関西造船協会誌

表紙

原稿種別: 表紙
p. Cover1-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_Cover1

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目次

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p. Cover2-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_Cover2

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会告

原稿種別: 付録等
p. 1-3
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_1

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随想

勝俣直治

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p. 4-6
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_4

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港内交通船設計の一資料(その9) : 高速艇型について

池田勝

原稿種別: 本文
p. 7-16
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_7

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As a series of studies on small harbour crafts, the data on high speed crafts are presented in this paper.

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深海潜水調査船用浮力材 (第2報)

遠藤倫正, 横田公男, 難波直愛, 関川正文, 石川隆夫

原稿種別: 本文
p. 17-24
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_17

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The necessities of high strength, low density buoyancy material for deep submergence vehicles were discussed in the preceding report and the superiorities of syntactic foam were shown by comparing with the other candidates. In this report, the relation between the properties of various fillers and resin matrix and the major factors to be controlled to obtain homogeneous syntactic foam are discussed. As the results, it becomes clear that high strength glass sphere of B-35D type is required for 6,000m submersible use when the standard type epoxy resin is used and that it is most important to establish the casting procedure preventing the mixing of air bubbles in foam. The prospect to utilize higher strength epoxy resin is also investigated and the difficulties to control exothermal reaction in casting large scale syntactic foam are made clear.

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巨大溶接工場の換気法

岡村紘

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p. 25-36
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_25

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A huge factory is ventilated with monitor roof, lots of roof fans, and/or natural ventilation. Welding shops at shipyard for construction of huge vessels are also conventionary ventilated. However, emitted enormous volume of fume during welding, the shop is poorly ventilated. In this report, some new approaches are developed on the idea of parallel ventilation current and effective exhaust: welding fume is traped in parallel ventilation current of the least air swirl as possible which is caused by ventilation facilities, and escorted to exhaust electric fans which are equipped on the wall of lower reaches of the current. One of the materializations of the idea is the upward ventilation current. Fresh air is supplied through many holes on holed welding floor to grow into parallel ventilation current which tend to roof, and welding fume is trapped in the current to roof ventilators without diffusion. This is effective because welding fume has the initial upward velocity, and found successful in Sakai Shipyard of this company. Another is the horizontal ventilation current. Air is accelerated by many electric fans at the regular intervals to grow into horizontal current which has enough velocity to able to catch welding fume running away upward. Hence, the current should have more velocity than the former because the direction of the current is perpendicular to that of fume. Performance and arrangement of electric fans might be designed using the velocity distribution and equi-velocity lines of the jet from electric fans which is calculated in the report.

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大型OBOキャリヤーのトップサイドタンクの構造強度について

中村昭和, 難波篤直, 堺由輝, 中山幹彦, 大石智也

原稿種別: 本文
p. 37-42
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_37

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We have recently come to recognize that there is a possibility of very severe stress condition of the transverse webs in the top side tanks, through the experience in damages caused at the said parts of the two O. B. O. carriers which were built in our yard about three years ago. Attaching importance to the damages, we measured stresses at the top side tank of the similar ship which was going to be delivered, and made structural analysis as well, to make clear the cause of the damages. As a result of such measurement and calculation, we found that the calculated stresses were almost equal to the actually measured ones. Further, we also made calculation on the damaged ships and could conclude that the cause of the damages would be the high stress caused at the damaged parts when the ship heavily heels and the stress corrosion of the members caused thereby.

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有限要素法による船倉の強度解析 : 第l報二重底の強度

船木俊彦, 河野卓, 岸野勝, 山本隆夫

原稿種別: 本文
p. 43-50
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_43

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In recent year, the high-speed electronic computer has remarkably advanced. The Finite Element Method (F. E. M.) is often applied to analysis of strength of ship hull structures. In the F. E. M. analysis, finer division of finite elements usually is better in accuracy. But in a large structure like a ship hull, the number of the elements become enormous. In this paper, we used comparatively large elements for analysis of a large sized structure like a double bottom in order to save the running time of computer and the results are discussed with respect to accuracy.

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水圧および圧縮をうける矩形板の座屈について (第2報)

岡田博雄, 福本佳夫

原稿種別: 本文
p. 51-58
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_51

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In this paper, the behavior of a plate is investigated under increasing compression and constant inclined hydraulic pressure by means of the energy method shown in our previous paper. Numerical calculations are performed for a case of the aspect ratio α=2, and it is seen that in the case of inclined hydraulic pressure there is no bifurcation in equilibrium states, but there are three kinds of typical deformation patterns for such a plate according to the magnitude of hydraulic pressure in the same manner as the case of uniform hydraulic pressure. And buckling load is also discussed in such practical cases that there are disturbances.

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没水体の形状抵抗について (その3)

水野俊明, 下山克英

原稿種別: 本文
p. 59-66
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_59

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Resistance tests are carried out on several submerged doubld models to investigate the effect of secondary flow on their form resistance. One of the models, the parent form model, has similar sectional form to SR 41 model and the others have Lewis form section so chosen by Bessho's theory that the energy of secondary flow around the model section, T_2, is minimum on the condition of flat keel line and T_2 is zero when there is no condition on keel line. The result shows that the form factor of the model of which T_2 is minimum is less than that of the parent form model and is the least of which T_2 is zero, as Bessho suggested.

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二次元スペクトルを用いた波形解析について

池畑光尚, 大橋清義, 田中満佐人

原稿種別: 本文
p. 67-73
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_67

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It has been realized that the spectrum of measured wave profile along a longitudinal cut and the wave-making resistance estimated from them are considerably dependent on the distance between the course of the ship and the longitudinal cut. This fact differs from the conclusion of the linearized theory of wave-making resistance of ships, and has been thought caused by the defect of the correction of the truncation of reflected waves on side walls or by the effect of local wave on the longitudinal cut. But, the conclusions of recent investigations on these fields are not enongh to explain the difference of the results on the cuts of different distance. The authors thought that the application of the linearized theory of wave-making as it is to real wave patterns created by the ship or by the model may be the main reason of this defect of wave analysis. Then, starting from two dimensional Fourier analysis, the two dimensional wave spectrum can be estimated from the measured wave pattern. And, when one investigates this two dimensional spectrum of the real wave pattern comparing to one dimensional spectra derived from the ordinary longitudinal cut method and to properties of the theoretical ship wave system based on the linearized theory, the characteristics of the actual wave pattern generated by ships may be distinctly grasped and the above mentioned defect of the ordinary longitudinal cut method 〓 wave analysis must be improved. Considering thus, the authors deduced the theory of wave analysis based on two dimensional wave spectra and applied it to the wave profiles of 2m Wigley model measured on six longitudinal cuts in the towing tank. The results showed that two dimensional spectra of real wave patterns are remarkably different from the spectra of the linearized theory.

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技術と芸術

梁井泉

原稿種別: 本文
p. 74-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_74_1

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職業意識

T 生

原稿種別: 本文
p. 74-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_74_2

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造船屋に仲間入りして

T. I.

原稿種別: 本文
p. 74-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_74_3

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小型水中作業船「はくよう」

川崎重工業株式会社潜水艦設計部

原稿種別: 本文
p. 75-80
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_75

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海洋汚染について : 船舶のし尿処理を中心として

長尾実三, 伊木貞夫

原稿種別: 本文
p. 81-98
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_81

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船舶し尿処理装置

原稿種別: 付録等
p. 99-111
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_99

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会報

原稿種別: 付録等
p. 112-116
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_112

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HOEGH HILL

原稿種別: 付録等
p. App1-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_App1

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JALNA

原稿種別: 付録等
p. App2-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_App2

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DEMETRIOS

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p. App3-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_App3

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MARITIME ACE

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p. App4-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_App4

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裏表紙

原稿種別: 表紙
p. Cover3-
発行日: 1972/03/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.143.0_Cover3

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