Experimental Study on Ship-Bank Interaction of Very Large Crude Carrier in Shallow Water

doi:10.1007/s12204-018-1999-5

Journal of Shanghai Jiao Tong University (Science) ›› 2018, Vol. 23 ›› Issue (6): 730-739.doi: 10.1007/s12204-018-1999-5

Experimental Study on Ship-Bank Interaction of Very Large Crude Carrier in Shallow Water

LIU Han (刘晗), MA Ning (马宁), GU Xiechong (顾解忡)

(State Key Laboratory of Ocean Engineering; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration; School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

出版日期:2018-12-01 发布日期:2018-12-07
通讯作者: MA Ning (马宁) E-mail:ningma@sjtu.edu.cn

Experimental Study on Ship-Bank Interaction of Very Large Crude Carrier in Shallow Water

LIU Han (刘晗), MA Ning (马宁), GU Xiechong (顾解忡)

(State Key Laboratory of Ocean Engineering; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration; School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

Online:2018-12-01 Published:2018-12-07
Contact: MA Ning (马宁) E-mail:ningma@sjtu.edu.cn

摘要/Abstract

摘要： 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.

关键词: ship-bank interaction , shallow water , planar motion mechanism (PMM) , asymmetric hydrodynamic derivatives

Abstract: 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.

中图分类号:

U 661.33

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 Jiao Tong University (Science), 2018, 23(6): 730-739.

参考文献 14

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Experimental Study on Ship-Bank Interaction of Very Large Crude Carrier in Shallow Water

Experimental Study on Ship-Bank Interaction of Very Large Crude Carrier in Shallow Water

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