Dynamical behavior of flexible net spacecraft for landing on asteroid

Yu, Yang; Baoyin, Hexi

doi:10.1007/s42064-021-0102-4

Cited by 19 publications

(6 citation statements)

References 36 publications

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“…Based on the number of available interceptor satellites, n, and the impulse, I s , that can be provided by the asteroid impulse generator, the maximum total impulse velocity increment ||∆v total || that is provided by the available interceptor satellite formation can be calculated by Equation (10):…”

Section: Asteroid Interception Position Assessment and Selectionmentioning

confidence: 99%

“…According to Equation (10), the maximum impulse velocity increment that each interceptor satellite can provide is ||∆v i ||= 0.1 km/s . To ensure universality and representativeness, t i = 60, 000 s, t i = 120, 000 s, and t i = 160, 200 s were selected as examples in this section.…”

Section: Comparison Simulations Of Asteroid Terminal Defence Using Th...mentioning

confidence: 99%

“…Therefore, the study of asteroid defence is of great value and challenge. Researchers have conducted numerous studies in the fields of asteroid monitoring [6], orbit calculation [7][8][9], and asteroid landing and detection [10][11][12][13][14]. Additionally, space debris monitoring systems can provide information support for asteroid defence.…”

Section: Introductionmentioning

confidence: 99%

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Multisatellite Task Allocation and Orbit Planning for Asteroid Terminal Defence

et al. 2022

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Near-Earth asteroids are a great threat to the Earth, especially potential rendezvous and collision asteroids. To protect the Earth from an asteroid collision, it is necessary to investigate the asteroid defence problem. An asteroid terminal defence method based on multisatellite interception was designed in this study. For an asteroid intruding in the sphere of the gravitational influence of the Earth, multiple interceptor satellites are used to apply a kinetic energy impulse to deflect the orbit of the asteroid. First, the effects of planned interception time and planned interception position on the required impulse velocity increment applied to the asteroid are assessed for interception opportunity selection. Second, multiple interceptor satellites are selected to perform the defence task from the on-orbit available interceptor satellite formation. An improved contract net protocol algorithm considering the Lambert orbital manoeuvre is designed to fulfil the task allocation and satellite orbit planning. Finally, simulation experiments demonstrate the rationale and effectiveness of the proposed method, which provides support for asteroid terminal defence technology.

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Section: Asteroid Interception Position Assessment and Selectionmentioning

confidence: 99%

Section: Comparison Simulations Of Asteroid Terminal Defence Using Th...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Multisatellite Task Allocation and Orbit Planning for Asteroid Terminal Defence

et al. 2022

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“…For instance, Kent [7] et al recommended a detailed study on the Hayabusa 2's trajectory and attitude on the asteroid, which conduced to the subsequent asteroid landing. Zhang et al [18] also proposed a model of asteroid dynamics environment and demonstrated the feasibility of a flexible net spacecraft. In addition, Si et al [19] studied the attachment and collision theory of the flexible bodies, and put forward a flexible net for space capture.…”

Section: Introductionmentioning

confidence: 99%

“…Considering that, there are still many problems to be solved in the dynamics study of the flexible probe. First of all, how to model the complex interaction between the flexible probe and the asteroid [18] ? Secondly, how's the cushioning effect of the flexible probe under a weak gravity?…”

Section: Introductionmentioning

confidence: 99%

A Numerical Research on a New Type of Asteroid Flexible Probe

Yan

Baoyin

2021

IEEE Access

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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.

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On-board modeling of gravity fields of elongated asteroids using Hopfield neural networks

Zhao

Yang

et al. 2022

Astrodyn

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Dynamical behavior of flexible net spacecraft for landing on asteroid

Cited by 19 publications

References 36 publications

Multisatellite Task Allocation and Orbit Planning for Asteroid Terminal Defence

Multisatellite Task Allocation and Orbit Planning for Asteroid Terminal Defence

A Numerical Research on a New Type of Asteroid Flexible Probe

On-board modeling of gravity fields of elongated asteroids using Hopfield neural networks

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