Landing buffer device of reusable launch vehicle

Abstract

A landing buffer device of a reusable launch vehicle relates to the field of space launch vehicles and comprises a rocket body and four support legs, wherein the rocket body is of a vertically-arranged cylinder structure; the four support legs are symmetrically fixedly mounted to the side wall of the axial bottom end of the rocket body in a mutually perpendicular manner; the four support legs actsimultaneously and rotate along the joint between the support legs and the side wall of the rocket body to achieve the folding or unfolding of the four support legs; the diameter of the rocket body is120-140 mm; the height of the rocket body is 510-530 mm; the total mass of the rocket body is 1.2-1.3 kg; and the included angle between the rocket body and the vertical direction after the landing of the rocket body is no more than 10 degrees. The landing buffer device of the reusable launch vehicle is capable of realizing the repeated folding, unfolding and deformation by the four-legged motionto make support preparation for the landing of the launch vehicle, and is of great significance to the fields of adaptation to a landing motion sequence, self-adaptive attitude adjustment, stable landing achievement, efficient buffer against ground impact and so forth of the landing device for the reusable launch vehicle.

Description

technical field [0001] The invention relates to the field of aerospace vehicles, in particular to a landing buffer device for a reusable vehicle. Background technique [0002] The reusable vehicle can not only realize the large-scale recovery of multi-sub-level systems, reduce the hardware cost of space vehicles, but also greatly simplify the ground support and equipment, significantly reduce the cost of ground operations, and then achieve fast response, high density, and high maneuverability. , is an ideal space vehicle for space vehicles such as weapons and satellites to meet the needs of aerospace emergency operations, emergency disaster monitoring, and information support for emergency rescue and disaster relief. The landing buffer device is an important part of the reusable vehicle, which puts forward high requirements on the law of movement, buffer design and outrigger control. [0003] After completing the flight mission, the reusable vehicle relies on aerodynamic se...

AI Technical Summary

Problems solved by technology

[0004] During the landing process of the existing reusable vehicle, the complex aerodynamic environment under different meteorological conditions and the influence of the geographical environment conditions of the large-scale unknown landing site lead to the landing instability phenomenon caused by the inclined landing attitude of the reusable vehicle, as well as the high-speed landing process. The ground impact load is too large

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