Plate-rod type satellite main structure

Abstract

The invention discloses a plate-rod type satellite main structure which comprises a butt joint ring, a main force bearing partition plate, a first rod system, a second rod system and a rectangular boxbody. A main bearing connecting flange is arranged on the upper end surface of the butt joint ring; a back floor of the rectangular box body is fixed on the butt joint ring; the main force bearing partition plate is installed in the rectangular box body and divides an inner cavity of the rectangular box body into two identical cavities, and two force bearing beams with V-shaped structures are embedded in a panel of the main force bearing partition plate. The two ends of the V-shaped structure penetrate through the back floor and then are correspondingly connected with the main force bearing connecting flanges on the butt joint ring. The same first rod system and the same second rod system are respectively arranged in the two same cavities, respectively penetrate through the back floor andthen are connected with the main bearing connecting flanges on the butt joint rings in a one-to-one correspondence manner; the bearing capacity of the structure can meet the requirements of medium-sized satellites, the structural openness is good, general assembly operation is facilitated, equipment is convenient to arrange, the cabin capacity is large, the structural dry weight is small, and structural efficient bearing is achieved.

Description

Technical field[0001]The invention belongs to the technical field of spacecraft structures, and specifically relates to a plate-and-rod satellite main structure.Background technique[0002]The main function of the satellite's main bearing structure is: to withstand the dynamic and static loads of the satellite launch section to ensure that the structure is not damaged or deformed; to provide installation interfaces for on-board equipment and maintain stable accuracy.[0003]The main structure of the satellite has three commonly used structural forms, namely the bearing cylinder type, the box plate type and the truss type. The three types of satellites have their own characteristics.[0004]Bearing cylinder satellites are mostly used for medium and large satellites, with relatively strong carrying capacity. The storage tanks are usually installed in series up and down, with a high center of mass and poor structural openness, which is unfavorable to the equipment layout. The internal space ...

AI Technical Summary

Problems solved by technology

[0004] Bearing tube satellites are mostly used for medium-sized and large satellites, with relatively strong carrying capacity. The storage tanks are usually installed in series up and down, with a high center of mass and poor structural openness, which is unfavorable for equipment layout. inconvenient

The box-plate satellite has a flat equipment installation surface, large cabin capacity and is conducive to equipment layout, but the local strength of the box-plate satellite's main load-bearing structure is low, and the local load capacity of the connection between the plate and the docking ring is small, which is only suitable for small satellites

The truss-type satellite has a strong carrying capacity and is suitable for large and super-large-scale satellites. The truss-type satellite is mostly suitable for large-scale concentrated load transfer, and the concentrated load is transferred through the truss connection point. It is not suitable for decentralized load and highly integrated small and medium-sized satellites.

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