Analysis of the influence of transition state control strategy on structural load of quad-tiltrotor
Hangkong gongcheng jinzhanThere are complex structural load changes in the rotor during the tilt-transition of quad-tiltrotor aircraft,which can directly affect the life of the rotor.
HE Yongtao +3 more
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Impacts of technology on the capacity needs of the US national airspace system [PDF]
A review of the U.S. air transportation system is undertaken, focusing on airspace and airport capacity. Causes of delay and congestion are investigated. Aircraft noise is identified as the fundamental hindrance to capacity improvement.
Ausrotas, Raymond A., Simpson, Robert W.
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Flybbit: Design and Control of a Novel Rabbit-like Flying Robot
DronesIn this paper, we present the design and control of a novel aerial vehicle inspired by the biomechanics of a rabbit named “Flybbit”. Flybbit consists of two main components, namely a movable “Ears” part and a rigid “Body” part, forming a composite flying
Chenyang Sun +5 more
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A comparative analysis of XV-15 tiltrotor hover test data and WOPWOP predictions incorporating the fountain effect [PDF]
Acoustic measurements from a hovering full scale XV-15 tilt rotor with the advanced technology blades are presented which show the directionality of fountain effect noise.
Coffen, Charles D. +2 more
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Multi-Fidelity Aerodynamic Optimization of the Wing Extension of a Tiltrotor Aircraft
Applied SciencesGiven the fast-evolving context of electrical vertical takeoff and landing vehicles (eVTOL) based on the concept of tiltrotor aircraft, this work describes a framework aimed at the preliminary aerodynamic design and optimization of innovative lifting ...
Alberto Savino
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Acoustic Testing of the Bell 699 Rotor on the Tiltrotor Test Rig (TTR) in the National Full-Scale Aerodynamics Complex 40- by 80- Foot Wind Tunnel in Conversion and Airplane Configuration [PDF]
The Tiltrotor Test Rig (TTR) provides new proprotor testing capabilities to the National Aeronautics and Space Administration (NASA) and the Department of Defense (DoD).
Schatzman, Natasha, Shelts, Kelly
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Regional Air Transport in Europe: The Potential Role of the Civil Tiltrotor in Reducing Airside Congestion [PDF]
, 2006 The volume of air traffic worldwide is still in constant growth despite unfair events that sometimes occur. The demand for regional air transport is also increasing, thanks in part to the use of new vehicles purposely designed for short range flights ...
Capri, Salvatore +3 more
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, 2013 Mars has been an active planet for space exploration since the 1960s. The future Mars missions, such as searching for life, could be accomplished by the technique up to date, but the Martian aerobots allow a longer range and a lower altitude compared with rovers and orbiters, respectively.
openaire +2 more sources
Wing–Pilot Vertical Bounce in Tiltrotors
Journal of Guidance, Control, and Dynamics, 2018 The basic mechanism of the vertical bounce in tiltrotors in hovering flight is discussed. This rotorcraft–pilot coupling phenomenon arises when the pilot’s biomechanics interact with the airframe e...
Muscarello, Vincenzo, Quaranta, Giuseppe
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Airloads and Wake Geometry Calculations for an Isolated Tiltrotor Model in a Wind Tunnel [PDF]
, 2001 Comparisons of measured and calculated aerodynamic behavior of a tiltrotor model are presented. The test of the Tilt Rotor Aeroacoustic Model (TRAM) with a single, 0.25-scale V-22 rotor in the German-Dutch Wind Tunnel (DNW) provides an extensive set of ...
Johnson, Wayne
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