Results 21 to 30 of about 2,332 (184)

Tiltrotor CFD part I: validation [PDF]

open access: yes, 2017
This paper presents performance analyses of the model-scale ERICA and TILTAERO tiltrotors and of the full-scale XV-15 rotor with high-fidelity computational fluids dynamics.
Barakos, George N.   +2 more
core   +1 more source

Tiltrotor CFD part II: aerodynamic optimisation of tiltrotor blades [PDF]

open access: yes, 2017
This paper presents aerodynamic optimisation of tiltrotor blades with high-fidelity computational fluid dynamics. The employed optimisation framework is based on a quasi-Newton method, and the required high-fidelity flow gradients were computed using a
Barakos, G.N.   +5 more
core   +1 more source

Aeroelastic Tailoring of the Next Generation Civil Tiltrotor Technological Demonstrator Composite Wing

open access: yesAerospace, 2022
The tiltrotor wing structure is one of the most critical and heavily investigated structures in design due to the fundamental need to consider the interactions between the wing, pylon, and rotor systems to achieve aircraft aeroelastic stability.
Aniello Daniele Marano   +8 more
doaj   +1 more source

Integration of Sensors in Control and Automation Systems 2020

open access: yes, 2022
Journal of Sensors, Volume 2022, Issue 1, 2022.
Rafael Morales   +3 more
wiley   +1 more source

Design and Implementation of a Hardware‐in‐the‐Loop Simulation System for a Tilt Trirotor UAV

open access: yesJournal of Advanced Transportation, Volume 2020, Issue 1, 2020., 2020
The tilt trirotor unmanned aerial vehicle (UAV) is a novel aircraft that has broad application prospects in transportation. However, the development progress of the aircraft is slow due to the complicated control system and the high cost of the flight experiment.
Li Yu   +5 more
wiley   +1 more source

Mathematical Modeling and Modal Switching Control of a Novel Tiltrotor UAV

open access: yesJournal of Robotics, 2018
This paper concentrates on the flight control of a novel tiltrotor aircraft with fixed wings. This kind of aircraft has two flight modes and a transition mode.
Zhiwei Kong, Qiang Lu
doaj   +1 more source

The Feasibility Assessment Study of Bridge Crack Width Recognition in Images Based on Special Inspection UAV

open access: yesAdvances in Civil Engineering, Volume 2020, Issue 1, 2020., 2020
Bridge defects are important indicator for the bridge safety assessment. Considering the cost and inefficiency of the traditional method, the UAV system applied for bridge crack inspection is a better choice. Therefore, we have configured a bridge inspection UAV system with SLR camera, laser rangefinder.
Xiong Peng   +5 more
wiley   +1 more source

An Innovative Control Allocation Framework for a Novel Tiltrotor Aircraft

open access: yesIEEE Access, 2020
Control allocation is still a challenge for tiltrotor aircraft due to effectors' redundancy, dramatic nonlinearities and cross-coupling. Besides this, the external disturbance caused by the unique configuration of tiltrotor such as larger wing area and ...
Yifan Xu, Qian Zhang, Zelong Yu
doaj   +1 more source

A Comparative Study of a Hybrid Experimental–Statistical Energy Analysis Model with Advanced Transfer Path Analysis for Analyzing Interior Noise of a Tiltrotor Aircraft

open access: yesApplied Sciences, 2023
The excessive noise present within an aircraft cabin during flight operations constitutes a notable origin of fatigue, stress, and communication impediments for both pilots and passengers.
Shahin Sohrabi   +5 more
doaj   +1 more source

Research on Innovative Trim Method for Tiltrotor Aircraft Take‐Off Based on Genetic Algorithm

open access: yesJournal of Sensors, Volume 2020, Issue 1, 2020., 2020
Tiltrotor aircraft possesses redundant actuators in take‐off phase and its flight control is more complicated than ordinary aircraft because the structural and dynamic characteristics keep changing due to tilting rotors. One of the fundamental bases for flight control is trim, which provides steady flight states under various conditions and then ...
Xueyun Wang   +5 more
wiley   +1 more source

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