文章基本信息

标题：ESTIMATION OF HYDRODYNAMIC COEFFICIENTS FROM RESULTS OF REAL SHIP SEA TRIALS
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作者：Daewon Kim
期刊名称：Polish Maritime Research
电子版ISSN：2083-7429
出版年度：2018
卷号：25
期号：4
页码：65-72
DOI：10.2478/pomr-2018-0133
语种：English
出版社：Sciendo
摘要：This paper suggests an estimation method for ship’s hydrodynamic coefficients,which is based on the system identification method that calculates an optimum value in a mathematical way.For the purpose of modelling existing ships,this study collects real ship sea trial data as benchmarks.Prior to the optimization,a sensitivity analysis is carried out for easy and effective optimization.The simulation results using optimized coefficients agree well with corresponding benchmarks.Following this,with various trim and draught conditions,this study suggests new estimation formulas that concern all trim and draught conditions.Simulation results applying the estimation formulas are satisfactory in regard to a corresponding benchmark,compared to a result obtained by using an existing regression formula.
关键词：ship manoeuvrability;system identification method;hydrodynamic coefficients;sea trial;mathematical optimization