Design, performance evaluation and optimization of a UAV

Kontogiannis, Spyridon G.; Ekaterinaris, John A.

doi:10.1016/j.ast.2013.04.005

Cited by 113 publications

(33 citation statements)

References 4 publications

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“…Table 2 enlists some of the key operating conditions and design requirements that the aerial platform needs to fulfill in order to ensure a successful performance. Both cruise and stall speeds were set to ensure good-quality data gathering [43]. The payload mass was set not to exceed 1 kg after making a brief survey of common sensors ( Table 1) that UAVs employ for forest monitoring [6].…”

Section: Case Studymentioning

confidence: 99%

Wetland Monitoring Using Unmanned Aerial Vehicles with Electrical Distributed Propulsion Systems

Valencia¹,

Alulema²,

Rodriguez³

2019

Propulsion Systems

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The inspection of wetlands in the Ecuadorian highlands has gained importance due to the environmental issues linked to the growth of human activities and the expansion of the agricultural and livestock frontiers. In this sense, unmanned aerial vehicles (UAVs) have been amply used in monitoring activities such as the supervision of threatened ecosystems, where cyclic measurements and high-resolution imagery are needed. However, the harsh operating conditions in the Andean highlands and sensitive ecosystem restrictions demand efficient propulsion configurations with low environmental impact. Electrical distributed propulsion (EDP) systems have surged as a forefront alternative since they offer benefits in both the propulsive and aerodynamic performance of fixed-wing UAVs. In this chapter, an EDP system is sized for a design point at the Andean operating conditions. Thereafter, two propulsion configurations were established based on off-the-shelf components, and their performance was characterized through analytical approaches. These results highlight the trends in power consumption and performance when the number of propulsors is increased. A significant contribution of this work is to exhibit important patterns in the performance of electric propulsion by using commercial components, and to set the operating limitations that can be further explored for analogous configurations in larger UAVs.

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Section: Case Studymentioning

confidence: 99%

Wetland Monitoring Using Unmanned Aerial Vehicles with Electrical Distributed Propulsion Systems

Valencia¹,

Alulema²,

Rodriguez³

2019

Propulsion Systems

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“…This is due to the availability of advance lightweight material, microelectronics system, allowing generation of enhanced efficiency UAV. Thus, allowing emerging civil market to venture into the utilization of UAV aiming for various missions [1][2][3].…”

Section: Continuous Development and Optimization Of Unmannedmentioning

confidence: 99%

Aerodynamic Performance Characterization and Static Structural Analysis of Slotted Propeller: Part A Effect of Position

Seeni¹

2019

MMEP

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In this paper, novel slotted propeller blade design performance is presented in terms of thrust coefficient, power coefficient and efficiency by utilizing ANSYS Fluent. The effects of slotted positions were discussed with respect to baseline APC Slow Flyer 10' x 7' configurations. Seven slot locations with respect to chord length, 12.5%, 25%, 37.5%, 50%, 62.5%, 75% and 87.5% were tested. The result shows that introduction of slot along the propeller blade increases the thrust coefficient, with range of 0.1% to 4.74% for low advance ratio. However, increase in thrust coefficient also causes increase in power coefficient, ranging from 10.38% to 44.59% compared to baseline design, hence reducing propeller efficiency. In addition, structural integrity of the blade was tested. Pressure distribution of the propeller blade demonstrated higher pressure on the back section, and lower pressure at the front section which produces thrust. In addition, the result shows that pressure distribution are highly influenced by changes of advance ratio. The analysis shows that the propeller design managed to withstand stress and strain breaking point when operated at high advance ratio.

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“…Egocentric aircraft operation is a feature that has been employed in many unmanned aircraft (UA) designs (Chi et al 2012;Kontogiannis and Ekaterinaris 2013;Winkvist et al 2013). Recommended guidelines established for the safe operation of FPV RC aircraft have applicability to the operation of sUAS developed and flown for research (e.g., academia, government, and industry) and government-approved missions (e.g., law enforcement, search and rescue, geological surveying) with a certificate of waiver or authorization or experimental classification (FAA 2010b; Kumar et al 2011; Academy of Model Aeronautics Advanced Flight Systems Committee 2012).…”

Section: Introductionmentioning

confidence: 99%

Implementing low cost two-person supervisory control for small unmanned aerial systems

Terwilliger

Ison

2014

J. Unmanned Veh. Sys.

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Commercially off-the-shelf remote control (RC) model aircraft have been used as a base platform for the development of small unmanned aerial systems (sUAS). Such designs have included use of first person view (FPV), inertial measurement units, and autopilot systems. Recommended guidelines established for operation of FPV recreational RC aircraft have applicability to operation of sUAS, when use of consistent components and platforms are considered. The purpose of this research was to examine existing literature, guidance, regulations, and other influencing factors to assess the necessity of redundancy management practices to identify recommended control stratagem, processes and procedures, operational criteria, and design of a proof of concept system to operate sUAS with optimal safety and operational benefits within recommended and legislated boundaries. Qualitative content analysis techniques were used to perform a literature review, while a survey of applicable technology (e.g., equipment, components, and software) was used in the development of a proof of concept system. The results were identification of a recommended supervisory control framework, a simulated supervisory control system, a physical proof of concept system, and a series of recommendations relating to considerations and potential follow-up research to better understand the limitations, constraints, and applicable benefits in the actual operation environment.Résumé : Les avions modèles télécommandés offerts sur le marché ont été utilisés comme plateforme de base pour l'élaboration de systèmes d'aéronefs sans pilote. Ces conceptions comportaient l'utilisation de la vue subjective, d'unités de mesure inertielle et de systèmes de pilote automatique. Des directives déjà établies concernant l'opération d'avions de loisirs à vue subjective peuvent s'appliquer à l'opération de systèmes d'aéronefs sans pilote, lorsque l'utilisation de composantes et de plateformes similaires est prise en considération. L'objectif de la présente étude est d'examiner la documentation, l'orientation, les réglemen-tations et autres facteurs d'influence qui existent à l'heure actuelle afin d'évaluer la néces-sité de mettre en oeuvre des pratiques de gestion redondantes visant à identifier la stratégie, les processus et les procédures de surveillance, les critères opérationnels et la conception d'une preuve d'un système conceptuel visant à utiliser un système d'aéronef sans pilote avec une sécurité optimale et des avantages opérationnels à l'intérieur des limites juridiques recommandées. Des techniques qualitatives d'analyse de contenu ont été utilisées afin d'effectuer une analyse documentaire, tandis qu'une recherche de technologies applicables (c'est-à-dire, équipement, composantes et logiciel) a été menée pour élaborer l'épreuve d'un système conceptuel. Les résultats ont permis d'identifier un cadre de système de surveillance recommandé, un système de surveillance simulé, une preuve physique d'un système conceptuel et une série de recommandations concernant différentes c...

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Design, performance evaluation and optimization of a UAV

Cited by 113 publications

References 4 publications

Wetland Monitoring Using Unmanned Aerial Vehicles with Electrical Distributed Propulsion Systems

Wetland Monitoring Using Unmanned Aerial Vehicles with Electrical Distributed Propulsion Systems

Aerodynamic Performance Characterization and Static Structural Analysis of Slotted Propeller: Part A Effect of Position

Implementing low cost two-person supervisory control for small unmanned aerial systems

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