Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Dengyan DUAN"'
Publikováno v:
Aerospace, Vol 11, Iss 6, p 463 (2024)
To enhance the performance of rigid coaxial rotors across both hovering and high-speed cruising conditions, this study develops a novel aerodynamic optimization method that differentiates between the upper and lower rotors. Utilizing the lifting line
Externí odkaz:
https://doaj.org/article/e72175893a064e3b821300be9d9a7c43
Publikováno v:
IEEE Access, Vol 8, Pp 165432-165443 (2020)
With the popularity of electric multi-rotor unmanned aerial vehicles (EMRUAV), the problem of low efficiency of the motor propeller system (MPS) becomes serious especially for EMRUAVs which have multiple working states. To solve this problem, an inte
Externí odkaz:
https://doaj.org/article/239cc59d6a884baabab1a176cf81b68c
Autor:
Zhichao Lyu, Zhigang Wang, Dengyan Duan, Lili Lin, Jianbo Li, Yongwen Yang, Yonghong Chen, Yibo Li
Publikováno v:
IEEE Access, Vol 8, Pp 140777-140791 (2020)
The tilt quad rotor (TQR) has the problem of manipulation redundancy due to the aerodynamic structure changing in conversion mode. The tilting path is limited by the conversion corridor. In order to solve the problem of manipulation redundancy in con
Externí odkaz:
https://doaj.org/article/4b9d5277695b4084bd2a58b70a83483e
Publikováno v:
IEEE Access, Vol 7, Pp 177219-177240 (2019)
The quad tilt rotor (QTR) has complex dynamics characteristics, and the environmental factors have a great influence on it. This increases the difficulty of its control especially in transition mode. To solve this problem, the design of the controlle
Externí odkaz:
https://doaj.org/article/dadcc84c3cac43e9bf387de57aea8cf3
Publikováno v:
Chinese Journal of Aeronautics. 36:268-285
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ad144696df21f8d6877a74ac5a75388
https://doi.org/10.1016/j.cja.2023.01.001
https://doi.org/10.1016/j.cja.2023.01.001
Publikováno v:
AIAA Journal. Sep2023, Vol. 61 Issue 9, p4079-4095. 17p.
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 236:2803-2816
The interference calculation is essential to the flight dynamic analysis especially for multi-rotors configurations. To analyze the flight dynamic characteristics of a small tandem helicopter precisely, a vortex method is utilized to obtain the aerod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d4b51b1d226eea9b4521e8b83f6e1e8
https://doi.org/10.1177/09544100211069418
https://doi.org/10.1177/09544100211069418
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 236:671-684
To achieve the three-dimensional free movement of the slung load, a load-leading hierarchical control strategy has been adopted recently which divides the cooperative multi-lift system into a load layer, a cable layer, and an aircraft layer. But ther
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::751d450a3b12c021a6f397464503d4f5
https://doi.org/10.1177/09544100211018108
https://doi.org/10.1177/09544100211018108
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 235:1803-1816
Unmanned helicopters are widely used in military and civil fields. One of the most important applications is flying with an underslung load, but the pendulum-like behavior of the load can cause damage or even forced landing to the helicopter. To solv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce3e4b611c84d9a5d47bec99fcf6a3e2
https://doi.org/10.1177/0954410020985157
https://doi.org/10.1177/0954410020985157
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 235:1474-1487
Quad tilt-rotor(QTR) UAV is a nonlinear time-varying system in full flight mode. It is difficult and inaccurate to model the nonlinear time-varying system, which cannot fully reflect the problem of controlling input and system response output in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a583e04863cc6a7c39abc202f54b560
https://doi.org/10.1177/0954410020976598
https://doi.org/10.1177/0954410020976598