Surface sliding behavior analysis of space probes in simulated extraterrestrial environments
Surface sliding behavior analysis of space probes in simulated extraterrestrial environments
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DOI：
10.1109/iros51168.2021.9635958
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发表时间：
2021-09
期刊：
影响因子：
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通讯作者：
M. Sutoh;Y. Sakakieda;M. Otsuki;Taizou Kobayashi
中科院分区：
文献类型：
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作者：
M. Sutoh;Y. Sakakieda;M. Otsuki;Taizou Kobayashi
本研究分析了空间探测器在模拟地外环境中的表面滑动行为。当太空探测器降落在地外天体上时，它的起落架（脚垫，着陆腿）接触地面并沿地面沿着。各种参数的影响（即，脚垫尺寸、速度、地面条件、大气压力和重力）对脚垫摩擦性能的影响。首先，我们开发了一个实验系统，可以重复进行脚垫滑动测试。随后，该系统被用于在各种条件下进行测试：1）在正常大气条件下的地面上，2）在真空中，3）在重力降低的情况下。在真空和失重条件下进行的测试表明，脚垫的摩擦性能在很大程度上不受大气压力和重力的影响。本文的研究结果为空间探测器着陆地外天体提供了有用的设计和控制指南。
This study analyzes the surface sliding behavior of space probes in simulated extraterrestrial environments. When a space probe lands on an extraterrestrial body, its landing gear (footpad, landing legs) contacts and slides along the ground surface. The influence of various parameters (i.e., footpad size, velocity, ground condition, atmospheric pressure, and gravity) on the friction behavior of footpads was experimentally evaluated herein. First, we developed an experimental system that can perform footpad sliding tests repeatedly. Subsequently, the system was used to perform tests under various conditions: 1) on ground under normal atmospheric conditions, 2) in a vacuum, and 3) in reduced gravity. The tests performed in a vacuum and in reduced gravity indicated that the friction behavior of the footpad is largely unaffected by atmospheric pressure and gravity. The findings obtained herein offer useful design and control guidelines for space probes landing on extraterrestrial bodies.