• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2023, Vol. 59 ›› Issue (1): 19-34.doi: 10.3901/JME.2023.01.019

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Planetary Child Rover for Lava Tube Exploration and Its Parametric Design

HUANG Lan1, YU Zhaowei1, DING Liang1, YANG Huaiguang1, GAO Haibo1, DENG Zongquan1, YANG Chenguang2   

  1. 1. State key Laboratory of Robot and System, Harbin Institute of Technology, Harbin 150080;
    2. Bristol Robotics Laboratory, the University of the West of England, Bristol BS16 1QY, UK
  • Received:2021-12-13 Revised:2022-10-10 Online:2023-01-05 Published:2023-03-30

Abstract: Planetary lava tubes which are shortcuts into the extraterrestrial ground are of particular interest to scientific and mineral exploration. This research presents a new tethered planetary lava tube exploration rover and researches its parametric design method. With consideration of steering and tether-assisted release and retrieve on the cliff of the lava tube, the configuration of the planetary rover is designed. Based on terramechanics, the parametric optimization design of the tethered three-wheeled mobile mechanism is completed with consideration of mobility on deformable terrains around the entrance of the lava tube and in the accumulation area at the bottom of the lava tube, as well as the load distribution, placidity and anti-tipping on the non-deformable terrain the of lava tube. Simulation and experimental results demonstrate that the planetary rover designed by using the proposed method satisfies the technical requirements; compared with those without optimization, the rover has stronger mobility, which supports the parametric design of multi-wheel (4-wheel, 6-wheel, etc.) planetary rovers.

Key words: lava tube exploration, planetary child rover, parametric design, multi-wheeled mobile system, terramechanics

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