ANALYSIS ON INFLUENCE FACTORS OF TOWING OF AIR FLOAT BUCKET FOUNDATION PLATFORM

In order to research the towing kinetic properties of a bucket foundation offshore platform, hydrodynamic software MOSES is used to simulate the towing motion of the bucket foundation platform. A towing model test is simulated by MOSES and the analysis results are in good agreement with the test results. The reliability of MOSES analysis results is verified. To minimize the influence of model size on the analysis results, a prototype model with the actual size is established using MOSES. The influence of towing points and wave conditions on the towing stability is analyzed. MOSES analysis results shows that the towing point should be set closely to the buoyant centre of the platform to reduce the overturning moment produced by towing force; the impact of wave height on towing force and vertical motion is significant; it is not safe when wave height is over 2 meters; the towing of the platform under following waves is safer than towing under head waves.