TITLE

Periodic motions of a nearly dynamically symmetric satellite in the neighborhood of hyperboloidal precession

AUTHOR(S)

Kholostova, O.; Churkina, T.

PUB. DATE

December 2009

SOURCE

Cosmic Research;Dec2009, Vol. 47 Issue 6, p525

SOURCE TYPE

Academic Journal

DOC. TYPE

Article

ABSTRACT

The motion of a satellite close to a dynamically symmetric solid body in a Newtonian gravitational field over a circular orbit is studied. The system of differential equations describing the body�s motion is close to a system with cyclic coordinate. New classes of periodic motions are constructed in the neighborhood of a known partial solution to an unperturbed problem, hyperboloidal precession of a dynamically symmetric satellite. In the resonance case, when the ratio of one frequency of small oscillations of a reduced system with two degrees of freedom in the neighborhood of a stable equilibrium position to the frequency of cyclic coordinate variation is close to an integer number, there exist one or three families of periodic motions that are analytic in terms of fractional powers of a small parameter. A study of stability of these motions was performed with the help of KAM (Kolmogorov-Arnold-Moser) theoty. Faling the described resonance there exists a unique family of periodic motions that is analytic in terms of integer powers of a small parameter. The check-up of stability of these motrons was carried out. We distinguished the cases of parametric resonance, resonances of the third and fourth orders, and a non-resonant case. In the resonance cases our study relies on well-known results on stability of Hamiltonian systems during resonances [1]. In the non-resonant case we use the KAM theory [2].

ACCESSION #

45528990

Tags: SPHERICAL astronomy;  DIFFERENTIAL equations;  HAMILTONIAN systems;  GRAVITATIONAL fields;  FIELD theory (Physics)

 

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