10th China Trajectory Optimization Competition: Problem description and summary of the results
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https://doi.org/10.1007/s42064-020-0089-2
10th China Trajectory Optimization Competition: Problem description and summary of the results Xuxing Huang, Bin Yang, Pan Sun, Shuang Li (), and Hongwei Yang College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
ABSTRACT
KEYWORDS
From March 20, 2019 to April 30, 2019, the 10th China Trajectory Optimization
China Trajectory Optimization
Competition (CTOC10) was jointly held by the Chinese Society of Theoretical and
Competition (CTOC)
Applied Mechanics and Nanjing University of Aeronautics and Astronautics. The
mission design
CTOC10 focused on trajectory optimization for Jovian exploration. The team from
trajectory optimization
Harbin Institute of Technology won the first prize. In this paper, first, the history of the
Jovian exploration
CTOC is presented. Subsequently, the mission of the CTOC10 is introduced, and an account of the final rankings of the competition is given. Finally, trajectory optimization methods are discussed, and suggestions for practical missions are provided.
Research Article Received: 1 June 2020 Accepted: 23 June 2020 © Tsinghua University Press 2020
1
Introduction
Spacecraft (S/C) trajectories are designed and optimized on the basis of dynamic coupling, multiple constraints, consumption, as well as the mission scale and resources. Currently, trajectory design focuses on both the mission planning and the trajectory optimization while considering multiple factors. Existing optimization methods cannot provide a global optimal solution as some mission factors are difficult to optimize using mathematical methods [1]. The China Trajectory Optimization Competition (CTOC) series was established by Tsinghua University and the Chinese Society of Theoretical and Applied Mechanics in 2009 [1]. Inspired by the Global Trajectory Optimization Competition (GTOC) [2, 3], CTOC focuses on the conceptualization and development of future space missions by improving the trajectory design and optimizing the capability of Chinese institutional affiliates through an exchange of novel space mission theories and techniques. It also promotes the development of related fields [1, 3]. To ensure a scientific and fair competition environment, the champion of the current competition automatically [email protected]
acquires the right to host the next competition. Under this regulation, the CTOC has been successfully held ten times by several universities and institutes [1]. With the expansion of its influence, the CTOC has attracted international participants in recent years. Some basic information about the CTOC series, including holding years, mission descriptions, and previous champions, is presented in Table 1. The 10th CTOC (CTOC10) was sponsored by the Chinese Society of Theoretical and Applied Mechanics and held by Nanjing University of Aeronautics and Astronautics [4, 5]. This competition lasted for one and a half months, from March 20, 2019 to April 30, 2019, and 62 teams (including 8 international teams) contended
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