The time‐domain representation of the seakeeping model is very useful for accurate prediction of motions and sealoads of floating structures offshore. An alternative to the seakeeping formalism is to use maneuvering theory to describe the motions of marine craft in 3 DOFs (surge, sway and yaw). Hydrodynamic programs compute mass, inertia, potential damping and restoring forces while a more detailed treatment of viscous dissipative forces are found in the extensive literature on hydrodynamics. Hydrodynamic potential theory programs can be used to compute the added mass and damping matrices by integrating the pressure of the fluid over the wetted surface of the hull. Hydrodynamic damping for marine craft is mainly caused by: potential damping, skin friction, wave drift damping, damping due to vortex shedding and lifting forces. The hydrodynamic coefficients can be experimentally determined by using a planarmotion‐mechanism system, which is a device for experimentally determining the hydrodynamic derivatives required in the equations of motion.


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    Title :

    Maneuvering Models


    Contributors:


    Publication date :

    2021-06-01


    Size :

    47 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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