Results 11 to 20 of about 123 (110)
Assessment of a Mid-Fidelity Numerical Approach for the Investigation of Tiltrotor Aerodynamics
Applied Sciences, 2021 The study of the complex aerodynamics that characterise tiltrotors represents a challenge for computational fluid dynamics tools. URANS numerical solvers are typically used to explore the aerodynamic features that characterise the different flight ...
Alex Zanotti +4 more
doaj +1 more source
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 Large‐slenderness‐ratio aircraft in which a large portion of the aircraft’s mass is concentrated along its centreline face the problem of severe lateral‐directional coupling. Previous research has not fully considered the inertia product when conducting stability analyses of such aircraft. However, neglecting the inertia product may threaten the safety
Huitao Lyu +5 more
wiley +1 more source
Advances in Meteorology, Volume 2022, Issue 1, 2022., 2022 This study applies a novel cloud seeding method using an unmanned aerial vehicle (UAV) and a research aircraft in Korea. For this experiment, the UAV sprayed a cloud seeding material (calcium chloride), and the aircraft monitored the clouds in the southern part of the Korean Peninsula on April 25, 2019.
Woonseon Jung +10 more
wiley +1 more source
Hybrid Adaptive Control for Tiltrotor Aircraft Flight Control Law Reconfiguration
Aerospace, 2023 Tiltrotor aircrafts have both fixed-wing control surfaces and helicopter rotors for attitude control. The redundancy of control surfaces provides the possibility for the control system to reconfigure the control law when actuator faults occur during ...
Jiayu Wen +4 more
doaj +1 more source
Modeling and Design of an Aircraft‐Mode Controller for a Fixed‐Wing VTOL UAV
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 Vertical takeoff and landing (VTOL) is an essential feature of unmanned aerial vehicles (UAVs). On the one hand, VTOL can expand and enhance the applications of UAVs; yet, on the other hand, it makes the design of control systems for UAVs more complicated.
Zhao Deng +3 more
wiley +1 more source
Whirl Flutter Suppression of Tiltrotor Aircraft Using Actively Controlled Aileron
Aerospace, 2022 Whirl flutter of a tiltrotor aircraft is a complex aeroelastic phenomenon and it can result in catastrophic consequences. The deflection of an aileron mounted on a wing has the potential to solve this fatal problem.
Linghua Dong, Qiyu Li
doaj +1 more source
Development of a multipurpose test rig and validation of an innovative rotorcraft vertical tail - TAILTEST [PDF]
MATEC Web of Conferences, 2021 TAILTEST 9th call of the CS2 project started in the 2019 year is aimed at the development of a multipurpose test rig for validation of an innovative rotorcraft vertical tail.
Horak Vaclav
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Mathematical Modeling and Stability Analysis of Tiltrotor Aircraft
Drones, 2022 The key problem in the development process of a tiltrotor is its mathematical modeling. Regarding that, this paper proposes a dividing modeling method which divides a tiltrotor into five parts (rotor, wing, fuselage, horizontal tail, and vertical fin ...
Hanlin Sheng, Chen Zhang, Yulong Xiang
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Integration of Sensors in Control and Automation Systems 2020
, 2022 Journal of Sensors, Volume 2022, Issue 1, 2022.
Rafael Morales +3 more
wiley +1 more source
Aerodynamic Interference on Trim Characteristics of Quad-Tiltrotor Aircraft
Aerospace, 2022 The aerodynamic interference between the different components of quad-tiltrotor (QTR) aircraft were considered to analyze its influence on trim characteristics.
Pan Zhou +3 more
doaj +1 more source