FIELD: ice-breaking jobs. SUBSTANCE: during motion of hovercraft, resonance flexural gravitational waves are excited in ice. Additional periodic vertical load is created on ice by rest of propellers during motion of vessel due to periodic trimming of vessel by bow at frequency of resonance flexural gravitational waves. EFFECT: enhanced efficiency of ice cover breaking. 1 dwg
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METHOD OF BREAKING ICE COVER | 2000 |
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Authors
Dates
2002-09-10—Published
2000-08-22—Filed