FIELD: ice-breaking jobs. SUBSTANCE: hovercraft 2 is set in motion at excitation of flexural gravitational waves in ice at resonance speed which is determined by maximum increment (as compared with motion over hard horizontal surface) increment of intensity of electric current excited by piezoelectric elements fitted in thrust bearing of propeller 3. EFFECT: enhanced efficiency of determination of speed at which ice broken intensively. 2 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD OF BREAKING ICE COVER | 2001 |
|
RU2188902C1 |
METHOD OF BREAKING ICE COVER | 2002 |
|
RU2229414C2 |
METHOD OF BREAKING ICE COVER | 2000 |
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RU2188894C2 |
METHOD OF BREAKING ICE COVER | 2000 |
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RU2188896C2 |
METHOD OF BREAKING ICE COVER | 2000 |
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RU2199467C2 |
METHOD OF BREAKING ICE COVER | 1998 |
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RU2137666C1 |
METHOD OF BREAKING ICE COVER | 2001 |
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RU2217347C2 |
METHOD OF BREAKING ICE COVER | 2001 |
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Authors
Dates
2002-09-10—Published
2001-02-13—Filed