Results 21 to 30 of about 610,153 (115)

Modeling For Helicopter Mode of a Tilt Tri-Rotor UAV

IOP Conference Series: Materials Science and Engineering, 2018
This paper developed a new structural configuration of tilt tri-rotor UAV. Based on the establishment of the coordinate system, the force in the helicopter mode was analyzed and the nonlinear six-degree-of-freedom equation of the aircraft was obtained. Finally, the model was established and the simulation of the open loop system was carried out.
Yuning Cui, Zirong Luo, Jianzhong Shang, Baocai Wang   +3 more
openaire   +1 more source

Design of an embedded microcomputer based mini quadrotor UAV [PDF]

, 2007
This paper describes the design and realization of a mini quadrotor UAV (Unmanned Aerial Vehicle) that has been initiated in the Systems and Control Laboratory at the Computer and Automation Research institute of the Hungarian Academy of Science in ...
Lantos, Béla, Prohászka, Zoltán, Bauer, Péter, Gáspár, Péter, Soumelidis, Alexandros   +4 more
core   +2 more sources

Flight-Log-Based Assessment and Center-of-Gravity-Oriented Redesign of a Large Flying-Wing VTOL UAV [PDF]

INCAS Bulletin
This study evaluates the VTOL behaviour of a 4.18 m-span, 15.5 kg flying-wing UAV and proposes a simplified propulsion-layout redesign. Three flights of the original tri-rotor configuration were analysed using attitude, motor and servo PWM, altitude, and
Gabriel-Petre BADEA, Daniel-Eugeniu CRUNTEANU   +1 more
doaj   +1 more source

Robust Hybrid Control Algorithm for Tuning the Altitude and Attitude of Unmanned Aerial Vehicle

Journal of Robotics, Volume 2020, Issue 1, 2020., 2020
In this article, a new and novel robust hybrid control algorithm is designed for tuning the parameters of unmanned aerial vehicle (UAV). The quadrotor type UAV mathematical model is taken to observe the effectiveness of our designed robust hybrid control algorithm.
Bohang Wang, Daobo Wang, L. Fortuna
wiley   +1 more source

Design and Implementation of a Hardware‐in‐the‐Loop Simulation System for a Tilt Trirotor UAV

Journal of Advanced Transportation, Volume 2020, Issue 1, 2020., 2020
The tilt trirotor unmanned aerial vehicle (UAV) is a novel aircraft that has broad application prospects in transportation. However, the development progress of the aircraft is slow due to the complicated control system and the high cost of the flight experiment.
Li Yu, Guang He, Shulong Zhao, Xiangke Wang, Lincheng Shen, Maria Vittoria Corazza   +5 more
wiley   +1 more source

Design of Flight Control System for a Novel Tilt‐Rotor UAV

Complexity, Volume 2020, Issue 1, 2020., 2020
This paper presents the control system design process of a novel tilt‐rotor unmanned aerial vehicle (TRUAV). First, a new configuration scheme with the tilting rotors is designed. Then, the detailed nonlinear mathematical model is established, and the parameters are acquired from designed experiments and numerical analyses. For control design purposes,
Zaibin Chen, Hongguang Jia, Cornelio Posadas-Castillo   +2 more
wiley   +1 more source

Innovative Hybrid UAV Design, Development, and Manufacture for Forest Preservation and Acoustic Surveillance

Inventions
The research described in this paper focuses on the development of an innovative unmanned aerial vehicle (UAV) tailored for a specific mission: detecting the acoustic signature emitted by chainsaws, identifying deforestation, and reporting its location ...
Gabriel Petre Badea, Tiberius Florian Frigioescu, Madalin Dombrovschi, Grigore Cican, Marius Dima, Victoras Anghel, Daniel Eugeniu Crunteanu   +6 more
doaj   +1 more source

Frontiers of Doppler Lidar: A Review on Its Global Applications

Meteorological Applications, Volume 33, Issue 3, May/June 2026.
Doppler lidars provide high‐resolution wind measurements that support weather forecasting, wind energy optimization, and aviation safety. This review highlights their global applications, operational advantages, and growing role in atmospheric science and sustainable development. ABSTRACT Doppler lidar is a powerful remote sensing technology capable of
Sridhara Nayak, Isao Kanda
wiley   +1 more source

Past Field Experiments of Solar Radiation Modification: A Review of the Scientific and Technical Aspects for Governance

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract As global warming intensifies, Solar Radiation Modification (SRM) has drawn increasing scientific and policy interest as a potential means to temporarily offset climate impacts. This review examines past SRM (or SRM‐like) field experiments, categorized into three primary techniques: Tropospheric and Stratospheric Aerosol Injection (SAI ...
I. Hernandez‐Galindo, A. Määttänen, B. H. Redmond Roche, O. Boucher, P. J. Irvine, J. C. Moore   +5 more
wiley   +1 more source

Design Challenges to Expand the Functionality of Drones: Deformable Rotorcraft and Nature‐Inspired Flapping Drones

Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This review systematically analyzes deformable drones, including extendable, foldable, and tilting configurations, along with nature‐inspired flapping rotorcraft. By classifying deformation principles and structural mechanisms, design trade‐offs, functional capabilities, and future development potential are highlighted.
Ju‐Hee Lee, Sumin Jung, Jinwoo Jang, Yeji Han, Minchae Kang, Jihun Seong, Suyeon Seo, Eunsol Park, Haesol Kwak, Min‐Woo Han   +9 more
wiley   +1 more source