Modeling Buoy Motion at Sea

Instructions


The mass and geomtry are preset as reported in the paper

The wave frequency is preset as reported in the paper

The most one can do is turn on or off the wave.

Viscous damping is preset as reported.

Abstract

This project endeavors to model the wave induced motion on a buoy at sea. We use the Moving Frame Method (MFM) to conduct the analysis. The MFM draws upon concepts and mathematics from Lie group theory--SO(3) and SE(3)--and Cartan's notion of Moving Frames. This, together with a compact notation from geometrical physics, makes it possible to extract the equations of motion, expeditiously. This work accounts for the masses and geometry of all components and for buoyancy forces and added mass. The resulting movement will be displayed on 3D web pages using WebGL. Finally, the theoretical results will be compared with experimental data obtained from a previous project done in the wave tank at HVL.

Tord-Eskil Tørressen
Håvard Løkkebø
Thorstein R Rykkje

Time

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