Cross bracing main structure for spacecraft

Abstract

The invention provides a cross bracing main structure for a spacecraft. The cross bracing main structure comprises a butt ring, a bottom plate, a partition plate, an upper frame, an inclined side plate, two gas cylinder fixing side plates, a top plate, three first side plates and a second side plate. A connector is provided by the butt ring, and a high-capacity storage tank which accounts for most of weight of the spacecraft is permitted to be arranged on the butt ring, so that the barycenter height of the spacecraft is lowered to the maximal extent; launching load born on a main load-carrying structure is greatly reduced; the landing stability of a lander is greatly improved in application of the lander structure; the structural weight of the spacecraft is greatly reduced. The spacecraft structure is formed by taking the partition plate, into which a rectangular beam is embedded, in a honeycomb plate structure as a main load-carrying element, so that the spacecraft has the characteristic of truss type centralized loading, and simultaneously has the characteristics of installation convenience and relatively large equipment line installation area as a honeycomb plate composition structure.

Description

technical field [0001] The invention belongs to the technical field of aerospace structures, and relates to a main structure configuration of a cross support of a spacecraft, which is suitable for the main structure of a spacecraft such as a lunar lander that needs to be equipped with a plurality of large-capacity storage tanks. Background technique [0002] In addition to bearing the launch load, the structure of the Chang'e-3 lander will also bear the landing load, and the landing load acts on the concentrated point of the structure through the landing buffer mechanism, which requires that the structure of the lander is very different from the structure of traditional satellites and spacecraft. Big difference. The traditional satellite box-plate structure cannot meet the centralized load-bearing requirements, and the structure efficiency of similar foreign truss-type landers is low and cannot meet the weight requirements. [0003] In order to improve the landing stability...

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Problems solved by technology

[0004] In view of this, the present invention provides a spacecraft cross support main structure, which is suitable for lander structures and spacecraft structures, and solves the problem of flattening and installing large-capacity tanks to reduce the height of the center of mass. In the process o

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