Composite material structure applicable to point-connected spacecraft

Abstract

The invention relates to a composite material structure applicable to a point-connected spacecraft in the field of star-arrow connecting structures. The composite material structure comprises a force-bearing barrel lower end frame and reinforcing corner boxes, wherein the section of the force-bearing barrel lower end frame is F-shaped; the force-bearing barrel lower end frame mainly comprises an inclined plane, riveting holes, a flanging flange and connecting flanges; the section of the reinforcing corner boxes is L-shaped; riveting holes are formed in the reinforcing corner boxes; the reinforcing corner boxes are riveted to the inclined plane of the lower end frame; the sections of the reinforcing corner boxes are fitted to the surfaces of the inclined plane and the connecting flanges. The composite material structure meets a lightweight design requirement of a force-bearing barrel of a new-generation Mars probe structural platform in China and also guarantees the connecting strengthand the connecting rigidity during connection with a carrier.

Description

technical field [0001] The invention relates to the technical field of star-rocket connection structures, in particular to a composite material structure suitable for point connection of spacecraft. Background technique [0002] With my country's demand for high-precision and high-resolution imaging of spacecraft, especially high-orbit spacecraft put forward strict requirements on the thermal deformation of the installation structure of attitude control instruments, it is almost impossible for the current traditional design form to meet high-orbit spacecraft. High-precision attitude determination and image navigation registration requirements. [0003] Conventional structures of this kind generally require light weight, high rigidity, good electrical conduction and heat transfer characteristics, and sufficient strength, so they are often machined from lightweight aluminum alloy or magnesium alloy materials. When the spacecraft is in orbit, these installation structures are i...

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