|Table of Contents|

Influence of underwater towed system on ship maneuverability(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2013年01期
Page:
47-54
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Influence of underwater towed system on ship maneuverability
Author(s):
JIN Liang-an1;  YUAN Zhi-jiang1;  CHI Wei1;  TIAN Heng-dou2;  LU Yi-bin1
1. Department of Navigation, Dalian Naval Academy, Dalian 116018, Liaoning, China; 2. No.91439 Troops of PLA, Dalian 116025, Liaoning, China
Keywords:
ship engineering;  underwater towed system;  ship maneuverability;  coupling motion model;  numerical method
PACS:
U661.33
DOI:
-
Abstract:
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 model 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 3%-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%, 2%-4% 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.

References:

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Last Update: 2013-03-30