Results 181 to 190 of about 10,092 (210)

Optimising handling qualities for tilt rotor aircraft

2023
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Modeling and Dynamic Exploration of a Tilt-Rotor VTOL Aircraft

IFAC Proceedings Volumes, 2010
Abstract In this paper we introduce and study a novel model of a Tilt-Rotor VTOL aircraft. The aircraft is structured as a blended wing body equipped with a tilting rotor (the propulsion unit) that gives the vehicle the capability of vertical take off and transition to a forward flight configuration.
G. Notarstefano, J. Hauser
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Approach Guidance Logic for a Tilt-Rotor Aircraft

Journal of Guidance and Control, 1978
The distinctive feature of a tilt-rotor aircraft is that the pilot can change the rotor mast angles to go from a helicopter configuration for take-off and landing to an airplane configuration for high cruise speeds and vice-versa. An approach path for such an aircraft is proposed and the logic required to fly along this path in the presence of wind is ...
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Study on the effect of tilting-rotor structure on the lift of small tilt rotor aircraft

2017 2nd International Conference on Advanced Robotics and Mechatronics (ICARM), 2017
In this paper, the influence of the tilting-rotor structure parameters on the aerodynamic characteristics of a small tilt rotor unmanned aerial vehicle (UAV) is studied. The simplified model of tilt rotor unmanned aerial vehicle (UAV) is established by using SolidWorks software, and the model is divided into unstructured grid by ICEM software. Finally,
Xiang Zhang, Weiqing Xu, Yan Shi, Maolin Cai, Fengyun Li   +4 more
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Stabilizing pylon whirl flutter on a tilt-rotor aircraft

32nd Structures, Structural Dynamics, and Materials Conference, 1991
The pylon whirl flutter speed of a tilt-rotor aircraft is increased by incorporating a multipleinput multiple-output controller. Pylon whirl flutter is modeled with a semispan wing and a three-bladed proprotor. The semispan wing has beamwise bending, chordwise bending, and torsion motion.
JOHN VORWALD, INDERJIT CHOPRA
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Certification Issues for a Tilt-Rotor Aircraft

SAE Technical Paper Series, 1987
<div class="htmlview paragraph">Powered-lift aircraft, such as the V-22 tilt-rotor, are likely to spin-off a civil version. The present FAA airworthiness certification standards are not considered to be adequate for these unique aircraft. The FAA has drafted certification criteria and held a public conference to review the draft and identify ...
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Adaptive Model Inversion Flight Control for Tilt-Rotor Aircraft

Journal of Guidance, Control, and Dynamics, 1999
Neural network augmented model inversion control is used to provide a civilian tiltrotor aircraft with consistent response characteristics throughout its operating envelope, including conversion flight. The implemented response type is Attitude Command Attitude Hold in the longitudinal channel.
Rolf T. Rysdyk, Anthony J. Calise
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LONGITUDINAL STABILITY AND CONTROL OF LARGE TILT-ROTOR AIRCRAFT

IFAC Proceedings Volumes, 2007
Abstract Tilt-rotor aircraft combine the advantages of helicopters (i.e. ability to take-off and land in confined spaces and to hover and loiter at low speed) with the high speed and economy of turbo-props. The paper reports on the modelling and longitudinal control of a large tilt-rotor aircraft.
D.J. Walker, P. Perfect
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Self-Scheduled and Robust Control for Tilt Rotor Aircraft

Applied Mechanics and Materials, 2014
A kind of self-scheduled and robust control algorithm for the conversion mode of tilt rotor aircraft is proposed in this paper. The mathematical model of the aircraft is established by modeling each component and combining. Then the conversion corridor is obtained by trim results.
Yu Yan Cao, Xin Min Wang, Cheng Peng
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Design and Modeling of VTOL Tri Tilt-rotor Aircraft

2018 15th International Conference on Smart Cities: Improving Quality of Life Using ICT & IoT (HONET-ICT), 2018
Rotary wing aerial vehicles have the capability to vertically take-off and land (VTOL); they have better stability while hovering. On the other hand, conventional fixed wing aircrafts offer greater endurance and higher speed. This article focuses on the development of hover model of a VTOL tri- rotor aerial vehicle, with front rotors having tilting ...
Muhammad Umer, Syed Mohsin Abbas Kazmi, Syed M. Hassan Askari, Iftikhar Ahmad Rana   +3 more
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