Results 41 to 50 of about 569,053 (268)
Actuator Disk Model with Improved Tip Loss Correction for Hover and Forward Flight Rotor Analysis
Aerospace, 2023 A novel actuator disk model (ADM) coupled with lifting-line theory is proposed in this paper. Several virtual planform blades are placed on a disk plane with a constant azimuthal interval, and the lifting-line theory is applied to each blade to predict ...
Chankyu Son, Taewoo Kim
doaj +1 more source
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 . Consumer-grade Unmanned Aircraft Systems (UAS), and particularly Small Unmanned Aircraft (SUA) weighing less than 20 kg, have recently become very attractive for photogrammetric data acquisition across a wide range of applications.
M. Peppa, JA Hall, J. Goodyear, J. Mills
semanticscholar +1 more source
FluidsThe article explores flow behavior around thick airfoils at low Reynolds numbers and the potential application of energy methods to manipulate the flow field for increased lift and reduced drag. The study relies on a set of propulsion airfoils calculated
Pavel Bulat +3 more
doaj +1 more source
Potential Data Link Candidates for Civilian Unmanned Aircraft Systems: A Survey [PDF]
IEEE Communications Surveys and Tutorials, 2019 This survey studies the potential data link candidates for unmanned aircraft vehicles (UAVs). There has been tremendous growth in different applications of UAVs such as lifesaving and rescue missions, commercial use, recreations, etc.
Maede Zolanvari, R. Jain, Tara Salman
semanticscholar +1 more source
Drones: Innovative Technology for Use in Precision Pest Management. [PDF]
, 2020 Arthropod pest outbreaks are unpredictable and not uniformly distributed within fields. Early outbreak detection and treatment application are inherent to effective pest management, allowing management decisions to be implemented before pests are well ...
de Lange, Elvira S +3 more
core +1 more source
Adaptive and Online Health Monitoring System for Autonomous Aircraft [PDF]
, 2012 Good situation awareness is one of the key attributes required to maintain safe flight, especially for an Unmanned Aerial System (UAS). Good situation awareness can be achieved by incorporating an Adaptive Health Monitoring System (AHMS) to the aircraft.
Howe, Joe M. +3 more
core +1 more source
Smoke Diffusion Characteristics for Smoke Generator Based on Turbojet
Nanjing Hangkong Hangtian Daxue XuebaoBased on the discrete phase model in the simulation software FLUENT， the smoke diffusion characteristics under high-speed jet action of a smoke generator powered by a turbojet engine are calculated.
CAO Guangzhou, REN Rui, SUN Hongliang
doaj +1 more source
Unmanned aerial vehicle bypass training system
Технічна інженерія, 2020 The problem of creating a system for simulating the flight of an unmanned aircraft or remotely piloted aircraft system between buildings is solved, which uses multi-mode flight control by dividing the trajectory of the unmanned aircraft into several ...
M.S. Graf
doaj +1 more source
Laminar composite materials for unmanned aircraft wings
Defense and Security Studies, 2022 Unmanned Aerial Vehicles (UAVs) have high popularity, especially in the military field, but are now also being applied to the private and public sectors. One of the UAV components that require high material technology is the wing.
Mala Utami +4 more
doaj +1 more source
An Integrated Traveling Salesman and Coverage Path Planning Problem for Unmanned Aircraft Systems
IEEE Control Systems Letters, 2019 Unmanned aircraft systems (UASs) have gained great popularity in land monitoring, 3-D mapping, search and rescue, among others. Existing studies on UAS path planning in these missions consider only a single region to be examined.
Junfei Xie, L. G. Carrillo, Lei Jin
semanticscholar +1 more source