JIN Liang-an, YUAN Zhi-jiang, CHI Wei, TIAN Heng-dou, LU Yi-bin. Influence of underwater towed system on ship maneuverability[J]. Journal of Traffic and Transportation Engineering, 2013, 13(1): 47-54. doi: 10.19818/j.cnki.1671-1637.2013.01.008
Citation: JIN Liang-an, YUAN Zhi-jiang, CHI Wei, TIAN Heng-dou, LU Yi-bin. Influence of underwater towed system on ship maneuverability[J]. Journal of Traffic and Transportation Engineering, 2013, 13(1): 47-54. doi: 10.19818/j.cnki.1671-1637.2013.01.008

Influence of underwater towed system on ship maneuverability

doi: 10.19818/j.cnki.1671-1637.2013.01.008
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  • Author Bio:

    JIN Liang-an(1966-), male, professor, PhD, +86-411-85855581, jinliangan@163.com

  • Received Date: 2012-08-15
  • Publish Date: 2013-02-25
  • Towing ship, towed cable and towed vehicle were treated as an interactional whole system. Using the boundary conditions of the system, the tensions and moments of towed cable's upper end and bottom end were used into the MMG model of towing ship and the equation with six degrees of freedom for towed vehicle respectively. Coupled with the finite difference method of towed cable, a coupling motion model of the whole system was established. A numerical method was developed based on the mode[to predict the influence of underwater towed system on the maneuverability of towing ship. Numerical result indicates that the velocity of towing ship decreases by considering the coupling function of towed cable and towed vehicle in steady motion, and the variation is 3O//oo-5%. In the turning maneuver of towing ship, the velocity, turning radius and roll angle of towing ship reduce, and the variations are 2;-3;/0, 2;-4;//0 and 11%-21% respectively. The influence makes the maneuverability more normal. Moreover, it can be used as the basic theory to predict the behaviors of underwater towed system. 7 tabs, 6 figs, 15 refs.

     

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