A carrier rocket sub-stage recovery protection landing mechanism, device and working process

Abstract

The invention discloses a launch vehicle stage recovery protective landing mechanism, a launch vehicle stage recovery protective landing device and workflow. The launch vehicle stage recovery protective landing mechanism comprises an inflating mechanism, buffer airbags and a protective airbag. The buffer airbags include an outside airbag and an inside airbag; the inside airbag comprises a keel airbag and a padding airbag. The buffer airbag is arranged under the protective airbag which is communicated with the inside airbag; the keel airbag is communicated with the inside of the padding airbag.The padding airbag is provided with a first air inlet, and the protective airbag is provided with a second air inlet. The inflating mechanism inflates the inside airbag and the protective airbag simultaneously through the first air inlet and the second air inlet. The outside airbag is provided with at least one one-way inlet valve and at least one exhaust port; the exhaust ports are provided withrupture disks respectively. Under constraint of certain mass, vertical speed and horizontal speed of the launch vehicle body before landing for recovery are both reduced effectively, the launch vehicle body is protected from all sides, and thus the purpose of recovering the stages safely is achieved.

Description

Technical field [0001] The invention belongs to the technical field of carrier rocket overall design, and particularly relates to a carrier rocket sub-level recovery protection landing mechanism, device and working process. Background technique [0002] Reusing the launch vehicle can not only reduce the launch cost, but also save the production time of the one-time launch vehicle and increase the launch frequency. The reuse technology is one of the future development directions of the launch vehicle. The launch vehicle sub-level recovery and landing technology is the reuse of the carrier. The key technology of the rocket. [0003] The reusable carrier rocket sub-stage has a certain vertical and horizontal speed before the recovery and landing. If there is no cushion landing device, the structure of the rocket body and the engine will be damaged due to a large landing impact overload. In order to make the launch vehicle sub-stage in a relatively good landing impact environment, it ...

AI Technical Summary

Problems solved by technology

Both the parachute and the landing bracket are installed on the sub-stage of the launch vehicle, which increases the weight of the sub-stage of the launch vehicle, reduces the payload of the sub-stage of the launch vehicle, and changes the aerodynamic shape of the rocket to a large extent, increasing the risk during flight

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