On the Orbital Stability of Periodic Motions of a Heavy Rigid Body in the Bobylev – Steklov Case
Received 11 December 2023; accepted 09 January 2024; published 29 March 2024
2024, Vol. 20, no. 1, pp. 127-140
Author(s): Bardin B. S.
The problem of the orbital stability of periodic motions of a heavy rigid body with a fixed
point is investigated. The periodic motions are described by a particular solution obtained by
D. N. Bobylev and V. A. Steklov and lie on the zero level set of the area integral. The problem of
nonlinear orbital stability is studied. It is shown that the domain of possible parameter values
is separated into two regions: a region of orbital stability and a region of orbital instability. At
the boundary of these regions, the orbital instability of the periodic motions takes place.
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