Характер силової взаємодії ідеальної рідини з вільною поверхнею в резервуарі у формі еліпсоїда обертання
Theproblemofforcednonlinearcombinedmotionofthereservoirofellipsoidalrevolutionandavolumeofidealliquidwithafreesurfaceisunderconsideration. Mathematical model of the problem is constructed based on the Hamilton–Ostrogradsky variational principle with using approaches of nonlinear mechanics and the Ka...
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| Date: | 2023 |
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| Keywords: | keywords |
| Main Authors: | , , |
| Format: | Article |
| Language: | Ukrainian |
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Інститут прикладних проблем механіки і математики ім. Я. С. Підстригача НАН України
2023
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| Subjects: | |
| Online Access: | https://www.fmmit.lviv.ua/index.php/fmmit/article/view/334 |
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| Journal Title: | Physico-mathematical modeling and informational technologies |
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Physico-mathematical modeling and informational technologies| Summary: | Theproblemofforcednonlinearcombinedmotionofthereservoirofellipsoidalrevolutionandavolumeofidealliquidwithafreesurfaceisunderconsideration. Mathematical model of the problem is constructed based on the Hamilton–Ostrogradsky variational principle with using approaches of nonlinear mechanics and the Kantorovich method. Finally, this enables the construction of nonlinear dynamic model of the system in the form of a system of ordinary differential equations relative to amplitudes of excitations of normal modes of oscillation of a liquid and parameters of translational motion of the reservoir. For different disturbance frequencies of the system motion in a vicinity of the first resonance we determined characteristics of the force interaction of a liquid with the reservoir depending on inclination of reservoir walls and degrees of filling the reservoir by a liquid. It was ascertained that to certain extent dependencies of variation of force characteristics coincide with variations of elevations of a liquid free surface |
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| DOI: | 10.15407/fmmit2023.38.011 |