Zobrazeno 1 - 10
of 94
pro vyhledávání: '"ZHONGXI HOU"'
Publikováno v:
Drones, Vol 8, Iss 9, p 501 (2024)
Nowadays, unmanned aerial vehicles (UAVs) pose a significant challenge to air defense systems. Unmanned combat aerial vehicles (UCAVs) have been proven to be an effective method to counter the threat of UAVs in application. Therefore, maneuver decisi
Externí odkaz:
https://doaj.org/article/7b1a6eeb5aed400b9f663ff5d8d4a225
Publikováno v:
Applied Sciences, Vol 14, Iss 16, p 7030 (2024)
This article introduces a rapid interception trajectory generation algorithm tailored for the mitigation of malicious drone activities and other high-speed airborne threats. The proposed method facilitates a high degree of flexibility in defining the
Externí odkaz:
https://doaj.org/article/ce2c6b5fefb7497c96857416be45ec2e
Publikováno v:
International Journal of Aerospace Engineering, Vol 2024 (2024)
With high aerodynamic efficiency and low observable design for flying wing configuration, the control ability decreases and the flying risk increases, especially during the takeoff and landing processes for unmanned aerial vehicle (UAV). To solve the
Externí odkaz:
https://doaj.org/article/d38081d7229d4792a43c9251c8eabe8e
Publikováno v:
Aerospace, Vol 11, Iss 3, p 214 (2024)
Heterogeneous multi-UAV systems offer distinct advantages through their complementary and coordinated use of their diverse capabilities. However, this complexity poses significant challenges in task planning, particularly in considering temporal cons
Externí odkaz:
https://doaj.org/article/eb332e509ea84aa7878328d0cf3c4d09
Publikováno v:
International Journal of Aerospace Engineering, Vol 2022 (2022)
Hybrid-electric technology can be expected to improve the performance of fixed wing vertical takeoff and landing (VTOL) aircraft. In this paper, we demonstrated a method of retrofitting a single-energy propulsion system prototype with a hybrid-electr
Externí odkaz:
https://doaj.org/article/2400699a507c40959865ad23bb848582
Publikováno v:
Aerospace, Vol 9, Iss 11, p 715 (2022)
The performance of a single expansion ramp nozzle (SERN) drastically declines on over-expanded conditions. A numerical code can accurately predict nozzle performance in the over-expanded state, which is crucial for the SERN configuration design. A Re
Externí odkaz:
https://doaj.org/article/75629ad2d38f4cbb8b597f2a0c045061
Publikováno v:
Aerospace, Vol 9, Iss 10, p 547 (2022)
An energy management strategy for a series hybrid electric propulsion system designed for a fixed-wing vertical take-off and landing (VTOL) aircraft is presented in this paper. The proposed method combines an ideal operating line (IOL) and fuzzy logi
Externí odkaz:
https://doaj.org/article/3944140fb2094dfab607baddea0dea9d
Publikováno v:
IEEE Access, Vol 7, Pp 3406-3421 (2019)
Optimal periodic control is an effective technique to reduce aerodynamic heating and fuel consumption of hypersonic cruise vehicles. Herein, this optimal control problem has been solved by nonlinear programming and passed the posteriori check of opti
Externí odkaz:
https://doaj.org/article/fe2cd819650c477884f1ef2a021add0e
Publikováno v:
IEEE Access, Vol 7, Pp 56480-56491 (2019)
In the design of hypersonic cruise vehicles, great effort is demanded to improve the performances of subsystems, namely structure, aerodynamics, and propulsion. Herein, effort demanded to realize a subsystem performance is quantified by technical mer
Externí odkaz:
https://doaj.org/article/d6278820adec4e8ba16011ed14498d78
Publikováno v:
IEEE Access, Vol 7, Pp 42081-42093 (2019)
A novel waverider design methodology is proposed with a variable shock angle based on the osculating cones' theory. The expected shape with special requirements can be generated by arranging the distribution of shock angle using the new method. Contr
Externí odkaz:
https://doaj.org/article/4d3856c65e85472fa365f057a928a514