A Numerical Research on a New Type of Asteroid Flexible Probe

The asteroid landing detection is of great scientific and economic value. The traditional landing rigid probe is prone to rebound and escape due to the asteroid's weak gravity and rugged terrain. Flexible body can avoid these problems by its deformation energy dissipation and ability to recover...

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Bibliographic Details
Published in:IEEE access 2021, Vol.9, p.129863-129873
Main Authors: Yan, Weifeng, Baoyin, Hexi
Format: Article
Language:English
Subjects:
Aerodynamics
Asteroid detection
Asteroid exploration
Damping
dynamics
Energy dissipation
Feasibility
Flexible bodies
flexible probe
Gravity
Harmonic analysis
Internal forces
Landing
landing detection
Mathematical models
Numerical models
Probes
Sliding friction
Solar system
Spherical harmonics
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Summary:The asteroid landing detection is of great scientific and economic value. The traditional landing rigid probe is prone to rebound and escape due to the asteroid's weak gravity and rugged terrain. Flexible body can avoid these problems by its deformation energy dissipation and ability to recovery. To promote the development of asteroid detection, this paper proposes a new type of flexible asteroid landing probe and demonstrates its advantages and feasibility. Firstly, this paper establishes a theory of asteroid's dynamics environment with the polyhedron method and the spherical harmonic method. Secondly, this paper uses the discrete shell model to calculate the flexible probe's internal force, the spring damping model and viscous-sliding friction model for its external force. Thirdly, this paper builds the flexible landing dynamics equations and achieves the dynamics simulation of the flexible probe. Finally, this paper demonstrates the advantages and feasibility of the flexible probe through two landing examples.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2021.3114220