Estimation of hydrodynamic coefficients from results of real ship sea trials

• Autorzy: Kim D.

Identyfikatory

DOI

10.2478/pomr-2018-0133

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

ship manoeuvrability; system identification method; hydrodynamic coefficients; sea trials; mathematical optimization

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2018
• Tom: nr 4
• Strony: 65--72
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Kim D.

• University of Rostock, Rostock, Germany

Bibliografia

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• 4. Kim, D. W., K. Benedict, M. Paschen: Estimation of Hydrodynamic Coefficients from Sea Trials Using a System Identification Method, Journal of the Korean Society of Marine Environment & Safety, Vol. 23, No. 3 (2017), pp. 258–265.
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• 16. Tran, K. T., A. Ouahsine, F. Hissel, P. Sergent: Identification of Hydrodynamic Coefficients from Sea Trials for Ship Manoeuvring Simulation, Transport Research Arena, Paris (2014).
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• 18. Yoon, S., D. Kim, S. Kim: A Study on the Manoeuvring Hydrodynamic Derivatives Estimation Applied the Stern Shape of a Vessel, Journal of the Society of Naval Architecture of Korea, Vol. 53, No. 1 (2016), pp. 76–83.
• 19. Zhang, X., Z. Zou: Identification of Abkowitz Model for Ship Manoeuvring Motion Using Support Vector Regression, Journal of Hydrodynamics, Vol. 23, No. 3 (2011), pp. 353–360.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).