Abstract: It is possible for a twin-screw ship that one screw failure occurs during navigation, and the maneuverability
in this case should be noticed by ship designers and operators. It is of great significance to evaluate
the related risk. Firstly, a mathematical model for the twin-screw ship maneuvering motion with one failed screw
is developed based on the maneuvering model group (MMG) equations, and verified by the model test results.
Secondly, the maneuvering motions of a twin-screw liquefied natural gas (LNG) ship with one free rotating failure
screw or with one locked failure screw are simulated and compared by using the mathematical model. It is shown
that the numerical modeling results are in agreement with the model test results. Compared with those of normal
navigation, the port turning ability of the ship with one failed port screw is better, but the starboard turning
ability and yaw checking ability become worse. The maneuverability of the ship with locked failure screw is better
than that with free failure screw, although the ship speed drops obviously.
LIU Xiaojian* (刘小健), FAN Sheming (范佘民)
. Investigation on Maneuverability of a Twin-Screw Ship Driven by One Screw[J]. Journal of Shanghai Jiaotong University(Science), 2017
, 22(4)
: 434
-439
.
DOI: 10.1007/s12204-017-1857-x
[1] VAN ZWIETEN J H, DRISCOLL F R, ALSENAS GM. Response characteristics and maneuverability of asmall twin screw displacement hull vessel in seas [J].Ships and Offshore Structures, 2008, 3(1): 13-40.
[2] ABRAMOWICZ-GERIGK T. Experimental study onthe hydrodynamic forces induced by a twin-propellerferry during berthing [J]. Ocean Engineering, 2008,35(3): 323-332.
[3] KIM Y G, KIM S Y, KIM H T, et al. Prediction of themaneuverability of a large container ship with twinscrews and twin rudders [J]. Journal Maritime ScienceTechnology, 2007, 12(2): 130-138.
[4] DU L H. A study on the maneuverability of twin screwand twin rudder vessel [D]. Dalian: Navigation College,Dalian Maritime University, 2005 (in Chinese).
[5] WEN H, LIU W, YING R R. The resistance calculationon twin-screw ship driven by one screw[C]//Conference of Marine Ship Safety Theory andPractice. Beijing: China Institute of Navigation, 2008:169-173 (in Chinese).
[6] JIA X L, YANG Y S. Ship motion mathematicalmotion-mechanism modeling and identification modeling[M]. Dalian: Dalian Maritime University Press,2000 (in Chinese).
[7] YASUKAWA H, YOSHIMURA Y. Introduction ofMMG standard method for ship maneuvering predictions[J]. Journal of Marine Science and Technology,2015, 20(1): 37-52.
[8] HUANG G L. The report on LNG ship planar motionmechanism captive model tests [R]. Shanghai: ShanghaiJiao Tong University, 2010 (in Chinese).
[9] HUANG G L, LIU T W. The report on LNG shipfree model tests [R]. Shanghai: Shanghai Jiao TongUniversity, 2010 (in Chinese).
