A Pattern Search Method to Optimize Mars Exploration Trajectories
The Korean National Space Council recently released “Mars Exploration 2045” as part of its future strategic plan. The operations for a Mars explorer can be defined based on domestically available capabilities, such as ground operations, launch, in-space transport and deep space link. Accordingly, al...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/10/10/827 |
| _version_ | 1797575081220636672 |
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| author | Su-Jin Choi Hongjae Kang Keejoo Lee Sejin Kwon |
| author_facet | Su-Jin Choi Hongjae Kang Keejoo Lee Sejin Kwon |
| author_sort | Su-Jin Choi |
| collection | DOAJ |
| description | The Korean National Space Council recently released “Mars Exploration 2045” as part of its future strategic plan. The operations for a Mars explorer can be defined based on domestically available capabilities, such as ground operations, launch, in-space transport and deep space link. Accordingly, all of our exploration scenarios start from the Naro space center, and the pathway to Mars is optimized using an objective function that minimizes the required ∆V. In addition, the entire phase of Mars orbit insertion should remain in contact with our deep space antennas, a measure that is imposed as an operational constraint. In this study, a pattern search method is adopted, as it can handle a nonlinear problem without relying on the derivatives of the objective function, and optimal trajectories are generated on a daily basis for a 15-day launch period. The robustness of this direct search method is confirmed by consistently converged solutions showing, in particular, that the ascending departure requires slightly less ∆V than the descending departure on the order of 10 m/s. Subsequently, mass estimates are made for a Mars orbiter and a kick stage to determine if the desired ∆V is achievable with our eco-friendly in-space propulsion system when launched from our indigenous launch vehicle, KSLV-II. |
| first_indexed | 2024-03-10T21:32:16Z |
| format | Article |
| id | doaj.art-64cb1d108cb24c6dbc687635f7d33599 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-10T21:32:16Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-64cb1d108cb24c6dbc687635f7d335992023-11-19T15:16:42ZengMDPI AGAerospace2226-43102023-09-01101082710.3390/aerospace10100827A Pattern Search Method to Optimize Mars Exploration TrajectoriesSu-Jin Choi0Hongjae Kang1Keejoo Lee2Sejin Kwon3Korea Aerospace Research Institute, Daejeon 34133, Republic of KoreaKorea Institute of Machinery and Materials, Daejeon 34103, Republic of KoreaKorea Aerospace Research Institute, Daejeon 34133, Republic of KoreaKorea Advanced Institute of Science and Technology, Daejeon 34141, Republic of KoreaThe Korean National Space Council recently released “Mars Exploration 2045” as part of its future strategic plan. The operations for a Mars explorer can be defined based on domestically available capabilities, such as ground operations, launch, in-space transport and deep space link. Accordingly, all of our exploration scenarios start from the Naro space center, and the pathway to Mars is optimized using an objective function that minimizes the required ∆V. In addition, the entire phase of Mars orbit insertion should remain in contact with our deep space antennas, a measure that is imposed as an operational constraint. In this study, a pattern search method is adopted, as it can handle a nonlinear problem without relying on the derivatives of the objective function, and optimal trajectories are generated on a daily basis for a 15-day launch period. The robustness of this direct search method is confirmed by consistently converged solutions showing, in particular, that the ascending departure requires slightly less ∆V than the descending departure on the order of 10 m/s. Subsequently, mass estimates are made for a Mars orbiter and a kick stage to determine if the desired ∆V is achievable with our eco-friendly in-space propulsion system when launched from our indigenous launch vehicle, KSLV-II.https://www.mdpi.com/2226-4310/10/10/827Mars explorationeco-friendly propulsion systemoptimal trajectory designvelocity increment (∆V)pattern search method15-day launch period |
| spellingShingle | Su-Jin Choi Hongjae Kang Keejoo Lee Sejin Kwon A Pattern Search Method to Optimize Mars Exploration Trajectories Aerospace Mars exploration eco-friendly propulsion system optimal trajectory design velocity increment (∆V) pattern search method 15-day launch period |
| title | A Pattern Search Method to Optimize Mars Exploration Trajectories |
| title_full | A Pattern Search Method to Optimize Mars Exploration Trajectories |
| title_fullStr | A Pattern Search Method to Optimize Mars Exploration Trajectories |
| title_full_unstemmed | A Pattern Search Method to Optimize Mars Exploration Trajectories |
| title_short | A Pattern Search Method to Optimize Mars Exploration Trajectories |
| title_sort | pattern search method to optimize mars exploration trajectories |
| topic | Mars exploration eco-friendly propulsion system optimal trajectory design velocity increment (∆V) pattern search method 15-day launch period |
| url | https://www.mdpi.com/2226-4310/10/10/827 |
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