Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jiulong Xu"'
Publikováno v:
Sensors, Vol 24, Iss 23, p 7639 (2024)
The challenge of search inefficiency arises when multiple UAV swarms conduct dynamic target area searches in unknown environments. The primary sources of this inefficiency are repeated searches in the target region and the dynamic motion of targets.
Externí odkaz:
https://doaj.org/article/9734fb8232a149bda22d4b47ae1e7be9
Unsteady aerodynamic characteristics of a bionic flapping wing in three-dimensional composite motion
Publikováno v:
AIP Advances, Vol 12, Iss 1, Pp 015109-015109-15 (2022)
Owing to continual advances in computational fluid dynamics, simulations of fluids have emerged as an important means of analyzing the aerodynamic characteristics of flapping-wing flight. This study establishes an aerodynamic model of bionic flapping
Externí odkaz:
https://doaj.org/article/7160f08baebb4a3192babc397e808c1a
Publikováno v:
Sensors, Vol 22, Iss 24, p 9572 (2022)
Aiming at the problem that the single sensor of the coaxial UAV cannot accurately measure attitude information, a pose estimation algorithm based on unscented Kalman filter information fusion is proposed. The kinematics and dynamics characteristics o
Externí odkaz:
https://doaj.org/article/842f797bf28143f184662c4abff05dc0
Publikováno v:
AIP Advances, Vol 10, Iss 10, Pp 105108-105108-11 (2020)
Birds in nature adjust the shape of their wings in time according to the change in wind resistance to achieve the purpose of increasing lift and reducing drag, thereby achieving higher flight efficiency. Aiming at the aerodynamic change caused by the
Externí odkaz:
https://doaj.org/article/f76e660dae7741d4ad60045e597f5148
Publikováno v:
AIP Advances, Vol 10, Iss 3, Pp 035109-035109-13 (2020)
Numerical simulations of the unsteady aerodynamic characteristics of the flapping wing composite motion are performed. To avoid negative grid sizes arising with the use of a dynamic grid and leading to divergences in the simulation and to errors in t
Externí odkaz:
https://doaj.org/article/ccd82259fa424fb6b145f040887fccec
Publikováno v:
Aerospace, Vol 8, Iss 11, p 337 (2021)
In view of the uncertainty of model parameters, the influence of external disturbances and sensor noise on the flight of coaxial rotor aircraft during autonomous flight, a robust backstepping sliding mode control algorithm for the position and attitu
Externí odkaz:
https://doaj.org/article/c2ba65798b3d4e5bae02461f64229045
Publikováno v:
Micromachines, Vol 9, Iss 7, p 319 (2018)
The focal lengths of the sub-eyes in a single-layer uniform curved compound eye are all the same, resulting in poor imaging quality for the compound eye. A non-uniform curved compound eye can effectively solve the problem of poor edge-imaging quality
Externí odkaz:
https://doaj.org/article/ed5dcf92e69b4c0cb1fa05798a209614
Publikováno v:
2022 2nd International Conference on Algorithms, High Performance Computing and Artificial Intelligence (AHPCAI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd6046968037deff85aba298da4a1610
https://doi.org/10.1109/ahpcai57455.2022.10087586
https://doi.org/10.1109/ahpcai57455.2022.10087586
Publikováno v:
Journal of Physics: Conference Series. 2252:012052
Aiming at the short endurance time of micro-rotor UAV, based on the analysis of the structural characteristics and the working principle of rotor UAV, a design scheme of foldable quad-rotor UAV based on c is proposed. The feasibility of cascade PID c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d51193ddf2c008c2f2f20c5c072a18f
https://doi.org/10.1088/1742-6596/2252/1/012052
https://doi.org/10.1088/1742-6596/2252/1/012052
Publikováno v:
2019 IEEE International Conference on Unmanned Systems (ICUS).
This paper studies the aerodynamic characteristics of the composite motion of the wing during the flight of the bionic flapping wing. The dynamic hybrid mesh technique is used to solve the Nave Stokes (N-S) equation, and the changes of the lift resis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a18550721f257056d2563a3b1e0d0ab0
https://doi.org/10.1109/icus48101.2019.8995973
https://doi.org/10.1109/icus48101.2019.8995973