Shape memory alloy spacecraft landing buffer capable of being used repeatedly

Abstract

The invention discloses a shape memory alloy spacecraft landing buffer capable of being used repeatedly. A pore blocky shape memory alloy structure formed by bonding multiple layers of wave buffer structures is adopted, energy is consumed through the phase change process of a shape memory alloy material in the deformation process, and the effect of buffer energy absorption is achieved; and meanwhile through the memory effect of the shape memory alloy material to the initial shape, the shape memory alloy material can restore to the initial shape in a heating manner, and therefore buffer is achieved, and the buffer can be used repeatedly.

Description

technical field [0001] The invention relates to a reusable shape memory alloy spacecraft landing buffer, belonging to the technical field of spacecraft landing buffers. Background technique [0002] During the landing process of a spacecraft, it is necessary to use a buffer device to reduce the impact on the internal personnel and loads, and the traditional buffer device usually uses the plastic deformation caused by the buckling of the aluminum honeycomb compression to buffer energy consumption, but the aluminum honeycomb compression occurs buckling After that, it is difficult to realize automatic reset and cannot be reused. Taking into account both benefits and costs, it is necessary to launch multiple personnel and materials in one flight mission. For this reason, the spacecraft needs to be able to perform multiple soft landings. However, it is difficult to replace or maintain traditional buffer devices in deep space environments such as the moon. Meet the requirements o...

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Problems solved by technology

[0002] During the landing process of a spacecraft, it is necessary to use a buffer device to reduce the impact on the internal personnel and loads, and the traditional buffer device usually uses the plastic deformation caused by the buckling of the aluminum honeycomb compression to buffer energy consumption, but the aluminum honeycomb compression occurs buckling Difficult to achieve automatic reset after that, and cannot be reused

Taking into account both benefits and costs, it is necessary to launch multiple personnel and materials in one flight mission. For this reason, the spacecraft needs to be able to perform multiple soft landings. However, it is difficult to replace or maintain traditional buffer devices in deep space environments such as the moon. Meet the requirements of the flight mission

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