| 摘要 |
FIELD: transport.SUBSTANCE: proposed platform 10 has, in fact, cylindrical or polyhedral hull surrounding central moonpool 13 and compartments for water ballast system and for oil and/or liquefied gas storage. External sides 12 of said hull have flat surface and sharp angles to brake pack ices and to move ice-hummocks from platform. Controlled water ballast system causes hull heaving, rolling, pitching and surging for dynamic positioning and hull maneuvering for ice braking and displacing. Moonpool inner part features dual converging taper shape relative to vertical axis.EFFECT: increased natural vibrations in rolling and heaving, decreased dynamic reinforcement and resonance oscillations, better maneuverability.31 cl, 19 dwg |
