Carrier rocket tail sub-stage structure

Abstract

The invention discloses a carrier rocket tail sub-stage structure, which comprises a power cabin, an instrument cabin and a stiffening beam structure, wherein the power cabin provides mounting space for a tail sub-stage power system; the instrument cabin is connected to the upper end of the power cabin, and a plurality of mounting interfaces for mounting instruments are formed in the inner wall ofthe instrument cabin; the stiffening beam structure comprises at least two stiffening beams which are arranged in parallel, and two ends of each stiffening beam are respectively connected with the inner wall of the instrument cabin; and the middle parts of the at least two stiffening beams are connected with a connecting disc for providing a connecting interface for the tail sub-stage power system. The stiffening beam structure of a double-beam parallel structure is adopted in the instrument cabin, the self weight of the stiffening beam structure can be reduced on the premise that the stability of a connecting disc installation structure is guaranteed, the power cabin and the instrument cabin are respectively made of an integrated structure, and the effect of reducing the self-weight of the whole carrier rocket tail sub-stage structure can also be achieved. Meanwhile, the inner wall of the instrument cabin can provide mounting interfaces for a large quantity of equipment, and the carrying efficiency of the rocket is improved while the starting resistance during rocket launching is reduced.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a final stage structure of a carrier rocket. Background technique [0002] The launch vehicle is usually used as a means of transportation to send payloads such as various satellites into space. The launch vehicle is usually composed of two to four stages, and each stage includes a rocket body structure and an engine. [0003] The last stage of the launch vehicle is generally equipped with electrical equipment for the entire rocket, including guidance and control systems, telemetry systems, safety systems, etc., and there are many instrument installation interfaces. It is also necessary to install the power system of the last sub-stage, which must bear a relatively large load. In addition, satellites are usually installed on the last sub-level, which requires the last sub-level to provide a reliable installation interface. [0004] The last stage of the launch vehicle enters...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical problems of unreasonable layout, complex assembly, high requirements, weak bearing capacity and heavy weight of the launch vehicle terminal structure in the prior art, thereby providing a launch vehicle terminal level structure

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