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首页> 外文期刊>Journal of Spacecraft and Rockets >Design of Landing-Gear Footpad Based on Resistive Force Generated by Celestial Soil
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Design of Landing-Gear Footpad Based on Resistive Force Generated by Celestial Soil

机译：基于天体土产生的阻力的起落架脚垫设计

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摘要

Minimizing the risk of tipping during landing is critical for achieving successful celestial surface explorations by moon, Mars, and asteroid landers. The footpad is an important part of the mechanism for tip-over prevention of landers because it is the only mechanical part that contacts the terrain surface during landing. The force that acts on the footpad depends on its shape, and so its design is important in preventing overturning of the lander. This study describes the relationship of the attachment angle of the footpad and the force that acts on it based on resistive force theory. This theory describes the relationship between the state of the mechanical part in granular media and the force that acts on its surface. Based on this theory, the footpad's attachment angle is optimized. The relationship between landing performance and the attached angle of the footpad is confirmed through dynamic simulations. The simulation results show that the tilted footpad is effective for safe landings under conditions in which there is a horizontal velocity component during landing.
机译：对于成功完成月球，火星和小行星着陆器的天体表面探测，最小化降落的风险至关重要。脚垫是防止着陆器倾翻的机制的重要组成部分，因为它是着陆过程中唯一接触地形表面的机械部件。作用在脚垫上的力取决于其形状，因此其设计对于防止着陆器翻倒很重要。这项研究基于阻力理论描述了脚垫的附着角度与作用在脚上的力之间的关系。该理论描述了机械零件在颗粒介质中的状态与作用在其表面上的力之间的关系。基于此理论，可优化脚垫的附着角度。通过动态仿真可以确认着陆性能与脚垫附着角度之间的关系。仿真结果表明，倾斜的脚垫在着陆过程中存在水平速度分量的情况下对于安全着陆是有效的。

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  • 来源
    《Journal of Spacecraft and Rockets》 |2019年第1期|104-116|共13页
  • 作者

    Maeda Takao; Otsuki Masatsugu; Hashimoto Tatsuaki;

  • 作者单位

    Chuo Univ, Fac Sci & Engn, Bunkyo Ku, Tokyo 1128551, Japan;

    Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan;

    Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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