Abstract:

Within the framework of existing standards for the creation of new spacecraft, the design and development of both large and ultra-small satellites requires the solution of a wide range of problems associated with analyzing the strength of satellites at different stages of their life cycle. The main and most difficult, from the point of view of ultimate loads, is the stage of putting into orbit. At this stage, the satellite is subject to extreme accelerations, harmonic and random vibrations, shock loads. In this paper we present the strength analysis of the nanosatellite POLYITAN-2 under the action of random vibrations at the stage of launching into orbit. An effective solid-state model and a corresponding finite element model of a nanosatellite have been developed. With the use of the software complex Ansys, a computational study of the stress-strain state of the nanosatellite was carried out. The strength of the structural elements is evaluated. It is established that for the considered version of POLYITAN-2 the strength conditions are fulfilled.

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