Sensitivity Analysis of the Hydrodynamic Coefficients in 4 Degrees of Freedom Ship Manoeuvring Mathematical Model

doi:10.1007/s12204-015-1665-0

Abstract

Abstract: The S-type test is simulated based on a ship manoeuvring mathematical model of 4 degrees of freedom (4-DOF); simultaneously, sensitivity analysis of the hydrodynamic coefficients in the mathematical model is implemented by using an indirect method. The mathematical model is simplified by omitting the coefficients of smaller sensitivity according to the results of sensitivity analysis. The 10?/10? zigzag test and 35? turning circle manoeuvre are simulated with the original and the simplified mathematical models. The comparison of the simulation results shows the effectiveness of the sensitivity analysis and the validity of the simplified model.

Key words: ship manoeuvring| hydrodynamic coefficients| sensitivity analysis| indirect method| 4 degrees of freedom (4-DOF)

摘要： The S-type test is simulated based on a ship manoeuvring mathematical model of 4 degrees of freedom (4-DOF); simultaneously, sensitivity analysis of the hydrodynamic coefficients in the mathematical model is implemented by using an indirect method. The mathematical model is simplified by omitting the coefficients of smaller sensitivity according to the results of sensitivity analysis. The 10?/10? zigzag test and 35? turning circle manoeuvre are simulated with the original and the simplified mathematical models. The comparison of the simulation results shows the effectiveness of the sensitivity analysis and the validity of the simplified model.

关键词: ship manoeuvring| hydrodynamic coefficients| sensitivity analysis| indirect method| 4 degrees of freedom (4-DOF)

CLC Number:

U 661.33

WANG Xue-gang1 (王雪刚), ZOU Zao-jian1,2*(邹早建), YANG Zhao-long1 (杨昭龙), XU Feng3 (徐锋). Sensitivity Analysis of the Hydrodynamic Coefficients in 4 Degrees of Freedom Ship Manoeuvring Mathematical Model[J]. Journal of shanghai Jiaotong University (Science), 2015, 20(5): 584-590.

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