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О связанных гармонических колебаниях жидкости и свободно плавающего тела

О связанных гармонических колебаниях жидкости и свободно плавающего тела

Abstract

Time-harmonic motion of a mechanical system consisting of a water layer and a freely floating body (either surface-piercing or totally submerged) is studied. It is proved that the total energy of the water motion is finite and the equipartition of the energy of the whole system is established. Under certain restrictions on the geometry of the body, the problem is proved to have only a trivial solution for sufficiently large values of the frequency. The lower limit of the uniqueness frequencies are estimated.

Изучается гармоническое по времени движение механической системы, состоящей из слоя жидкости и свободно плавающего тела, погруженного частично или полностью. Доказана конечность энергии рассматриваемой системы и установлено равенство кинетической и потенциальной компонент энергии. При некоторых ограничениях на геометрию тела доказано, что спектральная задача имеет только тривиальное решение, если частота гармонических колебаний достаточно велика. Получена оценка нижней границы интервала единственности.

Keywords

ГАРМОНИЧЕСКИЕ ВОЛНОВЫЕ ДВИЖЕНИЯ, СВОБОДНО ПЛАВАЮЩЕЕ ТЕЛО, СПЕКТРАЛЬНАЯ ЗАДАЧА, РАСПРЕДЕЛЕНИЕ ЭНЕРГИИ, ЕДИНСТВЕННОСТЬ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze