Simulation analysis platform for thermally-induced micro-vibration response of satellite-borne flexible accessory

Abstract

The invention relates to a simulation analysis platform for thermally-induced micro-vibration response of a satellite-borne flexible accessory, and belongs to the technical field of high-precision spacecraft design as well as dynamical simulation and control. The simulation analysis platform for thermally-induced micro-vibration response of the satellite-borne flexible accessory comprises a data inputting and modeling module, an on-orbit thermal analysis module, an equivalent thermal load derivation module, a high-precision modal analysis module, a high-precision vibration response analysis module and a post-processing module, all of which are connected in a sequence; the output of the previous module serves as an input of the next module; and the analysis platform carries out analysis and simulation research on thermal vibration of an engineering-practical large-scale satellite-borne flexible accessory and research on corresponding software for calculation, and realizes the purpose of rapidly and efficiently obtaining the thermally-induced micro-vibration of large-scale flexible components and coupling vibration response between the components and a satellite. Meanwhile, the simulation analysis platform can promote engineering application, testing and verification of a thermal deformation and thermally-induced micro-vibration simulation technology of the large-scale satellite-borne flexible components, can drive progress of related support technical research and can accumulate a technological base for subsequent research of novel satellite types.

Description

technical field [0001] The invention relates to a thermally induced micro-vibration response simulation analysis platform for space-borne flexible accessories, and belongs to the technical field of high-precision spacecraft design and dynamics simulation and control. Background technique [0002] With the rapid development of aerospace technology, large flexible structures and flexible accessories are widely used in various spacecraft, such as large extendable antennas, solar panels, antenna support arms, etc. These flexible structures and flexible accessories often have the characteristics of large area, long and thin or long and thin, and low mass. Their support forms are mostly similar to cantilever structures, with relatively small lateral stiffness and low frequency. This type of flexible structure is equivalent to thermal shock when the temperature changes rapidly, leading to functional failure or even structural damage. When the spacecraft enters and exits the shadow...

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Problems solved by technology

Its advantage is that it adopts the directors of various companies, so that the accuracy and efficiency of calculation results at each stage can be considered to the maximum. The disadvantage is that it needs to develop the program interface between software, the amount of data exchange is relatively large, and the calculation efficiency is relatively low.

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