Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Haichao Hong"'
Publikováno v:
Aerospace, Vol 11, Iss 10, p 858 (2024)
Utilizing thermal updrafts shows potential for enabling long-endurance cruising of fixed-wing unmanned aerial vehicles without energy consumption. This article presents a novel online method based on sparse identification of nonlinear dynamics (SINDy
Externí odkaz:
https://doaj.org/article/bce13bef991a41baa1bbdfa2d332eed5
Autor:
Xue Zhang, Haichao Hong
Publikováno v:
Aerospace, Vol 11, Iss 8, p 670 (2024)
Advanced computational methods are being applied to address traditional guidance problems, yet research is still ongoing regarding how to utilize them effectively and scientifically. A numerical root-finding method was proposed to determine the bias
Externí odkaz:
https://doaj.org/article/e29cdb7f920e460996262ee944d74ef6
Publikováno v:
Aerospace, Vol 11, Iss 1, p 39 (2023)
The advancement of electric vertical take-off and landing (eVTOL) aircraft has expanded the horizon of urban air mobility. However, the challenge of generating precise vertical take-off and landing (VTOL) trajectories that comply with airworthiness r
Externí odkaz:
https://doaj.org/article/f1ebf37203184e5ead5e95f30df14679
Publikováno v:
IEEE Access, Vol 8, Pp 61035-61042 (2020)
In this paper, a sub-optimal trajectory optimization method is developed to generate trajectories for transition phases connecting two steady flights. Both control histories as well as the time step length that specify the trajectory for a transition
Externí odkaz:
https://doaj.org/article/abf2ae326289417dabfd94662f103472
Publikováno v:
Aerospace, Vol 8, Iss 8, p 229 (2021)
Dynamic soaring is a flight mode that uniquely enables high speeds without an engine. This is possible in a horizontal shear wind that comprises a thin layer and a large wind speed. It is shown that the speeds reachable by modern gliders approach the
Externí odkaz:
https://doaj.org/article/e64ea5d45ce14c66bab7924b7a283b31
Publikováno v:
Journal of Guidance, Control, and Dynamics. 46:1184-1196
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9445ca291d0ab5a041ae21fe79dba012
https://doi.org/10.2514/1.g007109
https://doi.org/10.2514/1.g007109
Publikováno v:
Journal of Guidance, Control, and Dynamics. 46:970-977
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4eeec664bcd72e103cb397948ba2e188
https://doi.org/10.2514/1.g007037
https://doi.org/10.2514/1.g007037
Publikováno v:
Journal of Guidance, Control, and Dynamics. 45:1385-1398
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f50b24d9f8eb7de2f7bb14a0e6d7de2
https://doi.org/10.2514/1.g006383
https://doi.org/10.2514/1.g006383
Publikováno v:
Chinese Journal of Aeronautics. 35:19-29
Harvesting wind energy is promising for extending long-endurance flights, which can be greatly facilitated by a flight technique called dynamic soaring. The presented study is concerned with generating model-based trajectories with smooth control his
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9240d3e6d6e2d25459fd6484b7f9ee89
https://doi.org/10.1016/j.cja.2021.09.012
https://doi.org/10.1016/j.cja.2021.09.012
Publikováno v:
Chinese Journal of Aeronautics. 35:55-66
This study is dedicated to the development of a direct optimal control-based algorithm for trajectory optimization problems that accounts for the closed-loop stability of the trajectory tracking error dynamics already during the optimization. Consequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2efb119f05009ecfb97c2e31538c8ad
https://doi.org/10.1016/j.cja.2021.10.031
https://doi.org/10.1016/j.cja.2021.10.031