CALCULATION OF THE DERIVATIVES ON SHIP MANEUVERING IN NARROW WATERWAYS BY RECTANGULAR PLATE

The manoeuvrability of ships in restricted water, particularly in narrow waterways, has been receiving a great deal of attention in recent years because of the ever-increasing size of ships such as tankers. This paper deals with the effect of fininte water channel width on ship manoeuvrability and is an expansion of the author's previous paper on shallow water effects on ship manoeuvrability. It is calculated that the derivatives of the force acting on a rectangular plate which is to be combined motion in forced yawing technique in narrow, shallow waterways and in open, shallow waterways. It is from these results of calculation that the effect of finite water channel width on ship manoeuvrability is presumed. According to the results, it can be said that the ratio of derivatives in narrow waterways is relatively small compared to the shallow water effects. And the effect of finite water channel width does not affect in W/L is greater than or equal to 1.0.

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  • Corporate Authors:

    Society of Naval Architects of Japan

    15-16, Toranomon, 1-chome, Minato-ku
    Tokyo,   Japan 
  • Authors:
    • Kijima, K
  • Publication Date: 1972

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  • Accession Number: 00323636
  • Record Type: Publication
  • Source Agency: Stevens Institute of Technology
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM