In this paper, we describe the details of our numerical model for simulating ship solidbody motion in a given environment. In this model, the fully nonlinear dynamical equations governing the time-varying solid-body ship motion under the forces arising from ship wave interactions are solved with given initial conditions. The net force and moment (torque) on the ship body are directly calculated via integration of the hydrodynamic pressure over the wetted surface and the buoyancy effect from the underwater volume of the actual ship hull with a hybrid finite-difference/finite-element method. Neither empirical nor free parametrization is introduced in this model, i.e. no a priori experimental data are needed for modelling. This model is benchmarked with many experiments of various ship hulls for heave, roll and pitch motion. In addition to the benchmark cases, numerical experiments are also carried out for strongly nonlinear ship motion with a fixed heading. These new cases demonstrate clearly the importance of nonlinearities in ship motion modelling.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    A Fully Nonlinear, Dynamically Consistent Numerical Model for Solid-Body Ship Motion. I. Ship Motion with Fixed Heading


    Contributors:


    Publication date :

    2011-04-08


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English






    Numerical simulation of ship maneuvring motion

    Sutulo, V. / Polukin, K.V. | Tema Archive | 1988


    Ship Motion Control

    Roberts, G. N. | British Library Conference Proceedings | 1992


    Ship Motion Performance

    Perez, Tristan | Springer Verlag | 2005