Results 91 to 100 of about 16,873 (217)

Research on Distributed Jet Blowing Wing Based on the Principle of Fan-Wing Vortex-Induced Lift and Thrust

International Journal of Aerospace Engineering, 2019
Based on the numerical calculation and analysis of the principle of the lift and thrust of the Fan-wing. A new scheme for the wing of Fan-wing aircraft-distributed jet blowing wing was presented.
Du Siliang, Zhao Qijun, Wang Bo
doaj   +1 more source

Rotorcraft pre-design activities at DLR - Results, status and outlook - [PDF]

, 2014
The German Aerospace Center (DLR) is currently developing an integrated and automated tool for helicopter preliminary design and evaluation. To support the design process and the evaluation task, an integrated rotorcraft design and evaluation toolbox ...
Kohlgrüber, D., Lier, M., Schwinn, D., Krenik, A., Kunze, P., Lützenburger, M.   +5 more
core  

Possible Technologies For A Variable Rotor Speed Rotorcraft Drive Train

, 2016
This publication shows possible technologies to enable variable rotor speed for rotorcraft. The technologies are divided into four categories: Turbine technology, gearbox technology, electric drive train technology and rotor technology.
Weigand, Michael, Paschinger, Pierre, Amri, Hanns   +2 more
core   +1 more source

Exposing Rotorcraft Pilot Couplings using Flight Simulation

, 2013
Unmasking Aircraft and Rotorcraft Pilot Couplings (A/RPC) prior to vehicle entry into service has been a long standing challenge in the aerospace industry.
M. Jones, L. Lu, MASARATI, PIERANGELO, D. Yilmaz, M. Pavel, M. Jump, MUSCARELLO, VINCENZO, QUARANTA, GIUSEPPE   +7 more
core  

The modernization of civil rotorcraft certification system in Korea [PDF]

, 2020
The ROK MND have successfully developed two types of military helicopters in last two decades, in cooperation with Airbus Helicopters. Though these rotorcrafts were basically developed to conduct various tactical duties, their civil derivatives were also
Oh, M., Chung, H,G., Kim, Y.H., Yoon, H.K.   +3 more
core  

Design and Simulation Verification of Model Predictive Attitude Control Based on Feedback Linearization for Quadrotor UAV

Applied Sciences
The flight dynamics of quadrotor UAVs are characterized by significant nonlinearity and inter-axis coupling, posing challenges for the direct application of linear control theory in flight control system design.
Xingyu Yuan, Jinfa Xu, Shengwei Li
doaj   +1 more source

Flight simulator testing to enhance comprehension and modeling of rotorcraft pilot couplings [PDF]

, 2019
The results of a pilot-in-the-loop flight simulator test campaign, aimed at enhancing the comprehension of the interaction between the pilot biomechanical response and the rotorcraft dynamics, are presented.
Paolini, R., Galli, M., Zanoni, A., Maisano, G., Murawa, M., Masarati, P., Zago, M., Frigerio, L., Quaranta, G.   +8 more
core  

Study on Vibration Reduction Technology of Coaxial Rigid Rotor Based on High‑Order Harmonic Control

Nanjing Hangkong Hangtian Daxue Xuebao
Aiming at the issue of large vibration loads during high-speed forward flight of coaxial helicopters， the implementation of high-order harmonic control（HHC） on the coaxial rotors system is considered for active vibration suppression control.
WEI Wulei, YU Zhihao, FAN Feng, ZHAO Jinrui   +3 more
doaj   +1 more source

Environmentally Friendly Rotorcraft Concepts: 2011-2014 [PDF]

, 2013
Motivation: Greenhouse gas concentrations have increased well beyond their pre-industrial levels due to human activities; Aircraft emissions are becoming regulated in industrialized nations, so future rotorcraft will need to be designed for minimal ...
Schulte, C., Johnson, W., Yeo, H., Basset, P.-M., Russell, C.   +4 more
core  

Frustrated Total Internal Reflection Measurement System for Pilot Inceptor Grip Pressure. [PDF]

Sensors (Basel), 2023
Zanoni A, Garbo P, Masarati P, Quaranta G.   +3 more
europepmc   +1 more source