CHANG’E-5T1 extended mission: The first lunar libration point flight via a lunar swing-by

Liu, Lei; Li, Jisheng

doi:10.1016/j.asr.2016.05.015

Cited by 11 publications

(2 citation statements)

References 14 publications

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“…[ 11 ] Later, the Chinese Chang'e‐5 mission entered the EML2 Lissajous orbit for exploration in 2014. [ 12 ] The study about the long‐term exploration in the EML2 Halo orbit, especially the in‐orbit performance of the solar array, has not been reported. Chang'e‐4 Relay Satellite was launched on May 21, 2018.…”

Section: Introductionmentioning

confidence: 99%

In‐Orbit Performance Analysis of Solar Array for Chang'e‐4 Relay Satellite in an Earth–Moon Lagrangian Point 2 Halo Orbit

Yang

Xiao

et al. 2022

Solar RRL

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Herein, the in‐orbit performance of the solar array for Chang'e‐4 Relay Satellite in an Earth–Moon Lagrangian point 2 (EML2) Halo orbit is analyzed. The daily degradation coefficient of the photovoltaic current is calculated to be 0.99989 independent of whether the relay antenna outspreads, indicating an annual degradation coefficient of 3.94%. However, due to the shading effect of the antenna and the electrical performance degradation, the output voltage of the solar array dissatisfies the requirement of the power controller on around the 700th day, resulting in an abrupt decrease of the photovoltaic current. In addition, the in‐orbit working temperature of the solar array for Chang'e‐4 Relay Satellite is also studied. The working temperature mainly ranges from 52.3 to 76.8 °C, while the working temperature decreases to the range of 0–25 °C once the relay antenna outspreads. The present work is helpful to a deepen the understanding of EML2 Halo orbit and provide reference to the solar array design for a deep space exploration aircraft.

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Section: Introductionmentioning

confidence: 99%

In‐Orbit Performance Analysis of Solar Array for Chang'e‐4 Relay Satellite in an Earth–Moon Lagrangian Point 2 Halo Orbit

Yang

Xiao

et al. 2022

Solar RRL

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“…The most crucial strategy of lunar exploration is soft landing, and also it is essential for lunar research in the above-represented countries [ 17 ]. However, the security, precision, cost, and proficiency are the significant deficiencies of lunar soft landing missions.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Approach Named HUAPO Technique to Guide the Lander Based on the Landing Trajectory Generation for Unmanned Lunar Mission

Latif

Mehedi

Iskanderani

et al. 2022

Computational Intelligence and Neuroscience

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This manuscript proposes a hybrid method for landing trajectory generation of unmanned lunar mission. The proposed hybrid control scheme is the joint execution of the human urbanization algorithm (HUA) and political optimizer (PO) with radial basis functional neural network (RBFNN); hence it is named as HUA-PORFNN method. The HUA is a metaheuristic method, and it is used to solve several optimization issues and several nature-inspired methods to enhance the convergence speed with quality. On the other hand, multiple-phased political processes inspire the PO. The work aims to guide the lander with minimal fuel consumption from the initial to the final stage, thus minimizing the lunar soft landing issues based on the given cost of operation. Here, the HUAPO method is implemented to overcome thrust discontinuities, checkpoint constraints are suggested for connecting multi-landing phases, angular attitude rate is modeled to obtain radical change rid, and safeguards are enforced to deflect collision along with obstacles. Moreover, first, the issues have been resolved according to the proposed HUAPO method. Here, energy trajectories with 3 terminal processes are deemed. Additionally, the proposed HUAPO method is executed on MATLAB/Simulink site, and the performance of the proposed method is compared with other methods.

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Design and implementation of Chinese libration point missions

Liu

Wu²,

Liu

2023

Sci. China Inf. Sci.

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CHANG’E-5T1 extended mission: The first lunar libration point flight via a lunar swing-by

Cited by 11 publications

References 14 publications

In‐Orbit Performance Analysis of Solar Array for Chang'e‐4 Relay Satellite in an Earth–Moon Lagrangian Point 2 Halo Orbit

In‐Orbit Performance Analysis of Solar Array for Chang'e‐4 Relay Satellite in an Earth–Moon Lagrangian Point 2 Halo Orbit

Hybrid Approach Named HUAPO Technique to Guide the Lander Based on the Landing Trajectory Generation for Unmanned Lunar Mission

Design and implementation of Chinese libration point missions

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