.<br>In this paper, a short review is made about the vast designs and long efforts to arrive at the final elaborate design of the Pacific Liners.<br>Some results are also picked up from those of the exhaustive trials, and finally, an attempt is made to lay out 2, 000 B. H. P. geared Diesel installation for a high speed Trans Pacific Liner which might come into question in future.

著者

藤本 喜久雄

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1921, no.29, pp.20-66, 1921

著者

金井 亮浩 宮田 秀明

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

日本造船学会論文集 (ISSN:05148499)

巻号頁・発行日

vol.1995, no.177, pp.147-159, 1995 (Released:2010-01-22)

参考文献数

16

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The free surface shock wave (FSSW) generated by a wedge model is numerically studied. The numerical simulations performed by the finite difference method employing density function method show the systematic variation of the shock phenomenon due to the Froude number based on the draft as obtained by experiments. The typical nonlinear phenomena like wave breaking and abrupt changes of velocity vectors are successfully captured and the details of wave breaking induced by the FSSW are clarified. Wave breaking occurs to weaken the nonlinearity and shear vortex and longitudinal vortex are generated from the overturning point on the free surface. After the wave breaking a steep wave is reproduced due to the nonlinearity. This seems to be periodically repeated.

著者

遠山 光一 中村 壽 斎藤 七五郎

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1953, no.75, pp.7-21, 1953

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Nous avons l'intention de vous presanter un projet du cargo en ciment armé qui a été actuellement construit au Japon pendant la grande guerre 19421945.<BR>Les principales dimensions de ce navire sont suivantes : <BR>m<BR>Longueur entre perpendiculaires 60.000<BR>Largeur hors borde 10.000<BR>Creux 6.000<BR>Tirant d'eau en charge 5.000<BR>Déplacement en charge 2, 200 t<BR>Tonnage bruit 800 t<BR>Puissance du moteur à Diesel 750 ch.<BR>n<BR>Vitesse commerciale 9.5<BR>n<BR>Vitesse aux essais 10.83<BR>Dáprès l'expérience nous avons donné à la paragraphe 3 des avantages et des désavantages d'un navire en ciment armé par rapport à celles d'un navire en acier.<BR>La partie essentiele de ce memoire est les résultas des calculs des efforts, des tentions, des compressions et des cisaillements de la coque en ciment armé.

著者

田村 春生 大西 正次

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.1954, no.95, pp.239-249, 1954 (Released:2007-05-28)

参考文献数

14

被引用文献数

1

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Inhibited hydrochloric acid is generally used for removing rust from new boilers and insoluble deposit such as scale from old ones. Addition of reducing phosphoric acid to this acid results in high solubility of metal oxides or salts and anti-corrosive surface after cleaning, and can clean perfectly marine boilers economically even at room temperatures.Thiourea and fulfurol inhibits the corrosibility of this type of acid and addition of wetting agent lowers this rate of attack.Details of cleaning methods and results with inhibited reducing acid solution have been reported in this essay.

著者

安川 宏紀

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

日本造船学会論文集 (ISSN:05148499)

巻号頁・発行日

vol.1999, no.186, pp.1-6, 1999 (Released:2009-09-04)

参考文献数

11

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A hull form improvement method is presented using Genetic Algorithm in conjunction with Rankine source method based on a wave resistance theory for modified hull. By means of the present method, improvement of fore ship form is introduced for Series 60 (Cb =0.6) hull. As a result, the wave resistance is reduced about 25% at Fn=0.3 by modifying the original form to bulb-like bow shape. We found that GA improves the estimation accuracy of the optimum hull form.

著者

Tanehiko Oka

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

Journal of Zosen Kiokai (ISSN:18842062)

巻号頁・発行日

vol.1953, no.85, pp.139-158, 1952 (Released:2007-05-28)

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At the beginning of this report the author briefly touches the particulars of this vessel, and then describes some speacial arrangements, constructions, and equipments. Detaileddescriptions of refrigerating plants, quick freezing plants, and refrigerated cargo space are, shown in tables. After rough description on the dealing operation with whale meat, meatcutter, meat conveyor, quick freezing room installation, cargo space insulation and refrigeratingmachinery space are explained according to the analysis of cooling test of insulatedholds, 55% allowance for heat penetration is recorded.

著者

小野 暢三

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1936, no.59, pp.85-98, 1937-02-20 (Released:2009-07-23)

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The first part of the paper deals with the combination comprising a triple expansion engine, with poppet valves for high and intermediate pressure cylinders, and direct coupled to the main shaft line, and an exhaust steam turbine, to utilize the energy contained in the exhaust steam from the engine, double reduction geared to the main shaft line. In this system, the turbine is to work for ahead direction only; an automatic friction clutch is to disengage the turbine when the main engine is to run in astern direction.Mechanical regilient coupling composed of friction disks and a number of coil springs is contained inside the first reduction gear wheel, and is arranged to take off uneven torsional shocks taking place due to the action of the crank shaft of the reciprocating engine.In the second part, description is given about the combination consisting of a set of double compound high speed engine, single reduction geared to the main shaft line, and a low pressure turbine, double reduction geared to the same line. In this case an astern turbine is also arranged. The exhaust steam from the engine is controlled with special manoeuvering valve to enter into either ahead or astern turbine as desired and the valve is to cooperate with the reversing mechanism of the reciprocating engine.Particulars of the ships having these systems of combination machinery are given in the attached table also the performance data of their maiden voyages are given in another table.A sketch of the design of the machinery space of twin screw engines and its brief description is given in the last part of the paper.

著者

吉見 豐

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1948, no.79, pp.31-37, 1948 (Released:2007-05-29)

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It has elapsed many years since the water tube boilers were introduced into marine use, with full success in European countries and in America. In Japan, on the contrary, this type of boiler has been used for some large cargo ships before the war and for a few kinds of War-time Standard Type of Ship under instruction of the former Japanese Navy during the war, but now no positive demands.It is generally recognized that through the possibility of high pressure and high temperature steam usiug the water tube boiler, the higher thermal efficiency and weight reduction in total engine part are gotten. This fact mokes us profitable to adopt the boiler in this country where fuel and steel are excessibly short. Nevertheless, there are hesitations in our ship world to adopt this type for marine boiler due to li anxiety of reliability and difficulty of handling.The prob ems on reliability and difficulty in handling. are as follows;(1) Danger of low water, (2) Trouble through feed water, (3) Easiness of coal burning.In this paper, the above problems should be investigated to clarify the reality, and if possible new design on the water tube boiler and finally the remedy to so ve these problems will be protested.

著者

和辻 春樹

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1939, no.65, pp.187-222, 1939 (Released:2007-05-29)

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The “Argentina Maru” is the first motor passenger and cargo ship to he constructed under the special Shipbuilding Subsily of the first grade grented by the Japanese Government, and this magnificent Round-the-World Liner is wholly of Japanese construction and materials. In vi w of these circumstances, it seems to be appropriate to make some reference to the ship; therefore a general description of the vast design, construction, equipment, etc., is given in this paper.

著者

南波 松太郎

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1943, no.72, pp.45-99, 1943-12-30 (Released:2010-01-22)

参考文献数

130

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The purpose of this paper is to explain a portion of the experience on design and construction of Ice-Breakers. The author is pleased to express his wish to expect further theoretical and experimental research to be made by the experts on various points mentioned in this paper.

著者

森本 猛夫

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1936, no.59, pp.121-162, 1937-02-20 (Released:2010-01-20)

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The antarctic whaling tanker, “Nisshin Maru” (22, 000 tons deadweight) was successfully built on 28 th Sept. '36 by the Kawasaki Dockyard Co., Ltd., Kobe, in the record of only 216 days from laying down of the keel to the delivery to Messrs. Taiyohogei Kabushiki Kaisha.The vessel is the largest tanker of its kind ever built in Japan, and the following dates indicate the extraordinary speedy program at which she was built in such a short period.The contract signed 28 th, November, 1935.The keel laid 26 th, February, 1936.The launching 1 st, August, 1936.The official trials 14 th, September, 1936.The Delivery 28 th, September, 1936.There were many difficulties which they had to overcome, such as : difficult construction on an ordinary building slip not well arranged with up-to-date crane equipments, unusual short time limit of construction, and hardship of prompt collection of materials, etc.They laid down therefore a strict schedule so as not to delay the delivery and by good luck, it was faithfully obeyed by the men of all departments of the Dockyard Co.Combined with the mutual co-operation of all men and proper supply of all necessary materials, the schedule was very satisfactorily carried out in good order.On the other hand, special attention wa so pa to the working hours as well as labour shifts so that the workmen should not be overworked either mentally or physically.Thus their earnest efforts have at last produced good results with such an epoch-making record of speedy ship building which has never been experienced in the world.In addition, this vessel adopted the “Isherwood Bracketless system, ” the simplicity of which has proved a good effect upon such a quick work as “Nisshin Maru.” The principal dimensions are as follows : Length over all…550'-0''Length between perpendiculars…535'-0''Breadth moulded…74'-0''Depth moulded to upper deck…48'-9''Load draught…34'-25/16''Gross tonnage…16, 764 tonsDeadweight…22, 000 tonsMaximum speed…14'5 knots

著者

常松 四郎

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1941, no.69, pp.243-269, 1941-07-20 (Released:2009-09-04)

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The purpose of this paper is to explain a portion of the Author's experience on design and construction of Tankers. The Author is pleased to express his wish to expect further theoretical and experimental research to be made by the experts on various points mentioned in this paper.

著者

乾 崇夫 高幣 哲夫

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.1961, no.110, pp.75-89, 1961 (Released:2009-07-23)

参考文献数

12

被引用文献数

1

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今春3月, 瀬戸内海航路高速客船くれない丸を供試船として, Waveless船型理論にもとづく超大型バルブの「船首波打消し」の実船試験が行なわれた。今回これを「水槽試験」・「実船試験」・「波形観測」の3篇にわけて報告する。以下はその第1部 (前篇) 「水槽試験」の報告であるが, ここでは他の2篇と異なり, 記述の範囲を今回行なわれた実船試験のみに限定しないで, くれない丸の計画当初から現船型決定の経緯にまでさかのぼり, くれない丸がその計画・建造・就航・実船試験の各時点において東大水槽におけるWaveless船型理論の発展の経過といかに交渉しあつたかをあきらかにすることに意を用いた。Waveless船型理論では在来の水槽試験のほかに, 「波形分析」という新しい船型学的手法を重視する。今回も当然模型・実船の両方についてこの「波形分析」が試みられたが, この部分は一括して第3部 (後篇) 「波形観測」で取扱われている。なお, 第2部 (中篇) 「実船試験」では, 中心となる速力試験のほかにZ操船試験と旋回試験とにもふれられている。

著者

玉井 喬介

出版者

The Japan Society of Naval Architects and Ocean Engineers

雑誌

造船協會會報 (ISSN:18842054)

巻号頁・発行日

vol.1931, no.47, pp.147-184, 1931-04-30 (Released:2009-07-23)

参考文献数

8

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It is a well known fact that oil tankers in loaded conditions sustain severe sagging stress on top-side member in rough weather. The motor tanker “San Diego Maru” encountered extremely rough seas in Pacific Ocean during a winter voyage, resulting severe bucklings and some cracks on the upper deck plating and also upper strakes of longitudinal bulkheads in midship portion. The author analyses the causes of the damage referred to, describing her general longitudinal strength among waves, the effect of impinging water on decks, together with some investigation on the theoretical buckling stress on deck plating stiffened with beams of comparatively light scantling.

著者

石田 千代治

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.1953, no.93, pp.117-126, 1953 (Released:2007-05-28)

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The present research has been conducted on the corrosion of the marine engines of about forty sunken ships by means of the field investigation or the deta offered according to the following items:(a) The relation between the corrosion and the period of the submergence of the materials.(b) Is there any difference in corrosion due to the kind of the engines(c) Is there any difference in corrosion between the ships of war-time standardized types and the ordinary ships? (d)Possibility or Impossibility of the reuse of the refloated engines.(e) The process of the repairs of the refloated engines.(f) The condition of the operation of the reused engine.The results obtained are as follows:(a) The corrosion makes progress rapidly at the outset. but after a few years corrosion makes progress gradually.(b) The extent of corrosion of the reciprocating engine is almost similar to that of the diesel engine. In the case of the steam turbine and the mechanical reduction gear, the extent of corrosion is comparatively slight. The boiler may be reused only by replacing the corroded smoke tubes with new ones.(c) The extent of corrosion in the ships of war-time standardized type is generally very remarable compared with the ordinary ships.(d) Corrosion generates on both the small-sized and larger-sized materials, but. as the extent of corrosion is more remarkable in the case of the smaller sized materials. the reuse of the smaller sized materials is almost impossible, while the reuse of the latter is possible(e) The process of the repairs is as follows: After the corroded parts of the engine are boiled in the soda solution, the corroded face of the friction parts are filed off. The other sound parts of the engine may be used without any treatment.(f) The operating condition of the reused engine is pretty good on the whole. The present research has been continued by the Maritime Institute since the writer's initial field investigation conducted in April, 1946, at Mitsubishi Dock Yard in Nagasaki on the corrosion of the main engine of the Kongo-maru, the refloated steamer of National Railway Corporation, receiving grants in aid from the Ministry of Transportation. the former owner of the above mentioned Institute and from the Ministry of Education, the present owner of the Institute.It would be a happy thing. if the present thesis could furnish even a little contribution to the refloating of the sunken ships in the future.

著者

高幣 哲夫 乾 崇夫

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.1961, no.110, pp.105-118, 1961 (Released:2009-07-23)

参考文献数

8

被引用文献数

1

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この報告は, 今春行なわれたくれない丸の大型バルブによる船首波打消しの実船実験およびこれに先立つて行なわれた東大の2.5m模型水槽試験のうち, 波形分析という新しい船型学的研究方法を適用した部分について述べたものである。