関西造船協会誌

表紙

原稿種別: 表紙
p. Cover1-
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_Cover1

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目次

原稿種別: 表紙
p. Cover2-
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_Cover2

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可浸長の近似計算について

首藤保信, 石田照美

原稿種別: 本文
p. 1-4
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_1

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The theory and the method of floodable length calculation have been investigated by many people, but approximate calculation method which can be used in the stage of initial design has not been published yet. Authors herewith present a simple method which needs only one hour calculation.

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図形処理用プロセッサーKFAPF(ファップ)について

川口博, 柴村和子

原稿種別: 本文
p. 5-11
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_5

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The development of the computer system is very remarkable. With the progress of hardware such as XY-plotter, numerically controlled machine and further graphic display unit, the possibility of full automation from design to production in shipbuilding industry has become larger. The ship is constructed with curved shells and has complicated internal structures. Because of this, computerization of the production line involves more difficulties than that in other industries, and accordingly we presume the development of available software is the most important subject to realize the full automation. Under such circumstances, authors have recently completed a processor, which not only has made N/C tape for N/C machines, but also deals with design calculations oriented with the complicated figure. This paper describes the outline of the programming system with KFAPF, (Kawasaki-Figute-Analyzing-Processor with Fujitsu).

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超音波探傷法の燒嵌め検査への応用

安部敬, 森達也, 喜々津章

原稿種別: 本文
p. 12-16
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_12

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We have experienced in recent years that shrink fitted pintle sleeve in some new ships sliped off and was lost short after delivery, with undue reasons. It is the common practice today for the inspection of shrink fitted conditions to knock the outer surface of the shrink fitted materials with a hammer and judge upon the sounds heard there by a technic requiring much human skill and sometimes unreliable. To improve this practice, we studied the possibility of the application of ultrasonic inspection method, by transmitting the ultrasonic waves from the outer surface and checking the strength of the echoes obtained from the boundary between two materials shrink fitted together.

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A Consideration of Model-Ship Correlation on Wake Fraction : Disposition of Wake Data-2nd Report)

Shoichi SUDO, Takaaki TANIMOTO

原稿種別: Article
p. 17-23
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_17

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In the first report, wake data of large tankers in the fu11 load condition were put in order by a statistical method of analysis. Wake data in the ba11ast condition, however, were not mentioned in the first report as excessive scatter of the data appeared to need further studies. This paper deals with further analyses of whole wake data of the other less load conditions as well as the full load condition. The analyses are carried out in the same way as that of the first report. Five basic parameters representing the characteristics of the ship form and two additional parameters representing the features of the load condition are used as the basis of the analyses. The five basic parameters are the same as those finally adopted in the first report; their values in the full load conditions are used regardless of the load condition. The two additional parameters are &xdtri;'/&xdtri; and d_<A'>/d, where &xdtri; and d_<A'> are the displacement and draught at A. P. of a given load condition respectively. Final results are as follows. [numerical formula] [numerical formula] In the case of the fu11 load condition, the last two factors in each formula are equal to 1.0, and the formulae become just like those given for the fu11 load condition in the first report; afterwards, they have been improved in form. Consequently, the formulae can be genera11y app1ied to wake data of any load condition. For practical purposes, an approximate formula of the model-ship correlation factor was deve1oped in the first report; that is, [numerical formula] It has been confirmed in this report that this formula can be used as it is, though the basic formulae expressing (1-w) were modified.

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剪断を受ける縁付有孔帯板の応力集中

岡村与一郎, 岡田博雄, 福本佳夫

原稿種別: 本文
p. 24-32
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_24

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A stress analysis of a flanged strip containing a hole under shear is studied. The calculation is executed for three typical cases and the results of numerical calculation are presented. Moreover, the theory is well correlated with the experiments. A study on the stress around a hole in the beam subjected to combined loads is also made.

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長大倉口船の捩り-曲げ連成固有振動の研究(第1報) : 薄肉開断面棒の捩り振動

松浦義一, 川上肇

原稿種別: 本文
p. 33-42
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_33

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Torsional vibration of ships with large hatch openings, such as container ships, must be dealt with by bending-torsion theory including torsional rigidity GJ and warping rigidity EГ, because they usua11y behave as bars with open cross section. This paper presents the results of thoeretical and experimental study on the torsional vibration of the uniform free-free bar of open cross section with two axes of symmetry ,the purpose of which is to find the effect of torsional r1gidity and warping rigidity and also the effect of shear on the torsional vibration of the bar mentioned above. The theoretical results are compared with the experimental results, and the following conclusions are obtained; (1) In order to calculate natural frequency of torsional vibration of a bar exactly, it is necessary to take into account the torsional rigidity GJ, the warping rigidity EГ and the effect of shear. (2) In the higher mode of vibration, the effect of torsional rigidity on the natural freqency can be genera11y neglected. If λ<1, the effect of torsional rigidity might be neglected for a11 modes except one-node mode. (3) In the higher mode, however, the effect of shear on the natural frequency increases. This is exactly the same as the effct of shear on the flexural vibration of beams. (4) One-node vibration is governed mainly by the torsional rigidity GJ, while the vibrations above two-node are governed mainly by the warping rigidity EГ. In the case of one-node vibration, the effect of shear can be neglected.

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長大倉口船の捩り : 曲げ連成固有振動の研究(第2報) : 薄肉溝型断面棒の捩り : 曲げ連成振動

松浦義一, 川上肇, 小野木宏

原稿種別: 本文
p. 43-56
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_43

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Torsional and horizonta1 vibrations of ships usua11y occur together as coupled vibrations because of the asymmetry about any horizontal axis of the cross section of a ship. Especia11y in the case of ships with large hatch openings, such as container ships, torsional and horizontal vibrations must be tightly coupled, because the shear centre is located far apart from the centre of gravity of the cross section. In order to clarify the main feature of the coupled torsional and horizontal vibrations of those ships, theoretical study was made on the coupled torsional and flexural vibrations of a uniform bar of open cross section with only one axis of symmetry, taking into account the effects of torsional rigidity and shear deflection of the members of the bar in the same manner as was described in the first report. The usefulness of the results of theoretical study was confirmed by experiments in which vibration tests were conducted on nine models made of steel and aluminium. The conclusions obtaind are summarized as follows: (1) Due to the coupling between torsional and flexural vibrations, a bar of open cross section has two types of norma1 modes of vibration which are distinguished by the terms "vibration of type 1" and "vibration of type 2". (2) When the bar vibrates in a steady state, the apparent centre of rotation of the cross section is a fixed point which is inherent for each type of vibration mentioned above. (3) The effect of torsional rigidity and the effect of shear on the natural frequencies of the bar can be approximately treated in the same manner as for the case of simple torsional vibration described in the first report. (4) The torsional rigidity and the shear deflection of the members of the bar have little effect on the normal mode patterns of vibration of the bar in the wide range of the factors λ and β.

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りおぐらんで丸 : 準高速貨物船

大阪商船三井船舶株式会社工務部

原稿種別: 本文
p. 57-60
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_57

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王子丸 : チップ運搬船

舞鶴重工業株式会社・造船部

原稿種別: 本文
p. 61-63
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_61

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会報

原稿種別: 付録等
p. 64-70
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_64

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GOLAR ARROW

原稿種別: 付録等
p. App1-
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_App1

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王子丸

原稿種別: 付録等
p. App2-
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_App2

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紀及川丸

原稿種別: 付録等
p. App3-
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_App3

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OLTENIA

原稿種別: 付録等
p. App4-
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_App4

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裏表紙

原稿種別: 表紙
p. Cover3-
発行日: 1968/03/30
公開日: 2018/02/25

DOIhttps://doi.org/10.14856/kansaiks.127.0_Cover3

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