JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN
Online ISSN : 1884-4758
Print ISSN : 0388-3051
ISSN-L : 0388-3051
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Volume 30, Issue 1
Displaying 1-8 of 8 articles from this issue
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1995 Volume 30 Issue 1 Pages 9-16
    Published: January 01, 1995
    Released on J-STAGE: May 31, 2010
    DOIhttps://doi.org/10.5988/jime1966.30.9
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1995 Volume 30 Issue 1 Pages 17-22
    Published: January 01, 1995
    Released on J-STAGE: May 31, 2010
    DOIhttps://doi.org/10.5988/jime1966.30.17
    JOURNAL FREE ACCESS
    Download PDF (752K)
  • [title in Japanese]
    [in Japanese]
    1995 Volume 30 Issue 1 Pages 23-30
    Published: January 01, 1995
    Released on J-STAGE: May 31, 2010
    DOIhttps://doi.org/10.5988/jime1966.30.23
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1995 Volume 30 Issue 1 Pages 31-35
    Published: January 01, 1995
    Released on J-STAGE: May 31, 2010
    DOIhttps://doi.org/10.5988/jime1966.30.31
    JOURNAL FREE ACCESS
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  • Simulation of Marine Diesel Engine Characteristics and Design of Adaptive Control Scheme for Electronic Governor
    Wan-Chung Lan, Takeshi Katagi, Takeshi Hashimoto
    1995 Volume 30 Issue 1 Pages 36-48
    Published: January 01, 1995
    Released on J-STAGE: May 31, 2010
    DOIhttps://doi.org/10.5988/jime1966.30.36
    JOURNAL FREE ACCESS
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    Recently electronic governors and used in place of conventional mechanical-hydraulic governors in increasing number of marine vessels. In this paper, firstly the features of these electronic governors have been reviewed, and a design of the control scheme for the electronic governors has been proposed. For that purpose firstly the dynamical characteristics of marine diesel engine have been simulated by the so called Quasi Steady State Method approach, which allows for the calculation of many of the variable in the diesel engine with a relatively simple model. A control scheme for the engine has been proposed which, by means of updating newly defined parameters withing the controller using feedback from the output, could improve the dynamic response of the diesel engine. The control scheme proposed is characterized by 4 variables, and the numerical values selected for these variables has been discussed. Finally the characteristics of the marine diesel engine system incorporating this new governor has been demonstrated by computer simulation.
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  • Analysis for Cooling Process of Arc Welding
    —Butt Joint with Square Groove—
    Toshimichi Fukuoka
    1995 Volume 30 Issue 1 Pages 49-55
    Published: January 01, 1995
    Released on J-STAGE: May 31, 2010
    DOIhttps://doi.org/10.5988/jime1966.30.49
    JOURNAL FREE ACCESS
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    It is well known that the strength of welded joint is significantly influenced by the cooling cycle of welded zone, which is dependent on welding conditions such as welding current, voltage, plate thickness, groove configurations, etc.. In the most previous papers, analytical objects are ‘bead on place' to estimate fundamental behaviors of cooling process of welded joint. In this paper, a more realistic case of welded joint is treated, and a numerical approach to analyze the cooling cycle of welded joint with square groove, which is commonly used for butt joint of thin plates, is proposed using three-dimensional finite difference method in the transient temperature field. The validity of the numerical approach is confirmed by executing shielded metal arc welding.
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  • Tank washing with detergent
    Koichi Ueda, Takahiro Majima
    1995 Volume 30 Issue 1 Pages 56-60
    Published: January 01, 1995
    Released on J-STAGE: May 31, 2010
    DOIhttps://doi.org/10.5988/jime1966.30.56
    JOURNAL FREE ACCESS
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    On the tank washing of chemical tankers, it is desired to establish the tank washing standard for the prevention of sea pollution and to minimize the necessary wash water quantity. We investigate the cleanliness of the tank wall surfaces after washing and the concentration in the effluent. Red dyed alkylbenzene is used as the test liquid. After it is adhered to the tank wall, it is washed with jet water which contains detergent. Two sections are determined to examine the cleanlines after washing on the wall surfaces. One is the ceiling near the corner that is most difficult to wash and another is ther vertical wall that is easy to wash. The washing with the detergent is compared with that with fresh water.
    In the case of washing of alkylbenzene which is insoluble in water and low in viscosity, the necessary wash water quantity is decreased by using detergent. It is estimated by the coefficients obtained by the model tank test that if the ditergent is toxic, the necessary water quantity is decreased by about 13% and if it is not toxic, it is decreased by about 31%.
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  • [title in Japanese]
    [in Japanese]
    1995 Volume 30 Issue 1 Pages 61-66
    Published: January 01, 1995
    Released on J-STAGE: May 31, 2010
    DOIhttps://doi.org/10.5988/jime1966.30.61
    JOURNAL FREE ACCESS
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