関西造船協会誌

表紙

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p. Cover1-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_Cover1

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目次

原稿種別: 表紙
p. Cover2-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_Cover2

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[OTHERS]

原稿種別: 付録等
p. App1-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_App1

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コンテナ船の特性について

中村貴憲

原稿種別: 本文
p. 1-11
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_1

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This paper describes the summary of the study on the character of container ships from the viewpoint of economy and structural strength based on the actual data of container ships that were taken through the course of the progress of ships. (These data were produced mainly by Mitsubishi Kobe Shipyard with which the author was engaged till recently.) The development of container ships can be observed on two causes; "External factor" and "Internal factor". "High speed" and "Large size". These can be regarded as the natural characteristics of container ships, which conventional cargo liners could not satisfy. Such demand of economics should be called "External factor of development". Another cause called "Internal factor" means "container loading on deck" and "wide and long hatches". These were attained by container ships. It was verified that expected effects on carrying capacity were proven by these characters, by application of various engineering parameters and calculation of economy of ships operation. Existence of these characters was also proven by principal component analysis. Furthermore, container ships have the character on structural design that their principal dimensions are determined in accordance with number of containers stored in holds. The way to future progress of container ships should be considered to utilize further these characters. And, development of total hull girder system in the field of structural design and so called flexible bossings for good performance in the field of resistance and propulsion should be expected. For guidance the word "container ships" appears in this paper is understood to be "lift on lift off type".

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フィンスタビライザー及び舵の横揺れ軽減効果について

高石敬史, 平野雅祥, 猿田俊彦, 高品純志, 中嶋利夫

原稿種別: 本文
p. 13-21
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_13

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It is a well-known fact for a fine vessel such as a container carrier that a problem often arises for her rolling motion when she advances in quartering sea with high speed. In order to overcome this problem for rolling motion, many fine and high speed vessels recently adopt fin stabilizer system as a roll reduction device. The authors recently had a chance to investigate sea-keeping quality of a roll on/roll off vessel. In connection with this investigation, an attempt to study the effect of fin stabilizer to rolling motion was made. Model experiments to control rolling motion by fin stabillizer were carried out both in regular and irregular waves for various kinds of combination of ship advance speed and wave condition, and similar experiments to control rolling motion by rudder were carried out in addition. Theoretical approach with so-called strip method was also made by considering forces of fins or rudders to roll equation. In this report the results of both experimental and theoretical study for the effect of fin stabilizer or rudder to rolling motion are described. The results obtained in this study are summarized as follows. 1) The effect of fin stabilizer to roll reduction is assured to be remarkably large both in regular and irregular waves. 2) For fin stabilizer control system, both proportional and rate control are very effective. But the rate control is considered to be normally the best choice, because the roll reduction by rate control may generally be larger than that by proportional control, and because proportional control causes the natural period of rolling shorter, which is not desirable. 3) The computed results by the method proposed here are in a good agreement with the experimental results. Therefore the calculation method described in this report would be useful for estimation of the effect of fin stabilizer. 4) The use of rudder to roll reduction are found to be effective, but at the same time large yawing motion caused by rudder are found in our experiments. It seem that there exist some problems to be solved in the roll reduction by rudder.

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回頭自由な連結部を有するプッシャー・バージの操縦運動について

松本憲洋, 末光啓二, 池松裕雄

原稿種別: 本文
p. 23-31
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_23

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Connecting devices of pusher barge systems are classified into two types. One is perfectly rigid type for relative motions between a barge and a pusher, and the other is partially free type. The connecting device of this paper is a latter type, and being free for pitching, heaving, rolling and yawing. So, the peculiar control method is needed, by which the pusher barge system is manoeuvred for an optional direction, on the other hand, growth of the cross angle between pusher's and barge's center lines must be restrained. Free running tests were held to get turning characteristics and frequency response characteristics which are necessary to design the peculiar controller. Then it has been proved that the pusher barge system of this type can be controlled, but under way of turning motion, yaw rate of the barge grow rapidly with some rudder angle. In order to make the strange phenomenon clear, hydrodynamic forces and moments of a pusher and a barge were measured at the circulating water channel, and with the results, the motions of this system were simulated. Consequently, it has been made clear that the cause of the phenomenon is the nonlinear force and moment which appears over some drift angle at the point of skegs.

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横揺れ時の船体近傍の流場について

池田良穂, 藤原利弘, 姫野洋司, 田中紀男

原稿種別: 本文
p. 33-45
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_33

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The unsteady flow velocity near the hull of two dimensional cylinders in roll motion is measured using a hot wire anemometer. The measured values are found to be in good agreement with the theoretical ones which are expressed as a composite form of the solutions of the inner viscous flow and the outer potential flow. And the comparison between the theoretical skin friction and the experimental one deduced from the measured velocity gradient also shows an agreement in case of the cylinder of a midship section. Applying the theory to the ordinary three dimensional ship form, the frictional damping is evaluated, the value of which is almost the same to that of Kato's formula. In addition, from the measurements of the velocity profile for cylinders with small bilge radius, it is found that the size of the separation bubble is unexpectedly small but that the velocity just outside of the bubble is considerably large. The eddy making component of the roll damping obtained from the measured velocity is in approximete agreement with the experimental ones.

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動揺問題における相反定理とエネルギー定理

一色浩

原稿種別: 本文
p. 47-55
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_47

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There exists various mechanical relations associated with motions of a floating body in waves, and these relations have great value, because they help us to understand water wave phenomena. In this paper, reciprocity and energy relations between diffraction and radiation of a wave by a floating body are discussed from a new and systematic point of view. As an example, there exists the Haskind theorem, which relates the amplitude of the wave excitation force to that of the radiated wave (&roarr;eq. (14)). When the body is freely floating in a wave, the similar theorem can be derived by considering the equation of the motion of the body as well as the equation of the fluid motion. In this case, the amplitude of the displacement of the body is proportional to that of the radiated wave (&roarr;eq. (19)). The external damping does not affect the reciprocity relations, but energy relations for freely floating body must include a term, which represents the energy dissipation due to the external damping. The further results such as the Bessho theorem between diffraction and radiation potentials will be presented in near future.

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船型試験水槽におけるLaboratory Automationについて

松本憲洋, 山本修, 小段範久, 松浦孝, 神宮紀夫

原稿種別: 本文
p. 57-70
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_57

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The ship model basin of NKK was completed in November 1977. It's principal dimension is 240m×l8m×8m. The main and auxiliary carriages are installed on the tank. The former moves longitudinally and the Y-Z carriage suspended from the latter moves transversely and rotates about the vertical axis. The laboratory automation was developed for this basin, its application brought about the following effects: (1) Improve a degree of accuracy for repeating tests. (2) Increase an efficiency of test process due to rapid judgement. (3) Enlarge a possibility of processing for a great number of data. (4) Decrease a number of operators for testing. (5) Simplify the use of data base of test results for ship designing application. In this report, problems about the application of laboratory automation technique and elements of the testing system, i.e., the software and the hardware, are mentioned. Finally, several examples of the test results are also shown.

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推力減少率について : 荷重度変更法による考察

足達宏之, 菅井信夫

原稿種別: 本文
p. 71-80
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_71

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For many years much efforts have been devoted to the theoretical prediction of the self-propulsion factors such as thrust deduction and wake and so forth. And the more sophisticated the propeller model is, the more accurately the prediction becomes for the thrust deduction. However only a little attempts have been done for comparing the theoretical prediction with the experiments based on changing the load condition amply. Such experiments are important because theories are described by the load condition which is one of the measure of propeller in operation. In this paper such comparison is made for four models, two full ships and two liners, in order to check the theoretical prediction qualitatively in which propeller is expressed by a distribution of semi-infinite tube of ring vortex. And, moreover, the wave making due to propeller also is taken into account.

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肥大船まわりに発生する剥離渦に関する研究

呉清達, 田中一朗, 馬場哲治, 林明泉

原稿種別: 本文
p. 81-88
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_81

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There exist the bow and stern bilge vortices as well as the counter-rotating stern vortices around the full ship, which are all closely connected with resistance and propulsion of the ship. In this paper numerical calculations of the motion of the bow bilge vortex and the circulations of the bow and stern bilge vortices are carried out. The locus of the vortex center is calculated by applying the two-dimensional line vortex approximation and the conformal mapping method. The circulations of vortices are obtained by integrating the pressure differences at the both ends of the boundary layer involved into the separation vortices. The calculated values agree with the measured values with acceptable accuracy.

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目次

原稿種別: 目次
p. 89-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_89

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開会のあいさつ (最近の省エネルギー船に関する講演会)

高幣哲夫

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p. 90-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_90

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1. ツインバンクエンジンを中心とした日立造船式低燃費船システム (最近の省エネルギー船に関する講演会)

冨田幸雄

原稿種別: 本文
p. 91-101
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_91

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2. 固定ピッチプロペラ軸発電装置(FPP-SGS)による省エネルギーについて (最近の省エネルギー船に関する講演会)

西山準一, 小寺博人, 岸本多久雄, 辻正成

原稿種別: 本文
p. 103-110
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_103

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3. 69,500 DWTディーゼルタンカーの省エネルギー対策について (最近の省エネルギー船に関する講演会)

玉木一三

原稿種別: 本文
p. 111-113
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_111

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4. ディーゼル船における省エネルギーシステムの検討と実例 (最近の省エネルギー船に関する講演会)

星野敏, 宮本和千代

原稿種別: 本文
p. 115-120
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_115

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5. 川崎省エネルギー形推進プラント(KSE)搭載第一船の就航実績について (最近の省エネルギー船に関する講演会)

伊藤栄治

原稿種別: 本文
p. 121-128
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_121

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改造自動車運搬船"BI JIN"(美神)

佐野安船渠株式会社

原稿種別: 本文
p. 129-133
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_129

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会報

原稿種別: 付録等
p. 135-137
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_135

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[OTHERS]

原稿種別: 付録等
p. App2-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_App2

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JOHN BAKKE

原稿種別: 付録等
p. App3-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_App3

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STRATHFIFE

原稿種別: 付録等
p. App4-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_App4

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SLURRY EXPRESS

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p. App5-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_App5

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PACIFIC CONSTRUCTOR

原稿種別: 付録等
p. App6-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_App6

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裏表紙

原稿種別: 表紙
p. Cover3-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_Cover3

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CONTENTS

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p. Cover4-
発行日: 1978/12/30
公開日: 2018/03/30

DOIhttps://doi.org/10.14856/kansaiks.171.0_Cover4

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