Universal method for designing periodic orbits by homotopy classes in the elliptic restricted three-body problem

Zheng, Yue; Zhao, Min

doi:10.1007/s42064-023-0188-y

Astrodyn

2024

DOI: 10.1007/s42064-023-0188-y

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Universal method for designing periodic orbits by homotopy classes in the elliptic restricted three-body problem

Yue Zheng,

Min Zhao

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2024

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Cited by 1 publication

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Design of Entire-Flight Pinpoint Return Trajectory for Lunar DRO via Deep Neural Network

Huang,

Ding,

Yang

et al. 2024

Aerospace

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Lunar DRO pinpoint return is the final stage of manned deep space exploration via a lunar DRO station. A re-entry capsule suffers from complicated dynamic and thermal effects during an entire flight. The optimization of the lunar DRO return trajectory exhibits strong non-linearity. To obtain a global optimal return trajectory, an entire-flight lunar DRO pinpoint return model including a Moon–Earth transfer stage and an Earth atmosphere re-entry stage is constructed. A re-entry point on the atmosphere boundary is introduced to connect these two stages. Then, an entire-flight global optimization framework for lunar DRO pinpoint return is developed. The design of the entire-flight return trajectory is simplified as the optimization of the re-entry point. Moreover, to further improve the design efficiency, a rapid landing point prediction method for the Earth re-entry is developed based on a deep neural network. This predicting network maps the re-entry point in the atmosphere and the landing point on Earth with respect to optimal control re-entry trajectories. Numerical simulations validate the optimization accuracy and efficiency of the proposed methods. The entire-flight return trajectory achieves a high accuracy of the landing point and low fuel consumption.

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Design of Entire-Flight Pinpoint Return Trajectory for Lunar DRO via Deep Neural Network

Huang,

Ding,

Yang

et al. 2024

Aerospace

View full text Add to dashboard Cite

show abstract

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Universal method for designing periodic orbits by homotopy classes in the elliptic restricted three-body problem

Cited by 1 publication

References 18 publications

Design of Entire-Flight Pinpoint Return Trajectory for Lunar DRO via Deep Neural Network

Design of Entire-Flight Pinpoint Return Trajectory for Lunar DRO via Deep Neural Network

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