Results 131 to 140 of about 1,986 (195)
Some of the next articles are maybe not open access.
Identification and control of a hovering tiltrotor UAV
2016 12th World Congress on Intelligent Control and Automation (WCICA), 2016In recent years, the tiltrotor UAV (Unmanned Aerial Vehicle) attracts increasing concern. As progressively requirements are being imposed on its control systems, accurate dynamics modeling is becoming increasingly important. However most commercial off-the-shelf UAVs have no accurate dynamics model.
Chao Chen +3 more
openaire +1 more source
Adaptive nonlinear control for tiltrotor aircraft
Proceedings of the 1998 IEEE International Conference on Control Applications (Cat. No.98CH36104), 2002The combination of feedback linearization and adaptive 'neural' networks provides a powerful controller architecture. This paper presents some of the nonlinear, and adaptive flight control research being conducted in this area in the School of Aerospace Engineering at the Georgia Tech.
R.T. Rysdyk, A.J. Calise
openaire +1 more source
Design of a Six-Tiltrotor Concept Vehicle for Urban Air Mobility
AIAA AVIATION FORUM AND ASCEND 2024NASA has developed a series of aircraft concepts known as reference vehicles for urban air mobility operations to facilitate research and development, enabling system-level comparisons between design candidates. In this study, new six-tiltrotor reference
Taemin Jeong +3 more
semanticscholar +1 more source
Conceptual design and analysis of a box fan-in-split-wing tiltrotor eVTOL aircraft
Aircraft Engineering and Aerospace TechnologyPurpose With the advancements in electric vertical take-off and landing (eVTOL) aircraft technology such as batteries, mechanisms, motors, configurations and so on, designers and engineers are encouraged to create unique and unconventional ...
Yukei Oyama, Mohsen Rostami, Joon Chung
semanticscholar +1 more source
Military potential of TiltRotor aircraft
The Aeronautical Journal, 1983The TiltRotor concept combines the wing of an aircraft with the rotors of a helicopter. The result is a VTOL aircraft which is fuel-efficient in both cruise and hover. It can be thought of as a turboprop aircraft which can take off and land vertically, but it is also an advanced rotorcraft which has twice the speed and range of present-day helicopters ...
openaire +1 more source
Mode transition control of large-size tiltrotor aircraft
arXiv.orgTiltrotors are an aircraft concept with the ability to rotate their rotors freely, achieving vertical take-off and fast forward flight. The combination of helicopter and fixed-wing flight into one aircraft provides versatility in mission selection, yet ...
G. Kirst, Xinhua Wang
semanticscholar +1 more source
EJ News
O presente estudo analisa as aplicações civis das aeronaves tiltrotor, investigando os fatores técnicos, econômicos e regulatórios que limitam sua adoção em larga escala. Por meio de pesquisa bibliográfica, documental e análise comparativa de desempenho, o artigo identifica que a complexidade tecnológica, os altos custos de aquisição e os desafios de ...
openaire +1 more source
O presente estudo analisa as aplicações civis das aeronaves tiltrotor, investigando os fatores técnicos, econômicos e regulatórios que limitam sua adoção em larga escala. Por meio de pesquisa bibliográfica, documental e análise comparativa de desempenho, o artigo identifica que a complexidade tecnológica, os altos custos de aquisição e os desafios de ...
openaire +1 more source
Whirl Flutter Predictions for Distributed Propulsion Tiltrotor Configurations
Journal of the American Helicopter SocietyA family of generic hingeless hub distributed propulsion tiltrotor configurations was modeled in RCAS and studied for whirl flutter along with a baseline conventional configuration for comparison.
Seyhan Gul, H. Yeo
semanticscholar +1 more source
Design and Performance of a Novel Tapered Wing Tiltrotor UAV for Hover and Cruise Missions
MachinesThis research focuses on a novel convertible unmanned aerial vehicle (CUAV) featuring four rotors with tilting capabilities combined with a tapered form.
Edgar Ulises Rojo-Rodríguez +3 more
semanticscholar +1 more source
Enabling technologies for a centre-line tiltrotor
The Aeronautical Journal, 2013AbstractThe success of the MV-22 Osprey has created the opportunity for a new design of gunship, tailored to the task of escorting it, an opportunity identified by many. Existing and emerging rotorcraft technology does not appear to have the complete capability, so this centre-line tiltrotor approach is aimed specifically at the escort duty.The mission
openaire +1 more source