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Cubic rovers that traverse by hopping systems are promising in low-gravity environments. Although several analyses of the control methods and mobility of the cubic rover are available, investigations of its attitude-adjusting behavior are still limited. This study derives the dynamic equations of the two attitude-adjusting modes of the cubic rover, referred to as walking and twisting. The relationships between the speed threshold and rotation angle of the cubic rover were investigated in both rigid and regolith environments using a self-designed low-gravity testbed. Comparative studies were conducted by considering the experimental and simulated outputs. The results of this study can be interesting for roving mission planning when exploring planetary moons and small celestial bodies.


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Attitude-adjusting dynamical behavior of cubic rover on low-gravity testbed

Show Author's information Bowen JiangMuhammad Talha HussainXiangyuan Zeng( )
School of Automation, Beijing Institute of Technology, Beijing 100081, China

Abstract

Cubic rovers that traverse by hopping systems are promising in low-gravity environments. Although several analyses of the control methods and mobility of the cubic rover are available, investigations of its attitude-adjusting behavior are still limited. This study derives the dynamic equations of the two attitude-adjusting modes of the cubic rover, referred to as walking and twisting. The relationships between the speed threshold and rotation angle of the cubic rover were investigated in both rigid and regolith environments using a self-designed low-gravity testbed. Comparative studies were conducted by considering the experimental and simulated outputs. The results of this study can be interesting for roving mission planning when exploring planetary moons and small celestial bodies.

Keywords: experimental study, low-gravity testbed, attitude-adjusting motion, cubic rover

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Publication history
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Acknowledgements

Publication history

Received: 31 May 2023
Accepted: 25 September 2023
Published: 08 February 2024
Issue date: March 2024

Copyright

© Tsinghua University Press

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11972075 and 12222202) and Beijing Institute of Technology (Grant No. 2021CX01029).

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