Results 1 to 10 of about 288 (134)
Dynamic Electromagnetic Scattering Simulation of Tilt-Rotor Aircraft in Multiple Modes [PDF]
Sensors, 2023 To study the electromagnetic scattering of tilt-rotor aircraft during multi-mode continuous flight, a dynamic simulation approach is presented. A time-varying mesh method is established to characterize the dynamic rotation and tilting of tilt-rotor ...
Zhongyang Fei +4 more
doaj +4 more sources
A Dynamic RCS and Noise Prediction and Reduction Method of Coaxial Tilt-Rotor Aircraft Based on Phase Modulation [PDF]
Sensors, 2022 For tilt-rotor aircraft with coaxial rotors (coaxial rotor aircraft), reduction of radar cross section as well as acoustic noise can be essential for stealth design, and the rotation of the coaxial rotors can have an influence on noise and dynamic radar ...
Zeyang Wang +3 more
doaj +2 more sources
Aerodynamic Analysis of Rotor Spacing and Attitude Transition in Tilt-Powered Coaxial Rotor UAV [PDF]
SensorsComplex aerodynamic characteristics and optimal control during the attitude transition of tilt-powered coaxial twin-rotor unmanned aerial vehicles (UAVs) represent key challenges in flight control design.
Wei Wu +4 more
doaj +2 more sources
Thrust Vectoring Control of a Novel Tilt-Rotor UAV Based on Backstepping Sliding Model Method [PDF]
Sensors, 2023 In this paper, a control method of a novel tilt-rotor UAV with a blended wing body layout is studied. The novel UAV is capable of vertical take-off and landing and has strong stealth capabilities that can be applied to carrier-borne reconnaissance ...
Zelong Yu, Jingjuan Zhang, Xueyun Wang
doaj +2 more sources
Numerical Simulation of Continuous Tilting Transition of Tiltrotor Aircraft
Hangkong gongcheng jinzhan, 2021 The aerodynamic configuration of the tiltrotor aircraft is constantly changed during the tilting transition process, and the aerodynamic characteristics is of strongly nonlinear characteristics.Aiming at the complex states of continuous tilting ...
WU Weiwei +3 more
doaj +1 more source
The Investigation on L1 Adaptive Control of the Tilt-Rotor Aircraft
International Journal of Aerospace Engineering, 2021 Considering the uncertainty of the flight dynamics model of the tilt-rotor aircraft in different flight modes, an L1 adaptive controller for full flight modes control system of tilt-rotor aircraft is designed.
Quanlong Chen +5 more
doaj +1 more source
Effect of Rotor Tilt on the Gust Rejection Properties of Multirotor Aircraft
Drones, 2022 In order to operate safely in windy and gusty conditions, multirotor VTOL aircraft require gust resilience. This paper shows that their gust rejection properties can be improved by applying a small amount of fixed outward rotor tilt. Standard aerodynamic
James F. Whidborne +2 more
doaj +1 more source
Photonics, 2021 To study the radar characteristics of the tiltrotor aircraft when considering rotor rotation and tilting actions, a dynamic calculation method (DCM) based on physical optics and physical theory of diffraction is presented. The results show that the radar
Zeyang Zhou +3 more
doaj +1 more source
IET Networks, EarlyView., 2022 Abstract 3D scanning is rapidly becoming a key maintenance tool. Aerospace was a pioneer in adopting 3D scanning technology because aircraft manufacture and maintenance require precision. Monitoring deterioration, removing components for maintenance, and verifying covert operations are not practical or helpful without technology.
T. Nanthakumaran Thulasy +4 more
wiley +1 more source
Mathematical Modelling of Gimballed Tilt-Rotors for Real-Time Flight Simulation
Aerospace, 2020 This paper introduces a novel gimballed rotor mathematical model for real-time flight simulation of tilt-rotor aircraft and other vertical take-off and landing (VTOL) concepts, which improves the previous version of a multi-purpose rotor mathematical ...
Anna Abà +3 more
doaj +1 more source