一种微重力环境下低温推进剂被动蒸发量抑制方法和系统

By optimizing the arrangement of multi-layer thermal insulation materials and the flight trajectory design, the problem of controlling the evaporation of cryogenic propellants in a microgravity environment was solved, improving carrying capacity and structural efficiency, and supporting the design of new space transfer and transportation systems.

CN120964069BActive Publication Date: 2026-07-17BEIJING INST OF ASTRONAUTICAL SYST ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF ASTRONAUTICAL SYST ENG
Filing Date
2025-09-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, cryogenic propellants are easily affected by solar radiation and Earth's infrared radiation in microgravity environments, making it difficult to control evaporation and limiting their long-term application in new space transfer and transportation systems.

Method used

Passive evaporation suppression is achieved by using multilayer thermal insulation material (MLI). The arrangement of the multilayer thermal insulation material is optimized by calculating the transfer orbit period, solar position, and Earth shadow model. Combined with flight trajectory design, iterative calculations are performed to control propellant evaporation.

Benefits of technology

It enables the efficient storage of cryogenic propellants in orbit, improves carrying capacity and structural efficiency, and supports the design and optimization of new space transfer and transportation systems.

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Abstract

本发明提供一种微重力环境下低温推进剂被动蒸发量抑制方法和系统,方法包括:S1、根据转移运载器运行任务剖面,设计转移轨道形式并确定转移轨道近地点与远地点,计算转移轨道周期;S2、通过转移轨道方程、太阳位置及地球阴影模型动态仿真计算,获得转移运载器在轨日照时长;S3、计算转移运载器表面受到的空间外热流数据和多层隔热材料外表面温度;S4、计算多层隔热材料在不同布置形式下的热流密度,选取绝热效果最优的多层隔热材料布置形式;S5、评估运载器携带的低温推进剂是否满足弹道允许用量,通过优化转移弹道,持续迭代计算,直至运载器携带的低温推进剂满足弹道允许用量。
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