Temat: Unmanned aerial vehicle - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Operational and technological directions for unmanned aircraft systems development
Autorzy:: Polak, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/576329.pdf
Data publikacji:: 2018-03-20
Wydawca:: Akademia Sztuki Wojennej
Tematy:: Unmanned Aerial System
Unmanned Aerial Vehicle
autonomy
Opis:: Unmanned Aircraft Systems are continuously delivering new and enhanced battlefield capabilities to the military sphere. While the demand for unmanned systems remains at a relatively high level, it is expected that a number of operational and technological factors will further influence unmanned program development in the nearest future. The purpose of this paper is to articulate a vision for the continued development of unmanned systems technology across military applications. This article establishes a technological and an operational vision for the next 25 years and outlines actions and technologies for military experts and industry to pursue to efficiently align with this vision.
Źródło:: Security and Defence Quarterly; 2018, 18, 1; 57-74
2300-8741
2544-994X
Pojawia się w:: Security and Defence Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Quality of Unmanned Aerial Vehicles: Ergodesign Aspect. Part 2
Autorzy:: Kharchenko, Volodymyr
Rubtsov, Anatolii
Svirko, Volodymyr
Zhudova, Iryna
Powiązania:: https://bibliotekanauki.pl/articles/2056522.pdf
Data publikacji:: 2022-06-07
Wydawca:: Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:: unmanned aerial vehicle
ergodesign aspect
aerial systems
Opis:: In the modern world, scientific and practical ergodesign activity on the development and use of drones, the concept of "human factor" is becoming more and more important. It is one of the main studies in improving the safety, efficiency and comfort of the "man - unmanned aerial vehicle" system operation. The most promising research is aimed at the application and development of new approaches to the evaluation of algorithms for unmanned aircraft maintenance and the organization of their operators` activities. The system of unmanned aerial vehicles ergodesign quality indicators developed and presented in a tabular form reflects practically all design and ergonomic properties of modern unmanned aerial systems. It is based on the existing normative documentation inUkrainedeveloped by the authors, harmonized with international and European standards. It allows the analysis and evaluation of unmanned aerial vehicles in order to take into account consumer interests at the beginning of their design reducing the assimilation time of products and preventing irrational production costs. The results of such an analysis underlie the development of technical documentation, standards, and specifications. They should be taken into account when putting products into production.
Źródło:: Logistics and Transport; 2022, 53-54, 1-2; 133-160
1734-2015
Pojawia się w:: Logistics and Transport
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Preliminary study of an airplane for electric propulsion testing at high altitudes
Autorzy:: Galinski, C.
Powiązania:: https://bibliotekanauki.pl/articles/246733.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: electric propulsion
flight testing
unmanned aerial vehicle
Opis:: Technology of photovoltaic cells and lithium batteries is being developed rapidly. As a result, attempts to build solar High Altitude Long Endurance (HALE) airplanes are more and more frequent. In the future, such airplanes may appear very useful for the economy because they may replace geostationary satellites in several applications. Unfortunately, data on altitude effect on photovoltaic cells and batteries performance are not easily available. Moreover, acquisition cost of cells is very high. Therefore, a tool for inexpensive testing of cells is needed. This article shows a study of very light unmanned airplane that could be used as a testbed for this purpose. Weight assumptions are presented together with concept of geometry and aerodynamic characteristics. Propulsion system is proposed, so also airplane performance is estimated. Finally, results are discussed leading to the conclusion. It appears that unmanned airplane with maximum take-off weight of 1.3 kg can climb to the altitude of 10 km within 4 hours during sunny summer day about the noon. However, only 30% of such days can be used because of strong winds blowing at high altitudes, quite small optimal airspeed of the airplane and constraints due to Air Traffic Management. Moreover, application of variable pitch propeller is recommended as well as some kind of take-off assist. For example, towing or take-off from the hill is desirable to avoid threats resulting from small climb rate.
Źródło:: Journal of KONES; 2018, 25, 3; 167-174
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Unmanned aerial vehicles and their growing role in shaping military doctrine
Autorzy:: Bernant, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/1202386.pdf
Data publikacji:: 2018
Wydawca:: Wyższa Szkoła Biznesu w Dąbrowie Górniczej
Tematy:: Unmanned aerial vehicle
Drone
Tactics
Military doctrine
Opis:: The goal of the paper is to present growing influence of unmanned aerial vehicles (UAVs) on the shape of military doctrine. Author, in the first part of article, presents terminology and classifications of the UAVs, as well as, the main criteria of the classification which are: thrust, purpose, weight, and range/endurance. The second part of the article is dedicated to military technology. In that part of the article, author presents possible kind of utilization of the UAVs, presenting in the more details military drones. In description of the drones is also part of initial conclusions addressing to the challenges new doctrine and battlefield strategy. In the conclusion author presents the expecting changes in a military doctrine, caused by employing of a new military technology, a specially the new kind of drones on the battle field.
Źródło:: Security Forum; 2018, 1, Volume 2 No 1/2018; 77-90
2544-1809
Pojawia się w:: Security Forum
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Centralized Spectrum Sharing and Coordination Between Terrestrial and Aerial Base Stations of 3GPP-Based 5G Networks
Autorzy:: Bechta, Kamil
Powiązania:: https://bibliotekanauki.pl/articles/1844695.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: 5G
spectrum sharing
unmanned aerial vehicle
Opis:: The objective of this paper is to estimate performance of a new approach for spectrum sharing and coordination between terrestrial base stations (BS) and On-board radio access nodes (UxNB) carried by Unmanned Aerial Vehicles (UAV). This approach employs an artificial intelligence (AI) based algorithm implemented in a centralized controller. According to the assessment based on the latest specifications of 3rd Generation Partnership Project (3GPP) the newly defined Unmanned Aerial System Traffic Management (UTM) is feasible to implement and utilize an algorithm for dynamic and efficient distribution of available radio resources between all radio nodes involved in process of optimization. An example of proprietary algorithm has been described, which is based on the principles of Kohonen neural networks. The algorithm has been used in simulation scenario to illustrate the performance of the novel approach of centralized radio channels allocation between terrestrial BSs and UxNBs deployed in 3GPP-defined rural macro (RMa) environment. Simulation results indicate that at least 85% of simulated downlink (DL) transmissions are gaining additional channel bandwidth if presented algorithm is used for spectrum distribution between terrestrial BSs and UxNBs instead of baseline soft frequency re-use (SFR) approach.
Źródło:: International Journal of Electronics and Telecommunications; 2021, 67, 2; 301-308
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Feasibility study for a fuel cell-powered unmanned aerial vehicle with a 75 kg payload
Autorzy:: Desantes, José M.
Novella, Ricardo
García-Cuevas, Luis M.
Lopez-Juarez, Marcos
Powiązania:: https://bibliotekanauki.pl/articles/36455727.pdf
Data publikacji:: 2022
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: Unmanned Aerial Vehicle
fuel cell
hydrogen
optimization
Opis:: Among the possible electric powerplants currently driving low-payload UAVs (up to around 10 kg of payload), batteries offer certain clear benefits, but for medium-payload operation such as aerotaxis and heavy-cargo transportation UAVs, battery capacity requirements restrict their usage due to high weight and volume. In light of this situation, fuel cell (FC) systems (FCS) offer clear benefits over batteries for the medium-payload UAV segment (> 50 kg). Nevertheless, studies regarding the application of FCS powerplants to this UAV segment are limited and the in-flight performance has not been clearly analysed. In order to address this knowledge gap, a feasibility analysis of these particular applications powered by FCS is performed in this study. A validated FC stack model (40 kW of maximum power) was integrated into a balance of plant to conform an FCS. As a novelty, the management of the FCS was optimized to maximize the FCS efficiency at different altitudes up to 12500 ft, so that the operation always implies the lowest H₂ consumption regardless of the altitude. In parallel, an UAV numerical model was developed based on the ATLANTE vehicle and characterized by calculating the aerodynamic coefficients through CFD simulations. Then, both models were integrated into a 0D-1D modelling platform together with an energy management strategy optimizer algorithm and a suitable propeller model. With the preliminary results obtained from the FCS and UAV models, it was possible to ascertain the range and endurance of the vehicle. As a result, it was concluded that the combination of both technologies could offer a range over 600 km and an endurance over 5 h. Finally, with the integrated UAV-FCS model, a flight profile describing a medium altitude, medium endurance mission was designed and used to analyse the viability of FC-powered UAV. The results showed how UAVs powered by FCS are viable for the considered aircraft segment, providing competitive values of specific range and endurance.
Źródło:: Transactions on Aerospace Research; 2022, 2 (267); 13-30
0509-6669
2545-2835
Pojawia się w:: Transactions on Aerospace Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Use of construction materials in unmanned aerial vehicles
Autorzy:: Adamski, M.
Powiązania:: https://bibliotekanauki.pl/articles/245052.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: Unmanned Aerial Vehicle
UAV
construction materials
material properties
Opis:: The design process is mostly connected with a proper selection of construction materials. Newly designed UAVs must undergo assessment in terms of performed tasks, range or fuel consumption. A significant influence upon the selection of materials, which are long lasting and resistant to damage, is exerted by the conditions of work of Unmanned Aerial Vehicles. They mainly execute their tasks at high altitudes with high speeds, where temperature and pressure differences may extensively damage not only the airframe skin, but also the equipment and the propulsion system itself. The aim of this study is to present the characteristics of materials currently used as well as their assessment in employed construction elements of UAVs. Polymer composites are superior to Al and Ti alloys, steel within the parameters of tensile strength and stiffness. As for the density gradient, polymer carbon fibre composites exceed glass fibre composites, also under cyclically variable loads. Glass fibre composites during tensile testing show higher values and a higher capability of absorbing energy under static and dynamic forces. Polymer matrix composites, reinforced with Kevlar, are less stiff than carbon-fibre composites, due to lower values of elasticity modulus, however they demonstrate higher impact load. Strength tests provide valuable data concerning the properties of a given material, such as tensile modulus E [MPa], tensile strength UTS [MPa], or resistance to high temperatures. It must be noted that these properties significantly affect the functioning of the airframe and its components.
Źródło:: Journal of KONES; 2016, 23, 3; 11-17
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: An adequate mathematical model of four-rotor flying robot in the context of control simulations
Autorzy:: Gardecki, S.
Giernacki, W.
Goslinski, J.
Kasinski, A.
Powiązania:: https://bibliotekanauki.pl/articles/950936.pdf
Data publikacji:: 2014
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: unmanned aerial vehicle (UAV)
quadrocopter
modeling
mathematical model
Opis:: In this paper a model of the dynamics of four-rotor flying robot is described in details. Control design must be preceded by the modeling and subsequent analysis of the robot behavior in simulator. It is therefore necessary to develop the mathematical model as accurate as it is possible. The paper contains a detailed derivation of the mathematical model in the context of physics laws affecting the quadrocopter. The novelty of presented notation is an extention of Coriolis forces in linear acceleration and the gyroscopic effect on angular acceleration. In the validation phase, the mathematical model was verified with the use of proposed control algorithms. Simulation studies have demonstrated the adequacy of a MATLAB model to properly reflect the real quadrocopter dynamics. This would allow for its use in the simulator and afterwards to implement and verify of control laws on the real fourrotor flying robot.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2014, 8, 2; 9-16
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Bezzałogowe statki powietrzne – geneza, teraźniejszość i przyszłość
Unmanned aerial vehicles – genesis, present and future
Autorzy:: Bukowski, P.
Szala, G.
Powiązania:: https://bibliotekanauki.pl/articles/95416.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:: dron
bezzałogowy statek powietrzny
drone
unmanned aerial vehicle
Opis:: W pracy przedstawiono historię oraz zastosowanie bezzałogowych statków powietrznych, pobudki jakimi kierowali się konstruktorzy i wynalazcy oraz mniej lub bardziej udane wyniki ich poczynań. Opracowanie zawiera zarówno pierwsze projekty, często nieudane, jak i konstrukcje, które wznosiły się w powietrze. Przedstawiono również najnowsze konstrukcje militarne wyposażone w zaawansowane systemy nawigacyjne i bojowe z pełnym sukcesem wykonujące zadane misje. Kierunki rozwoju platform oraz podstystemów BSP zamykają całość publikacji.
This elaboration shortly presents the use and history of unmanned aerial vehicles, the motivations of designers and inventors, and the more or less successful results of their actions. The study contains both the first projects, often unsuccessful, and structures that got up into the sky. The whole study is closed by the latest military constructions equipped with advanced navigational and combat systems which perform assigned missions successfully. The development directions of UAV platforms and sub-systems close the entire publication.
Źródło:: Postępy w Inżynierii Mechanicznej; 2018, 11(6); 5-19
2300-3383
Pojawia się w:: Postępy w Inżynierii Mechanicznej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Charakterystyka wybranych bezzałogowych statków powietrznych przeznaczonych do rozpoznania powietrznego
Characteristics of Selected Unmanned Aerial Vehicles Dedicated to Aerial Intelligence
Autorzy:: Kulik, Tomasz
Kaźmierczak, Hubert
Powiązania:: https://bibliotekanauki.pl/articles/2182136.pdf
Data publikacji:: 2022-12-29
Wydawca:: Lotnicza Akademia Wojskowa
Tematy:: unmanned aerial vehicle
unmanned aerial vehicle, tactical and technical data, aerial intelligence
aerial intelligence
bezzałogowe statki powietrzne
parametry taktyczno-techniczne
rozpoznanie powietrzne
Opis:: Jednym z podstawowych zadań wykonywanych przez bezzałogowe statki powietrzne jest rozpoznanie powietrzne. Odgrywa ono wiodącą rolę zarówno w czasie pokoju, kryzysu, jak i wojny. Dzieje się tak, ponieważ bez wiarygodnych i aktualnych danych planowanie działań jest znacznie trudniejsze, mniej skuteczne, a w wielu aspektach wręcz niemożliwe. W aspekcie militarnym zadaniem rozpoznania powietrznego jest pozyskanie danych o przeciwniku, jak również ocena rezultatów prowadzenia działań wojsk własnych. Celem niniejszego artykułu była identyfikacja parametrów taktyczno-technicznych charakteryzujących bezzałogowe statki powietrzne wykorzystywane w Siłach Zbrojnych RP, przeznaczone do prowadzenia rozpoznania powietrznego. Mając na uwadze powyższe, w pierwszej kolejności opisano istotę rozpoznania powietrznego, następnie ustalono rolę i miejsce BSP w rozpoznaniu powietrznym, scharakteryzowano platformy użytkowane przez polskie wojsko, a w dalszej części zestawiono oraz porównano je pod względem takich parametrów, jak: rozpiętość skrzydeł, maksymalna masa startowa, prędkość przelotowa, prędkość maksymalna, długotrwałość lotu oraz zasięg operacyjnego działania. Pozwoliło to zobrazować różnice w ich budowie, określić pewne zależności i właściwości oraz sporządzić wnioski końcowe. W artykule posłużono się takimi metodami badawczymi, jak: analiza, synteza, uogólnienie oraz porównanie
One of the main functions of unmanned aerial vehicles is aerial intelligence reconnaissance. It plays a leading role in time of peace, crisis or war. The reason for this is that without reliable and up-to-date data, planning of operations is much harder, less effective and, in many aspects, even impossible. In the military aspect, the aim of air intelligence is to provide data about the enemy, as well as to judge the results of the operations conducted by own forces. The purpose of this article is to identify tactical and technical parameters characterizing unmanned aerial vehicles used in the Polish Armed Forces, intended for air reconnaissance. With this in mind, the article firstly describes the essence of air reconnaissance, then establishes the role and place of UAV in air reconnaissance, characterizes the platforms used by the Polish military, and then compares and contrasts them in terms of such parameters as wingspan, maximum takeoff weight, cruising speed, maximum speed, flight duration and operational range. It helped to illustrate the differences in their construction, identify certain relationships as well as characteristics and draw final conclusions. In the article have been used methods of research such as analysis, synthesis, generalization and comparison.
Źródło:: Aviation and Security Issues; 2022, 2, 2; 47-63
2720-197X
2956-3380
Pojawia się w:: Aviation and Security Issues
Dostawca treści:: Biblioteka Nauki

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