空间系绳碎片碰撞生存能力研究

于子媛; 李爱军; 杨庶; 王长青

doi:10.11728/cjss2018.04.560

空间系绳碎片碰撞生存能力研究

doi: 10.11728/cjss2018.04.560

西北工业大学自动化学院西安 710129

基金项目:

国家国际科技合作专项（2012XXXX），中央高校基本科研业务费专项（3102017JC06002）和陕西省科学技术研究计划项目（2017KW-ZD-04）共同资助

详细信息

作者简介:
杨庶,E-mail:syang@nwpu.edu.cn

中图分类号: V423;O341
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- 被引次数: 0
出版历程
- 收稿日期: 2017-05-23
- 修回日期: 2017-10-24
- 刊出日期: 2018-07-15

Study on the Survivability of Space Tethers Due to Debris Collisionsormalsize

School of Automation, Northwestern Polytechnical University, Xi'an 710129

摘要

摘要: 空间系绳结构和几何尺寸对其在复杂空间环境中抵抗碎片碰撞的能力有显著影响.本文根据系绳-碎片碰撞模型和泊松分布，计算了双股系绳和带状系绳被碎片割断的概率，分析了太空碎片对系绳生存能力可能造成的影响.双股系绳是由两条平行系绳每隔一段距离打结连接构成，带状系绳可视为一种横截面为矩形的特殊单股系绳.首先对单股系绳被碎片割断的概率进行建模，然后构建双股系绳和带状系绳生存能力函数，最后根据空间碎片环境模型，对比分析具有不同结构、不同尺寸的系绳的生存能力.仿真结果表明，相较于单股系绳，双股系绳和带状系绳的生存能力有明显提高.
- 系绳生存能力 /
- 泊松分布 /
- 碎片通量
Abstract: The structures and dimensional parameters of space tether significantly affect their survivability against space debris collisions in complex space environment. This work addresses the probability analysis for double tethers and tape tethers severed by debris based on tether-debris collision model and Poisson distribution. The influence of debris on the survivability of space tethers is also studied. A double tether is a pair of parallel strings connected at a certain distance, and tape tethers can be treated as a specific type of single tethers with rectangular cross-sections. The probability of single tethers severed by space debris is modeled, and the survivability functions for double tethers and tape tethers are also formulated. Moreover, the survivability of tethers with different structures and dimensional parameters is calculated based on a cumulative debris flux model. The results show that double tethers and tape tethers are of higher survivability compared with single tethers.
- Survivability of tethers /
- Poisson distribution /
- Cumulative debris flux

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参考文献(20)

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