Flight dynamics in the gravitational fields of irregular asteroids

LI Junfeng; ZENG Xiangyuan

doi:10.6052/1000-0992-16-042

Volume 47 Issue 1

Feb. 2017

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LI Junfeng, ZENG Xiangyuan. Flight dynamics in the gravitational fields of irregular asteroids[J]. Advances in Mechanics, 2017, 47(1): 429-451. doi: 10.6052/1000-0992-16-042

Citation:

LI Junfeng, ZENG Xiangyuan. Flight dynamics in the gravitational fields of irregular asteroids[J]. Advances in Mechanics, 2017, 47(1): 429-451. doi: 10.6052/1000-0992-16-042

LI Junfeng, ZENG Xiangyuan. Flight dynamics in the gravitational fields of irregular asteroids[J]. Advances in Mechanics, 2017, 47(1): 429-451. doi: 10.6052/1000-0992-16-042

Citation:

LI Junfeng, ZENG Xiangyuan. Flight dynamics in the gravitational fields of irregular asteroids[J]. Advances in Mechanics, 2017, 47(1): 429-451. doi: 10.6052/1000-0992-16-042

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Flight dynamics in the gravitational fields of irregular asteroids

doi: 10.6052/1000-0992-16-042

LI Junfeng^1
,,
ZENG Xiangyuan^{2
,
,}

1.
School of Aerospace Engineering, Tsinghua University, Beijing 100084, China
2.
School of Automation, Beijing Institute of Technology, Beijing 100081, China

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Author Bio:
LI Junfeng, E-mail: lijunf@tsinghua.edu.cn
Corresponding author: ZENG Xiangyuan, E-mail: zeng@bit.edu.cn
Received Date: 2016-11-15
Available Online: 2017-01-20
Publish Date: 2017-02-24

Abstract

Abstract

Asteroid exploration is one of the main topics of deep space exploration, and has great scientific significance. Due to the irregular gravitational field of most asteroids, dynamical behaviors of spacecraft close to them are very complicated. Affected by the central gravity, the perturbing forces from the fast spin of the irregular shapes of asteroids, the solar radiation pressure force, etc., the spacecraft easily collide with the asteroids or escape from them. In this article, an overview of the status of asteroid research and the irregular gravitational field modeling methods is given. Particularly, this article focuses on the dynamic characteristics of irregular gravitational fields, including equilibrium points, local manifolds, natural periodic orbits and body-fixed hovering flights, and tries to propose new research directions.
- asteroid exploration,
- irregular gravitational field,
- local manifold,
- periodic orbits,
- body-fixed hovering

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References(88)

References

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