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Published๏ผš2026/1/8 13:45:05

๐Ÿš€ ๆœˆๆŽขๆŸปใ‚’็ˆ†้€Ÿ๏ผˆใฐใใฏใ‚„๏ผ‰ใซใ™ใ‚‹้ญ”ๆณ•๐Ÿง™โ€โ™€๏ธ๏ผ

่ถ…่ฆ็ด„๏ผš ๆœˆใฎๅ‘จใ‚Šใ‚’่ณขใ็งปๅ‹•๐Ÿš€๏ผ็‡ƒๆ–™ใ‚ซใƒƒใƒˆใงใ€ใƒŸใƒƒใ‚ทใƒงใƒณๆˆๅŠŸ็އ็ˆ†ไธŠใ’ใ‚’็›ฎๆŒ‡ใ™็ ”็ฉถใ ใ‚ˆ๐Ÿ’–

โœจ ใ‚ฎใƒฃใƒซ็š„ใ‚ญใƒฉใ‚ญใƒฉใƒใ‚คใƒณใƒˆ โœจ โ— ็‡ƒๆ–™็ฏ€็ด„ใงใ‚ณใ‚นใƒˆใƒ€ใ‚ฆใƒณ๐Ÿ’ธ๏ผๅฎ‡ๅฎ™ๆ—…่กŒใŒ่บซ่ฟ‘ใซใชใ‚‹ใ‹ใ‚‚๐Ÿ˜ โ— ่ปŒ้“๏ผˆใใฉใ†๏ผ‰ใ‚’่‡ช็”ฑ่‡ชๅœจใซใƒ‡ใ‚ถใ‚คใƒณ๐ŸŽจ๏ผใƒŸใƒƒใ‚ทใƒงใƒณใฎๅน…ใŒๅบƒใŒใ‚‹ไบˆๆ„Ÿโœจ โ— ๆœ€ๆ–ฐITๆŠ€่ก“๏ผˆDAๆณ•ใจใ‹๏ผ‰ใงใ€่จˆ็ฎ—ใŒ่ถ…ใ‚นใƒ ใƒผใ‚บใซใชใ‚‹ใ‚‰ใ—ใ„๐Ÿ’ป๏ผ

๐ŸŒŸ ่ฉณ็ดฐ่งฃ่ชฌ ๐ŸŒŸ โ— ่ƒŒๆ™ฏ ๆœˆๆŽขๆŸป๏ผˆใ’ใคใŸใ‚“ใ•๏ผ‰ใƒ–ใƒผใƒ ๅ†ๆฅ๐Ÿ’–๏ผNASAใจใ‹ไธญๅ›ฝใ‚‚ๆœˆใซ่กŒใใŸใ„ใฟใŸใ„๐Ÿš€ใ€‚ใงใ‚‚ใ€็‡ƒๆ–™๏ผˆใญใ‚“ใ‚Šใ‚‡ใ†๏ผ‰ใ‚ใฃใกใ‚ƒไฝฟใ†ใจๅคงๅค‰ใ˜ใ‚ƒใ‚“๏ผŸ๐Ÿ˜ฉใใ“ใงใ€็‡ƒๆ–™ใ‚’็ฏ€็ด„ใ—ใชใŒใ‚‰ใ€่‰ฒใ‚“ใช่ปŒ้“๏ผˆใใฉใ†๏ผ‰ใซ่กŒใ‘ใ‚‹ๆ–นๆณ•ใ‚’ๆŽขใ—ใฆใ‚‹ใ‚“ใ ใฃใฆ๐ŸŽต

โ— ๆ–นๆณ• ๅฎ‡ๅฎ™ๆฉŸใฎ่‡ช็„ถใชๅ‹•ใ๏ผˆๅผพ้“ๆ•็ฒใ€BC๏ผ‰ใจใ€่‰ฒใ‚“ใช่ปŒ้“๏ผˆDROใจใ‹๏ผ‰ใ‚’็ต„ใฟๅˆใ‚ใ›ใ‚‹ใ‚“ใ ใฃใฆ๏ผ้›ฃใ—ใ„่จˆ็ฎ—ใฏใ€DAๆณ•ใฃใฆใ„ใ†ใ‚นใ‚ดใ‚คๆŠ€่ก“ใง่งฃๆฑบ๐Ÿ˜Žโœจ๏ผ่จˆ็ฎ—็ฒพๅบฆ๏ผˆใ›ใ„ใฉ๏ผ‰ใ‚‚ไธŠใŒใ‚‹ใ‹ใ‚‰ใ€ใƒŸใƒƒใ‚ทใƒงใƒณใฎๆˆๅŠŸ็އใ‚‚ใ‚ขใƒƒใƒ—โคด๏ธ๏ผ

็ถšใใฏใ€Œใ‚‰ใใ‚‰ใ่ซ–ๆ–‡ใ€ใ‚ขใƒ—ใƒชใง

Optimization of Transfers linking Ballistic Captures to Earth-Moon Periodic Orbit Families

Lorenzo Ano\`e / Roberto Armellin / Jack Yarndley / Thomas Caleb / St\'ephanie Lizy-Destrez

The design of transfers to periodic orbits in the Earth-Moon system has regained prominence with NASA's Artemis and CNSA's Chang'e programs. This work addresses the problem of linking ballistic capture trajectories - exploiting multi-body dynamics for temporary lunar orbit insertion - with bounded periodic motion described in the circular restricted three-body problem (CR3BP). A unified framework is developed for optimizing bi-impulsive transfers to families of periodic orbits via a high-order polynomial expansion of the CR3BP dynamics. That same expansion underlies a continuous parameterization of periodic orbit families, enabling rapid targeting and analytic sensitivity. Transfers to planar periodic orbit families - such as Lyapunov L1/L2 and distant retrograde orbits (DROs) - are addressed first, followed by extension to spatial families - such as butterfly and halo L1/L2 orbits - with an emphasis towards near-rectilinear halo orbits (NRHOs). Numerical results demonstrate low-{\Delta}v solutions and validate the method's adaptability for designing lunar missions. The optimized trajectories can inform an established low-energy transfer database, enriching it with detailed cost profiles that reflect both transfer feasibility and underlying dynamical relationships to specific periodic orbit families. Finally, the proposed transfers provide reliable estimates for rapid refinement, making them readily adaptable for further optimization across mission-specific needs.

cs / astro-ph.EP / cs.NA / math.DS / math.NA / math.OC