Estimation-Before-Modeling (EBM) technique (or the two-step method) is a system identification method that estimates parameters in a dynamic model. Given sea trial data, the extended Kalman filter and modified Bryson-Frazier smoother can be used to estimate motion variables, hydrodynamic force, and the speed and the direction of current. And using these estimated data, we can use the ridge regression method to estimate the hydrodynamic coefficients in a model. An identifiable state space model is constructed in case that current effect is included and the maneuvering characteristics of a ship are analyzed by correlation analysis. To better identify hydrodynamic coefficients, we suggest the sub-optimal input scenario that considers the D-optimal criterion. Finally, the algorithm is confirmed against real sea trial data of 113K tanker.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Identification of hydrodynamic coefficients in ship maneuvering equations of motion by Estimation-Before-Modeling technique


    Beteiligte:
    Yoon, Hyeon-Kyu (Autor:in) / Rhee, Key-Pyo (Autor:in)

    Erschienen in:

    Ocean Engineering ; 30 , 18 ; 2379-2404


    Erscheinungsdatum :

    2003


    Format / Umfang :

    26 Seiten, 15 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    System Identification Determination of Ship Maneuvering Hydrodynamic Coefficients Based on Free-running Model Test Results

    Sajad Hajizadeh / Mohammad saeid seif / hamid Mehdigholi | DOAJ | 2015

    Freier Zugriff

    Numerical Estimation of Hull Hydrodynamic Derivatives in Ship Maneuvering Prediction

    Kołodziej Radosław / Hoffmann Paweł | DOAJ | 2021

    Freier Zugriff

    Numerical Estimation of Hull Hydrodynamic Derivatives in Ship Maneuvering Prediction

    Kołodziej, Radosław / Hoffmann, Paweł | Online Contents | 2021


    Calculation of Hydrodynamic Forces Acting on a Ship in Maneuvering Motion

    Nonaka, K. / Miyazaki, H. / Nimura, T. et al. | British Library Conference Proceedings | 2000