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    Wyświetlanie 1-11 z 11
    Tytuł:
    Analiza możliwości integracji hybrydowego zespołu napędowego z bezzałogowym aparatem latającym dla założonej misji
    Analysis of integration capabilities of hybrid-electric propulsion system in an unmanned aerial vehicle for a determined mission
    Autorzy:
    Wołoszyn, T.
    Jakubowski, R.
    Orkisz, M.
    Wygodnik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/134079.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    bezzałogowy aparat latający
    hybrydowy zespół napędowy
    misja
    unmanned aerial vehicle
    hybrid-electric propulsion system
    aerial mission
    Opis:
    W artykule podjęto tematykę związaną z określeniem warunków implementacji hybrydowego zespołu napędowego w bezzałogowym statku latającym. Stanowi to próbę wypełnienia niszy, jaka widoczna jest w obszarze aplikacji napędów alternatywnych w lotnictwie. W tym celu przeanalizowane zostały zarówno aspekty działania napędów hybrydowych (zwłaszcza w ujęciu gospodarki energią) jak i kryteria doboru zespołu napędowego do obiektów latających. Punktem wyjściowym dla prowadzonych rozważań jest przyjęta misja lotnicza, na którą składa się określony profil ruchu obiektu latającego oraz zadania jakie ma on wykonać (wynikające z założonych warunków taktyczno-technicznych i przeznaczenia statku powietrznego). Przebieg misji lotniczej oraz charakterystyki obiektu latającego pozwalają na określenie zapotrzebowania na energię, niezbędną do wykonania przyjętego zadania, co jest podstawą do wyboru konfiguracji hybrydowego zespołu napędowego i zdefiniowania trybów jego pracy. Przedstawione w pracy rozważania stanowią bazę dla sformułowania wniosków, dotyczących sposobu dopasowania hybrydowego zespołu napędowego do zadania lotniczego realizowanego przez bezzałogowy statek powietrzny.
    The paper presents issues concerning an utilisation of a hybrid-electric propulsion system (HEPS) in an unmanned aerial vehicle (UAV). It is an attempt of fulfilling a gap of alternative propulsions within aerial applications. The elaboration contains both analysis of HEPS energetic aspects and aerial propulsion systems selection criterions. Presented considerations base on the assumed mission, which includes motion profile and given tasks (derived from tactical and technical conditions and aircraft purpose). The characteristics of mission and aircraft allow to determine power requirements which enable to select proper configuration of the HEPS and to define its states of work. Presented deliberations may help to formulate conclusions on matching the HEPS to the mission of the UAV.
    Źródło:
    Combustion Engines; 2013, 52, 3; 556-561
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of a hybrid manual - electric wheelchair propulsion system on the users muscular effort
    Autorzy:
    Wieczorek, Bartosz
    Warguła, Łukasz
    Kukla, Mateusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2204666.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    assistive technology
    wheelchair
    electromyogram
    EMG
    electric propulsion
    control
    Opis:
    Self-propelled wheelchairs favour the rehabilitation process, forcing the user to be physically active. Unfortunately, in most cases, the manual propulsion is not adapted to the individual needs and physical capabilities of the user. This paper presents the results of operational tests of a wheelchair equipped with a hybrid propulsion system in which the muscle strength generated by the user is assisted by two independent electric motors. The research aimed to investigate the influence of the applied control algorithm and the assistance factor (W) on the value of the muscular effort (MA) while propelling the wheelchair with the use of push rims. A modified ARmedical AR-405 wheelchair equipped with two MagicPie 5 electric motors built into the wheelchair’s hubs with a power of 500 W was used in this research. The tests were carried out on a wheelchair test bench simulating the moment of resistance within the range of 8–11 Nm. Surface electromyography was employed for the measurement of MA, specifically, a four-channel Noraxon Mini DTS apparatus. The research was carried out on five patients from the group of C50 anthropometric dimensions. The effort was measured for four muscles: deltoid–anterior part, deltoid–posteriori part, and triceps brachii and extensor carpi radialis longus. The effectiveness of the hybrid propulsion system was observed based on the extensor carpi radialis longus muscle. In this case, for the standard wheelchair, the MA ranged from 93% to 123%. In contrast, for a wheelchair equipped with the hybrid propulsion system, at W = 70%, the MA was within the range of 43%–75%.
    Źródło:
    Acta Mechanica et Automatica; 2023, 17, 1; 28--34
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reliability evaluation of electrochemical energy storage systems supplying the ships main propulsion system
    Autorzy:
    Szewczyk, P.
    Łebkowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/24201455.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    reliability assessment
    electric propulsion system
    energy storage systems
    electric ship
    reliability block diagram
    probability of failure occurrence
    hybrid electric-propulsion system
    Opis:
    The paper presents the structure of hybrid and electric modern ship propulsion systems. Types and configuration of electrochemical cells for selected electric energy storage facilities on the ship were presented. The method and results of reliability analyses, such as failure mode effect analysis (FMEA), reliability block diagram (RBD) and fault tree analysis (FTA), used to estimate the probability of failure of the energy storage systems supplying the ship's main propulsion, are presented. Methods of evaluation and verification of the proposed reliability model using a laboratory model and available operational and service data are discussed. A proposal for a quantitative risk analysis of potential damage during the operation of the energy storage has been presented.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 1; 87--94
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Energy balance comparison of small unmanned vehicle equipped with electric and hybrid propulsion system
    Autorzy:
    Polak, Filip
    Powiązania:
    https://bibliotekanauki.pl/articles/2097465.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    hybrid propulsion
    unmanned ground vehicle
    UGV
    electric propulsion
    energy balance
    napęd hybrydowy
    bezzałogowy pojazd naziemny
    napęd elektryczny
    bilans energetyczny
    Opis:
    Article presents comparison of the energetic balance of vehicle powertrain - pure electric vehicle and vehicle equipped with electric hybrid power transmission. Society is more and more often persuaded to buy electric cars as an environmentally friendly solution because they have opinion of ecological vehicles. Electrification in military applications is also widely considered, especially in case of small to medium UGV’s such as wide range of robotic systems introduced to the milatary operations. The article presents the problems of comparing the efficiency and others parameters such as the range of a two presented powertrains. The research was carried out on an small unmanned land platform equipped with a hybrid propulsion system supplied as standard with Diesel power generator and electrically only powered. Energy used for charging of the battery, from tank-to-wheel, was calculated. This also enables to calculate total efficiency of electric and hybrid power transmission. By calculating different capacity of battery and power of generator, it is possible to determine the vehicle range.
    Źródło:
    Combustion Engines; 2020, 59, 3; 23--27
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Propulsion module for unmannned vehicle
    Autorzy:
    Polak, F.
    Szczęch, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/244495.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    unmanned vehicle
    hybrid propulsion system
    UGV
    electric generator
    electric propulsion motor
    Opis:
    Solution of the propulsion system of the unmanned vehicle elaborated and built in the Laboratory of Internal Combustion Engines Military University of Technology is shown in the paper. Unmanned vehicles are about to play key role in modern warfare. There are many types of unmanned vehicles. Those which can operate in urban areas, especially inside buildings are considered as a most useful for modern army. Most unmanned vehicles are battery operated, causing low range or low speed of the vehicle. Internal combustion engines are not proper for operation inside buildings, due to exhaust gases produced by engine. Connecting two types of propulsion system, defect of range in battery and gases in combustion engines are eliminated, because we can program vehicle to not turning on engine inside buildings. Using a module for those types of vehicles, we can design entire gamut of unmanned and even manned vehicles, decreasing design costs and repair time due to parts repeatability. Using a prepared propulsion module, design engineer can freely determine length, width and wheel track of designed vehicle. Designed modules enable vehicle fast return to combat ability, due to parts repeatability. One module, used as a host, can reconstruct damage vehicle. There is possibility of using different engines, enlarging list of available modules. Economic factor has also big meaning, due to parts repeatability.
    Źródło:
    Journal of KONES; 2011, 18, 1; 479-482
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza właściwości hybrydowego układu napędowego w aspekcie zastosowania w bezzałogowym statku powietrznym
    Analysis of the hybrid propulsion system in the aspect of use in an unmanned aerial vehicle
    Autorzy:
    Merkisz, J.
    Markowski, J.
    Karpiński, D.
    Galant, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/132856.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    silnik elektryczny
    silnik spalinowy
    napęd hybrydowy
    electric engine
    internal combustion engine
    hybrid propulsion system
    Opis:
    Rozwój bezzałogowych statków powietrznych ukierunkowany jest na sprostanie wielu wymagań związanych z nowymi funkcjami zastosowania. Jednym z nich jest uzyskanie możliwie długiego czasu wykonywanej operacji lotniczej. Realizacja tego zadania ściśle wiąże się z konstrukcją płatowca oraz konstrukcją układu napędowego. W artykule przedstawiono zagadnienia oceny możliwości doboru hybrydowego układu napędowego przeznaczonego do zastosowania w bezzałogowym statku powietrznym. Wybrano napęd śmigłowy złożony z silnika elektrycznego oraz spalinowego, stanowiącego źródło zasilania akumulatorów. W celu doboru silnika spalinowego określono zapotrzebowanie na moc potrzebną do zasilania napędu śmigłowego. Na podstawie badań wykreślono charakterystyki pracy wybranych napędów, które wykorzystano do opracowania wariantów hybrydowego układu napędowego.
    The development of unmanned aerial vehicles is focused on imposed requirements for new field of application this type of aircraft. One of them is possibility to perform of the air operation in the long term. This task is closely associated with the design of the airframe of an aircraft and the propulsion system. The paper presents the evaluation of the possibility of selecting the hybrid propulsion system for the unmanned aerial vehicle. A propeller drive consisting of an electric engine and a internal combustion engine to charging the batteries was chosen. In order to select the internal combustion engine was determined of requirements for engine power needed to power a propeller drive. On the basis of research were plotted performance characteristics for the selected engines, which were used to develop of variants of the hybrid drive system.
    Źródło:
    Combustion Engines; 2015, 54, 3; 383-391
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of the Possibility of Using Hybrid Electric-Propulsion Systems for Inland Barges
    Autorzy:
    Łebkowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/117239.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    inland shipping
    inland barges
    main propulsion
    hybrid electric-propolsion
    hybrid electric-propulsion system
    electric propulsion system
    self-propelled barges
    inland water transport
    Opis:
    The paper presents issues related to the possibility of using an electric propulsion system for inland craft, in this particular case self-propelled barges. Perspectives for development of inland water transport in Poland are presented. Historical engineering designs used in water transport at the turn of the 19th and 20th centuries are shown. The current status of stock used in inland navigation along with the condition of waterways available in Poland is presented. Energy consumption by inland craft using various configurations of propulsion systems is discussed, along with comparison of energy consumption during transport of goods using road transport, rail transport and inland waterway transport. In addition to the hybrid electric and diesel propulsion systems, the alternative is to use the electric rail mules for moving the barges.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 261-269
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-source-supplied parallel hybrid propulsion of the inland passenger ship STA.H. Research work on energy efficiency of a hybrid propulsion system operating in the electric motor drive mode
    Autorzy:
    Kowalski, J.
    Leśniewski, W.
    Litwin, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/259623.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    hybrid ship propulsion
    ship propulsion
    Opis:
    In the Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology, design has recently been developed of a small inland ship with hybrid propulsion and supply system. The ship will be propelled by a specially designed so called parallel hybrid propulsion system. The work was aimed at carrying out the energy efficiency analysis of a hybrid propulsion system operating in the electric motor drive mode and at performing the noise pollution measurements. The performed investigations have shown that a significant impact on the efficiency and on the acoustic emission has the type of belt transmission applied.
    Źródło:
    Polish Maritime Research; 2013, 3; 20-27
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An application of the heat accumulator and improvement of the DC-DC converter for hybrid-electric vehicles
    Autorzy:
    Kosztyła, T.
    Tutaj, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/245370.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    simulation
    road transport
    DC-DC converter
    propulsion system
    heating system
    hybrid vehicle
    Opis:
    In this article, both problems of the internal combustion-engine’s thermal equilibrium as well as improving the DC-DC converter’s operation in the hybrid-electric vehicle’s propulsion system. The purpose of the proposed amendments is to increase the energy efficiency of the hybrid-electric vehicle’s propulsion system. Such a hybridelectric vehicle in city traffic is characterized by intermittent operation of the internal combustion engine with long pauses, which causes difficulty in obtaining and maintaining the desired operating temperature of the internal combustion engine, especially at low outdoor temperatures and intensive use of the heating system inside the hybridelectric vehicle. The result is the increased emission of noxious exhaust gas components and increased fuel consumption. The proposed solution to this problem is to apply heat accumulator in the cooling system. It is stored in the waste heat from the cooling system used to obtain and maintain the internal combustion engine’s nominal operating temperature. The paper presents the results of simulation analyses the impact of applying heat accumulator in the hybrid-electric vehicle driving in city traffic, at different ambient conditions, such as: air temperature, internal combustion engine’s load and the frequency and length of stops. The proposed algorithm for controlling the circulation of the cooling liquid ensures as soon as possible to achieve and maintain the internal combustion engine’s temperature. Furthermore, the temperature of the operating medium can be adjusted depending on the operating conditions of the internal combustion engine. Experimental studies, on the example of the Toyota Prius and Yaris, confirmed the desirability of the use of the proposed solution. Improving the DC-DC converter’s current is to change the configuration by the use of a two-phase DC-DC converter – instead of a single-phase DC-DC converter, supplying a DC-AC inverter of the DC motoring the hybrid-electric vehicle’s propulsion system. This article also includes waveforms for comparison of the properties of both DC-DC converters.
    Źródło:
    Journal of KONES; 2016, 23, 3; 263-270
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A rotating piston engine with electric generator in serial hybrid propulsion system for use in light aircraft
    Autorzy:
    Kalwara, Maciej
    Kuźniar, Michał
    Orkisz, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2097559.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    hybrid
    combustion engines
    motor glider
    rotary engine
    Wankel engine
    hybrid propulsion
    hybryda
    silniki spalinowe
    motoszybowiec
    silnik rotacyjny
    silnik Wankla
    napęd hybrydowy
    Opis:
    Analysis of the possibility of using a rotary engine based electric generator to propell a powered sailplane. The paper presents analysis of utilising Wankel type enine as a power input for an electric generator in the motor glider propulsion system. This generator would be a part of the propulsion system of a hybrid motor glider using the AOS 71 motor glider airframe. In the research, the rotational characteristics of the LCR 407ti wankel engine were determined experimentally. Driving torque run, power and fuel consumption were determined as a function of engine speed. The obtained results are presented in diagrams. The conceptual diagram of the hybrid drive is presented. The electric generator was selected and its effectiveness, as well as the effectiveness of entire propulsion system was assessed from the motor glider's performance point of view. Basing on the research conducted, conclusions were drawn and there were indicated the objectives and directions of further research on hybrid propulsion with specific aerodynamic and mass limitations of the aircraft.
    Źródło:
    Combustion Engines; 2021, 60, 4; 42--45
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of the unmanned vehicle hybrid propulsion system
    Autorzy:
    Baszuk, K.
    Szczęch, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/243705.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    unmanned vehicle
    hybrid propulsion system
    UGV
    electric vehicle
    electrical parameters measurements
    Opis:
    Investigation scheme of the unmanned vehicle is shown in the paper. It is the unmanned vehicle planned to use in military application. Using the unmanned vehicles on modern war field is increasingly popular. The unmanned vehicle is powered with a hybrid propulsion system. The main source of energy is diesel engine and electric generator. It supplies the battery and six propulsion electric motors. In the propulsion system is a lot of components: controllers and electric devices. Is important to know how it works in load condition. Investigation stand was constructed to break all drive wheels. There will be done measuring of electric parameters of the hybrid propulsion system. Temperature of the battery and electric motors, fuel consumption of internal combustion engine needed to appreciate of load and energy balance will be measured as well. Investigation equipment which will be used during investigation is also performed in the paper.
    Źródło:
    Journal of KONES; 2011, 18, 1; 53-56
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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