A Two-Level Optimization Method for Hypersonic Periodic Cruise Trajectory
Periodic cruise has the potential to improve the fuel-saving efficiency of hypersonic cruise vehicle but is difficult to optimize. In this paper, a two-level optimization method for the trajectory of periodic cruise is proposed. Due to that the periodic cruise trajectory can be divided into an accel...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9975007 |
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| _version_ | 1832546016446906368 |
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| author | Hesong Li Yi Wang Yunfan Zhou Shangcheng Xu Dan Su |
| author_facet | Hesong Li Yi Wang Yunfan Zhou Shangcheng Xu Dan Su |
| author_sort | Hesong Li |
| collection | DOAJ |
| description | Periodic cruise has the potential to improve the fuel-saving efficiency of hypersonic cruise vehicle but is difficult to optimize. In this paper, a two-level optimization method for the trajectory of periodic cruise is proposed. Due to that the periodic cruise trajectory can be divided into an acceleration phase where engine works and a glide phase where engine is off, the two-level optimization method is proposed to optimize the trajectory in each phase by the corresponding level. In the first level, Downhill Simplex Method (DSM) is employed to find an optimal angle of attack in the acceleration phase. Subsequently, the optimal trajectory in glide phase is obtained by the Pseudo-Spectral Method (PSM) in the second optimization level. Numerical results demonstrate the effectiveness of the proposed method. Finally, through comparing with steady-state cruise, it is concluded that periodic cruise makes full use of the change of atmospheric density and lift-drag ratio; thus, fuel saving is achieved. |
| format | Article |
| id | doaj-art-c59ab72c5cd14541a1a0f48f96da5db1 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-c59ab72c5cd14541a1a0f48f96da5db12025-02-03T07:24:12ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742021-01-01202110.1155/2021/99750079975007A Two-Level Optimization Method for Hypersonic Periodic Cruise TrajectoryHesong Li0Yi Wang1Yunfan Zhou2Shangcheng Xu3Dan Su4College of Aerospace Science, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science, National University of Defense Technology, Changsha 410073, ChinaPeriodic cruise has the potential to improve the fuel-saving efficiency of hypersonic cruise vehicle but is difficult to optimize. In this paper, a two-level optimization method for the trajectory of periodic cruise is proposed. Due to that the periodic cruise trajectory can be divided into an acceleration phase where engine works and a glide phase where engine is off, the two-level optimization method is proposed to optimize the trajectory in each phase by the corresponding level. In the first level, Downhill Simplex Method (DSM) is employed to find an optimal angle of attack in the acceleration phase. Subsequently, the optimal trajectory in glide phase is obtained by the Pseudo-Spectral Method (PSM) in the second optimization level. Numerical results demonstrate the effectiveness of the proposed method. Finally, through comparing with steady-state cruise, it is concluded that periodic cruise makes full use of the change of atmospheric density and lift-drag ratio; thus, fuel saving is achieved.http://dx.doi.org/10.1155/2021/9975007 |
| spellingShingle | Hesong Li Yi Wang Yunfan Zhou Shangcheng Xu Dan Su A Two-Level Optimization Method for Hypersonic Periodic Cruise Trajectory International Journal of Aerospace Engineering |
| title | A Two-Level Optimization Method for Hypersonic Periodic Cruise Trajectory |
| title_full | A Two-Level Optimization Method for Hypersonic Periodic Cruise Trajectory |
| title_fullStr | A Two-Level Optimization Method for Hypersonic Periodic Cruise Trajectory |
| title_full_unstemmed | A Two-Level Optimization Method for Hypersonic Periodic Cruise Trajectory |
| title_short | A Two-Level Optimization Method for Hypersonic Periodic Cruise Trajectory |
| title_sort | two level optimization method for hypersonic periodic cruise trajectory |
| url | http://dx.doi.org/10.1155/2021/9975007 |
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