Results 11 to 20 of about 610,153 (115)

Design and control of novel tri-rotor UAV [PDF]

Proceedings of 2012 UKACC International Conference on Control, 2012
Tri-rotor UAVs are more efficient compared to quadrotors in regard to the size and power requirement, yet, tri-rotor UAVs are more challenging in terms of control and stability. In this paper, we propose the design and control of a novel tri-rotor UAV. The proposed platform is designed to achieve six degree of freedom using a thrust vectoring technique
Mohamed, Mohamed Kara, Lanzon, Alexander; id_orcid 0000-0003-3424-8808   +1 more
core   +8 more sources

Development of a co-axial tri-rotor UAV. [PDF]

, 2009
This paper discusses the initial design requirements and development of a Small Unmanned Aerial Vehicle (SUAV), sometimes referred to as a Miniature Aerial Vehicle (MAV) or Micro Unmanned Aerial Vehicle (μUAV) as the backdrop to an entry for the MoD Grand Challenge Event 2008 (MoD GC 2008).\ud A review of 61 SUAVs has been undertaken together with the ...
Prior, Stephen D., Karamanoglu, Mehmet, Odedra, Sid, Foran, Tom, Erbil, Mehmet Ali   +4 more
core   +9 more sources

Nonlinear Dynamic Inversion and Neural Networks for a Tilt Tri-Rotor UAV

IFAC-PapersOnLine, 2015
Abstract A small scale tri-rotor test bed with tilting propellers has been built to test flight control laws in view of the construction of a larger tilt rotor UAV. As a first step to achieve autonomous flight capabilities, a nonlinear dynamic inversion based flight controller is developed.
D'Amato, E., Di Francesco, G., Notaro, I., Tartaglione, G., Mattei, M.   +4 more
openaire   +5 more sources

Assessing the Feasibility of Drone-Mediated Vaccine Delivery: An Exploratory Study. [PDF]

Health Sci Rep
ABSTRACT Background and Aims In the past decade, unmanned aerial systems (UASs), commonly known as drones, have found applications not only in military and agriculture but also in the transportation of medical supplies. Purpose The present study was conducted to assess the practicality of utilizing drones as a mode for the delivery of vaccines to ...
Aggarwal S, Gupta P, Balaji S, Sharma S, Ghosh AK, Simmy, Bhargava B, Panda S.   +7 more
europepmc   +2 more sources

Control of an experimental mini quad-rotor UAV [PDF]

, 2008
The design and the initial realization of control on an experimental in-door unmanned autonomous quadrotor helicopter is presented. This is a hierarchical embedded modelbased control scheme that is built upon the concept of backstepping, and is ...
Lantos, Béla, Alexandros Soumelidis, Bela Lantos, Regula, Gergely, Gergely Regula, Peter Gaspar, Gáspár, Péter, Soumelidis, Alexandros   +7 more
core   +2 more sources

A Review on Vertical Take‐Off and Landing (VTOL) Tilt‐Rotor and Tilt Wing Unmanned Aerial Vehicles (UAVs)

Journal of Engineering, Volume 2022, Issue 1, 2022., 2022
The Vertical Take‐off and Landing (VTOL) unmanned aerial vehicles (UAVs) with the tilt‐rotor mechanism also known as hybrid UAVs have a lot of challenges in designing and controlling concerning their use in harsh weather for surveillance and access to remote areas.
Akshat Misra, Sudhakaran Jayachandran, Shivam Kenche, Anirudh Katoch, Arjun Suresh, Edison Gundabattini, Senthil Kumaran Selvaraj, Addisalem Adefris Legesse, Andras Szekrenyes   +8 more
wiley   +1 more source

Design and Analysis of Hybrid Fixed‐Wing Type Flying Robot

Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022
With the advent of disruptive technologies, unmanned aerial vehicles have seen substantial growth over the past few years. The market for flying robots is increasing drastically, and they are getting used in various sectors. This paper is aimed at discussing the novel design of a hybrid fixed‐wing type flying robot in which both fixed‐wing and rotary ...
Ritu Maity, Ruby Mishra, Prashant Kumar Patnaik, Mangal Sain, Kalidoss Rajakani   +4 more
wiley   +1 more source

Aeroacoustic analysis of main rotor and tail rotor interaction [PDF]

, 2008
The increased restrictions placed on helicopter noise levels over recent decades have encouraged manufacturers to better understand tail rotor noise and its aerodynamic sources.
Fletcher, Timothy M., Brown, R.E., Fletcher, T.M., Duraisamy, K., Duraisamy, Karthikeyan, Brown, Richard   +5 more
core   +10 more sources

A minimal thrust vectoring rotor with six degree of freedom: Design and analysis

IET Cyber-Systems and Robotics, Volume 3, Issue 1, Page 89-102, March 2021., 2021
Abstract This article presents a minimal thrust vectoring rotor (mTVR) with 6‐DoF motion ability. The mTVR is equipped with only three tiltable thrust units that deploy the coaxial counter‐propellers design for generating pure thrusts. Thus, the mTVR is able to perform 6‐DoF flight with decoupled translation and rotation based on the full rank Jacobian
Wei Qiu, Chao Xu
wiley   +1 more source

Fault‐Tolerant Control of Quadrotor UAVs Based on Back‐Stepping Integral Sliding Mode Approach and Iterative Learning Algorithm

Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
In this paper, a fault‐tolerant control system based on back‐stepping integral sliding mode controller (BISMC) is designed and analyzed for both nonlinear translational and rotational subsystems of the quadrotor unmanned aerial vehicles (UAVs). The novelty of this paper is about combination of a classic controller with a repetitive algorithm to reduce ...
Davood Allahverdy, Ahmad Fakharian, Mohammad Bagher Menhaj, Hao Shen   +3 more
wiley   +1 more source