Results 71 to 80 of about 10,092 (210)

Rotorcraft aeroelastic stability [PDF]

Theoretical and experimental developments in the aeroelastic and aeromechanical stability of helicopters and tilt-rotor aircraft are addressed. Included are the underlying nonlinear structural mechanics of slender rotating beams, necessary for accurate ...
Hodges, Dewey H., Ormiston, Robert A., Peters, David A., Warmbrodt, William G.   +3 more
core   +1 more source

Real-Time TECS Gain Tuning Using Steepest Descent Method for Post-Transition Stability in Unmanned Tilt-Rotor eVTOLs

Drones
Unmanned tilt-rotor electric Vertical Take-Off and Landing (eVTOL) aircraft face significant control challenges during the transition from hover to forward flight, particularly when using open-source autopilot systems that rely on open-loop tilt control ...
Choonghyun Lee, Ngoc Phi Nguyen, Sangjun Bae, Sung Kyung Hong   +3 more
doaj   +1 more source

The overall design and full-aircraft aerodynamic simulation of the tilting rotor cargo UAV based on variable shaft angle gear drive

MATEC Web of Conferences, 2018
Traditional tilt rotor aircraft rely on turning the whole engine nacelle, to accomplish the transformation between vertical take-off and landing as well as flying.
Chang Chia-kan, Huang Jingjing, Zhang Cong, Gao Yue, Wang Ya-ni, Shuang E, Chen Xubing   +6 more
doaj   +1 more source

Conceptual design study of a 1985 commercial STOL tilt rotor transport [PDF]

Results of conceptual engineering design studies of a STOL tilt rotor commercial aircraft for the 1985 time frame are presented. The details of aircraft size, performance, flying qualities, noise, and cost are included.
Alexander, H. R., Magee, J. P., Widdison, C. A.   +2 more
core   +1 more source

Design, Modeling, and Control of a Composite Tilt-Rotor Unmanned Aerial Vehicle

Drones
Tilt-rotor unmanned aerial vehicles combine the advantages of multirotor and fixed-wing aircraft, offering features like rapid takeoff and landing, extended endurance, and wide flight conditions.
Zhuang Liang, Li Fan, Guangwei Wen, Zhixiong Xu   +3 more
doaj   +1 more source

An assessment of the capability to calculate tilting prop-rotor aircraft performance, loads and stability [PDF]

Calculated performance, loads, and stability of the XV-15 tilt rotor research aircraft are compared with wind tunnel and flight measurements, to define the level of the current analytical capability for tilting prop rotor aircraft, and to define the ...
Johnson, W.
core   +1 more source

The XV-15 tilt rotor research aircraft [PDF]

The design characteristics of the XV-15 Tilt rotor research aircraft are presented. Particular attention is given to the following: control system; conversion system; and propulsion system.
Dugan, D. C., Erhart, R. G., Schroers, L. G.   +2 more
core   +1 more source

Advances in understanding autogyro flight dynamics [PDF]

, 2008
A comprehensive flight dynamics study of the autogyro is presented in this paper. A state of the art generic simulation of the vehicle type was developed and validated against flight data.
Houston, S., Thomson, D.G.
core  

Tilt Rotor Aircraft Coupling Research [PDF]

Advances in Intelligent Systems Research, 2016
Ning Wang, Chong Zhao
openaire   +1 more source

Cost characteristics of tilt-rotor, conventional air and high speed rail short-haul intercity passenger service [PDF]

The cost analysis done to support an assessment of the potential for a small tilt-rotor aircraft to operate in short-haul intercity passenger service is described in detail.
Morlok, Edward K., Schoendorfer, David L.   +1 more
core   +1 more source