In order to assess the influence of ship-bank interaction on ship manoeuvring motion, planar motion
mechanism (PMM) tests on a scale model of the KRISO very large crude carrier (KVLCC2) are conducted
in different water depths in circulating water channel (CWC). The asymmetric hydrodynamic derivatives are
defined to characterize the bank effect, and they are measured through the straight towing test with varying
lateral displacements. The linear and nonlinear hydrodynamic derivatives are determined from the test data of
the Fourier integral and mathematical regression model. The rudder and heading angles required at equilibrium
conditions in different ship-bank distances are calculated by the manoeuvring model. The directional stability
with varying ship-bank distances is studied in terms of eigenvalue analysis. Analysis based on the test results
shows that the KVLCC2 model ship appears inherently unstable for keeping course in deep and shallow water
conditions. When the ship-bank distance decreases, the increasing ship-bank interaction can dramatically affect
some parameters of the criteria for course keeping.
LIU Han (刘晗), MA Ning (马宁), GU Xiechong (顾解忡)
. Experimental Study on Ship-Bank Interaction of Very Large Crude Carrier in Shallow Water[J]. Journal of Shanghai Jiaotong University(Science), 2018
, 23(6)
: 730
-739
.
DOI: 10.1007/s12204-018-1999-5
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