関西造船協会誌

表紙

原稿種別: 表紙
p. Cover1-
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_Cover1

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目次

原稿種別: 表紙
p. Cover2-
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_Cover2

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船殼内業工程における合理化の二三の具体例

栗岡辰巳, 竹内秀司

原稿種別: 本文
p. 1-8
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_1

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The Japanese shipbuilding industry has achieved wide range of rationalization due to labor shortage and severe circumstances in economics. The effort for innovation must be directed first to reduction of production period and development of efficiency in operations. This paper describes successful examples of a shipyard production management regarding the beginning part of shipbuilding process. The authors, aproaching from an innovational viewpoint, have attained an improved procedure for scheduling and dispatching of steel materials, as well as a continuous flow-production system at marking, cutting and sub-assembing stages.

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高周波誘導加熱によるロー付および抵抗加熱によるロー付に関する研究

武田秀雄, 黒井友良, 山口条介

原稿種別: 本文
p. 9-14
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_9

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Extensive use is made of the copper alloy pipes in the way of ship's cargo oil tank heating coil arrangements as well as remote control piping systems, and all the pipe joints for them are formed by means of brazing. Conventional way of meeting the brazing heat requirement with oxigen-acetylene gas was not used without its criticism : it takes relatively skilled hand and consumes too much time in practice. In the light of growing demand for a simpler method which can provide greater safety and higher efficiency, two new brazing methods utilizing different sources of heat have been developed and engineered into practicality this time. Detailed description of the developments is given in the paper.

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高周波誘導加熱による熱間成形(第1報) : 大径鋼製フランジの製作

武田秀雄, 黒井友良, 山口条介

原稿種別: 本文
p. 15-23
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_15

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As one of the applications of high frequency induction heating to ship outfitting work, a new process of manufacturing large bore steel flanges has been developed and put into practical use. The conventional process of manufacturing flanges using forging or punching takes a long time, and so it has become necessary to rationalize it and improve its efficiency. The new hot working process of manufacturing flanges by bending and pressure butt welding using high frequency induction heating has made it possible to manufacture flanges with a higher efficiency and at a lower cost. This new process is introduced in this paper.

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機関部ぎ装の合理化の一方法 : 大型ユニットぎ装方法採用による成果

正村一夫, 鎌屋義明, 河越義忠

原稿種別: 本文
p. 24-26
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_24

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With respect to outfitting operations of machineries, technical method of rationalization, which set out from an attempt to do outfitting works inside the door, has now developed to the method of large unit assembling. The large unit worked out in the same arrangement as that as that of the whole floor plan in machinery space can be assembled in shop without being disturbed by any sort of obstacle, irrespective of stages of hull construction. Both the large unit method and the improved outfitting shops with versatile functions to control all the outfitting operations are the most important factors for progress of rationlization.

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有限要素法による鋼構造物の彈塑性解析(第3報) : 種々の荷重を受ける三角形板の座屈

上田幸雄, 松石正克

原稿種別: 本文
p. 27-32
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_27

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The recent development in high speed digital computers has helped us to use a numerical approach, termed "the finite element method". The authors developed a method employing the finite element method for the calculation of elastic, elastic-plastic and plastic buckling of plate and applied the method to compressive buckling of plate having discontinuous boundary conditions and obtained quite satisfactory results. In the paper, the authors, using a conforming shape function and triangular finite elements, developed a method of analysis to the buckling problems. The method solves easily the buckling of plate with any complicated geometrical feature and gives a value converging to the exact value. As a typical example of the application, buckling of triangular bracket-type plates under various loading conditions was solved by the method and the solution was compared with the analytical solution obtained by the energy method. The rasult was quite satisfactory and verified the usefulness of the method.

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等分布荷重を受ける平板の上界崩壊荷重について

渡辺四郎

原稿種別: 本文
p. 33-36
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_33

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An upper bound for the plastic collapse load of flat plates under uniformly distributed loads is studied. And, assuming that the deformations are convex at every parts, the minimum upper bound is determined by the following conditions. 1. Every deformed planes include edge lines. 2. Hinge lines are straight. 3. P=(∫_<s1>kMsds)/(I_1)=(∫_<s2>kMsds)/(I_2)……=(∫_<si>kMsds)/(I_i) P : Collapse load Ms=Mxsin^2φ+Mycos^2φ k=2 for fixed edges=1 for supported edges Ii=1/2∫_<si>r^2ds for fixed or supported edges =0 for free edges

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不規則波中における最大横搖角について

岩井清, 宮本雅史

原稿種別: 本文
p. 37-44
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_37

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When designing special ships such as LPG carriers, container ships, etc., it is necessary to estimte the maximum rolling angle at the initial stage of the design. For this purpose, we usually use the approximate formula √<(138rs)/N> stated in the Safety Regulation. However, it seems this formula cannot give an accurate estimation for large vessels with long rolling periods, since it is based on the resonance in beam seas. As for ship motions in oblique waves equations were demonstrated by Yamazaki and Fukuda. But they are too complicated to be used at the initial stage of the design. For this reason the authors attempt to introduce an approximate formula for calculating rolling angles in oblique irregular waves which can be easily adopted for the present purpose.

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Slimeによる摩擦抵抗増加について

渡辺四郎, 永松宣雄, 横尾幸一, 川上善郎

原稿種別: 本文
p. 45-51
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_45

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Recently, remarkable improvement of anti-fouling paints has been achieved and anti-fouling effects against shells, barnacles, moss and grasses seem to be almost complete. However, slime (invisible thin film which collects on any surface in the first few days of immersion) adheres to these paint surfaces. In this paper, the effects of the slime on frictional resistance and the separation of slime by the flow are investigated by experiments of concentric cylinders, a model ship and rotating disks. By the extrapolation to actual ships from these test results, augmentation in total resistance due to slime is estimated to be about 9〜l0%, provided no separation of slime occurs.

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会報

原稿種別: 付録等
p. 52-57
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_52

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明治丸

原稿種別: 付録等
p. App1-
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_App1

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富隆丸

原稿種別: 付録等
p. App2-
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_App2

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MANGELIA

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p. App3-
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_App3

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FAUSTINA

原稿種別: 付録等
p. App4-
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_App4

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裏表紙

原稿種別: 表紙
p. Cover3-
発行日: 1969/03/31
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.131.0_Cover3

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