Abstract
The dynamics of the rotational motion of a satellite moving in the central Newtonian force field in a circular orbit under the influence of gravitational and active damping torques is investigated with the help of computer algebra methods. The properties of a nonlinear algebraic system that determines equilibrium orientations of a satellite under the action of gravitational and active damping torques were studied. An algorithm for the construction of a Gröbner basis is proposed for determining the equilibrium orientations of a satellite with given central moments of inertia and given damping torques. The conditions of the equilibria’s existence were obtained by the analysis of real roots of algebraic equations from the constructed Gröbner basis. The domains with an equal number of equilibria were specified by using algebraic methods for the construction of discriminant hypersurfaces. The conditions of asymptotic stability of the satellite’s equilibria were determined as a result of the analysis of linearized equations of motion using Routh–Hurwitz criterion.
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Acknowledgements
The authors thank the reviewers for very useful remarks and suggestions and Professor V. Gerdt for the advice on the effectiveness of methods and algorithms of Gröbner basis construction.
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Gutnik, S.A., Sarychev, V.A. (2017). A Symbolic Study of the Satellite Dynamics Subject to Damping Torques. In: Gerdt, V., Koepf, W., Seiler, W., Vorozhtsov, E. (eds) Computer Algebra in Scientific Computing. CASC 2017. Lecture Notes in Computer Science(), vol 10490. Springer, Cham. https://doi.org/10.1007/978-3-319-66320-3_13
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