Asymptotic behavior in the dynamics of a smooth body in an ideal fluid

被引：0
作者：
Evgeny V. Vetchanin
Ivan S. Mamaev
机构：
[1] Udmurt State University,
[2] Kalashnikov Izhevsk State Technical University,undefined
来源：
Acta Mechanica | 2020年 / 231卷
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摘要：
This paper addresses a conservative system describing the motion of a smooth body in an ideal fluid under the action of an external periodic torque with nonzero mean and of an external periodic force. It is shown that, in the case where the body is circular in shape, the angular velocity of the body increases indefinitely (linearly in time), and the projection of the phase trajectory onto the plane of translational velocities is attracted to a circle. Asymptotic orbital stability (or asymptotic stability with respect to part of variables) exists in the system. It is shown numerically that, in the case of an elliptic body, the projection of the phase trajectory onto the plane of translational velocities is attracted to an annular region.
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页码：4529 / 4535
页数：6
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