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Analysis of vibrations of an innovative civil tiltrotor
Aerospace Science and Technology, 2013Abstract This paper presents the assessment of vibratory levels of the tiltrotor ERICA. It is the result of a joint activity of University Roma Tre rotorcraft group and AgustaWestland, within the European Integrated Project NICETRIP. The loads transmitted by the wing to the fuselage are evaluated by a wing–pylon–proprotor aeroelastic model which ...
GENNARETTI, MASSIMO +5 more
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Multi-Body Analysis of a Tiltrotor Configuration
Nonlinear Dynamics, 1999The paper describes the aeroelastic analysis of a tiltrotor configuration. The 1/5 scale wind tunnel semispan model of the V-22 tiltrotor aircraft is considered. The analysis is performed by means of a multi-body code, based on an original formulation. The differential equilibrium problem is stated in terms of first order differential equations.
GHIRINGHELLI, GIANLUCA +3 more
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Mathematical modeling and control of a tiltrotor UAV
2016 IEEE International Conference on Information and Automation (ICIA), 2016The tiltrotor Unmanned Aerial Vehicle (UAV) attracts increasing concern due to the ability of vertical take-off and land and high-speed cruise. In this study, a tiltrotor UAV with three rotors is built. A dynamic inversion based control system adopting time-scale separation design is developed for the proposed tiltrotor UAV simulation model in rotor ...
Chao Chen +3 more
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Autonomous Heavy Object Pushing Using a Coaxial Tiltrotor
IEEE Transactions on Automation Science and EngineeringAerial physical interaction (APhI) with a multirotor-based platform such as pushing a heavy object demands generation of a sufficiently large interaction force while maintaining the stability.
Sunwoo Hwang +3 more
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Development of Practical Tiltrotor UAV
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2012A Practical Tiltrotor UAV (PTUAV) has been developed and flight tests are under way. The PTUAV was motivated to pursue low cost and high performance while the full-scale tiltrotor UAV development experience was reflected. The PTUAV was targeted to develop a UAV system which has capabilities of VTOL and faster-than-helicopter forward speed with ...
Seong Wook Choi +3 more
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A Robust H∞ Adaptive Feedforward Controller Method for Tiltrotor Aircraft/Turboshaft Engine System
IEEE Transactions on Aerospace and Electronic SystemsThe problem of feedforward control for the Tiltrotor Aircraft/Turboshaft Engine System is addressed by proposing a robust H∞ adaptive feedforward control method.
Shancheng Li +3 more
semanticscholar +1 more source
Aircraft Engineering and Aerospace Technology, 1988
ROLLED out in May and scheduled to make its first flight in November is the V‐22 Osprey tiltrotor multi‐mission aircraft that has been ordered by four United States Services. Technological advances incorporated in the V‐22 had their beginnings in the XV‐3 in the mid 1950's which proved the feasibility of the tiltrotor concept and in the 1970's the XV ...
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ROLLED out in May and scheduled to make its first flight in November is the V‐22 Osprey tiltrotor multi‐mission aircraft that has been ordered by four United States Services. Technological advances incorporated in the V‐22 had their beginnings in the XV‐3 in the mid 1950's which proved the feasibility of the tiltrotor concept and in the 1970's the XV ...
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The Physics of Fluids
This study presents a numerical analysis of the aerodynamic and aeroacoustic behavior of a full-configuration tiltrotor aircraft during transition flight.
Sangmin Son +4 more
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This study presents a numerical analysis of the aerodynamic and aeroacoustic behavior of a full-configuration tiltrotor aircraft during transition flight.
Sangmin Son +4 more
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Agile and Precise Attitude Control of Tiltrotor Aircraft in Transition Flight
IEEE Transactions on Intelligent VehiclesA tiltrotor aircraft (TRA) can both hover in the air (hover flight state) and cruise quickly (level flight state). Transition flight is a transitional state between these two flight states, during which tiltable rotors rotate, forming a unique state for ...
Hangxian Liu +3 more
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A wake bending unsteady dynamic inflow model of tiltrotor in conversion flight of tiltrotor aircraft
Science in China Series E: Technological Sciences, 2009The aerodynamics, dynamic responses and aeroelasticity of tiltrotor aircraft in the tilting of rotor i.e. in conversion flight are extraordinarily complicated. The traditional quasi-steady assumption model can not reflect the unsteady aerodynamic problems in the tilting of rotor.
HaiLong Yue, PinQi Xia
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