ON THE THREE-DIMENSIONAL CORRECTION FACTORS FOR THE ADDED MASS AND THE ADDED MASS MOMENT OF INERTIA RELATED TO MANEUVERABILITY IN SHALLOW WATER

When we want to estimate the added mass and the added mass moment of inertia of a ship, the strip method which has proved to be very useful for the calculation of ship motion in waves, seems to be suitable, because it is possible to take the full form of a ship into consideration in detail. However, since the strip method is based on two-dimensional consideration of the flow field around a three-dimensional body, both the added mass and the added mass moment of inertia obtained by the strip method are always excessively large compared with their exact value. Therefore in this paper, the correction factors are introduced separately for the added mass as to the swaying motion, and for the added mass moment of inertia as to the yawing motion in an analogous way to the correction factor for the added mass of the vertical ship hull vibration. Expecially, the effect of finite water depth on these correction factors in investigated from the viewpoint of ship's manoevrability in restricted waters. As a result, it is found that the correction factors decrease with decrement of the water depth, and that the correction factor for the added mass moment of inertia is smaller than that for the added mass.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/05148499
• Corporate Authors:

  Society of Naval Architects of Japan

  23 Shiba-kotohiracho, Minato-ku
  Tokyo 135,   Japan 

  Society of Naval Architects of Japan

  15-16, Toranomon, 1-chome, Minato-ku
  Tokyo,   Japan 
• Authors:
  • Fujino, M
  • Takashina, J
  • YAMAMOTO, S
• Publication Date: 1974-6

Language

• Japanese

Media Info

• Features: References;
• Pagination: p. 121-128
• Serial:
  • Journal of the Society of Naval Architects of Japan
  • Volume: 135
  • ISSN: 0514-8499

Subject/Index Terms

• TRT Terms: Coefficients; Maneuverability; Mass; Moments of inertia; Navigation
• Old TRIS Terms: Added mass; Moment of inertia; Shallow water effects
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00071549
• Record Type: Publication
• Source Agency: Society of Naval Architects of Japan
• Files: TRIS
• Created Date: Nov 12 1974 12:00AM