6D buoys: Applied loads

You can apply to the buoy external global loads, which are given by their components of applied force and applied moment, with respect to global axes. These components can be constant, vary with simulation time or be given by an external function. If the buoy rotates then the loads (which are with respect to global axes) do not rotate with it.

You can also apply external local loads that do rotate with the buoy. These are specified by the components of applied force and applied moment with respect to buoy axes. Again, these components may be constant, vary with simulation time or be given by an external function. If the buoy rotates then these loads do rotate with it, making them suitable for modelling thrusters, for example.

In both cases the point of application of the load is specified by giving its $(x,y,z)$ coordinates relative to the buoy origin and with respect to buoy axes.