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Л.А. Бабкина, Д.В. Сорокин
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Инженерный журнал: наука и инновации
# 4·2017
Parametric analysis of the spacecraft parabolic
antenna with a multivariate reinforcement scheme
© L.A. Babkina, D.V. Sorokin
Siberian State Aerospace University named after academician M.F. Reshetnev,
Krasnoyarsk, 660037, Russia
The problem of parametric geometric modeling is solved. The modal analysis of the
spacecraft parabolic antenna with a multivariate reinforcement scheme consisting of the
system of radial and annular ribs is made.
The modal analysis used for determining the
fundamental frequency of antenna oscillation as a criterion of structural rigidity was
performed in this article by the finite element method in the SolidWorks Simulation pack-
age. Simulation of the antenna is carried out by shell finite elements with a parabolic
approximation of the displacement field.
The parametric model of the antenna takes into
account the change in the reflector thickness, the number and thickness of the rib cross
sections, as well as the coordinates of the points of attachment of the primary structure to
the spacecraft.
The results of calculations of the antenna oscillation fundamental fre-
quency at different variants of a design parameter combination are presented. The design
solutions providing the required values of structure rigidity are revealed.
Keywords:
geometric modeling, parametric modeling, modal analysis, finite element method
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Babkina L.A.,
Cand. Sc. (Eng.), Associate Professor, Department of Computer Simula-
tion, Siberian State Aerospace University named after academician M.F. Reshetnev.
Author of 79 research and educational publications. Research interests: electrophysical
and electrochemical machining methods, geometric and finite element modeling.
e-mail:
L_babkina@mail.ru