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Wyszukujesz frazę "dynamic characteristics" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
The analysis of the parameters of the materials used for antiterrorist safety shields in marine vessels
Autorzy:
Kyzioł, L.
Czapczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/245513.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
ballistic shields
high resistance steel
dynamic characteristics
analysis
penetration
perforation
Opis:
Selected parameters of steel for constructional ballistic shields used in the Navy vessels have been presented. The standards for steel to be used for ballistic shields are established by safety standards institutions and committees. The analysis has been made upon currently available national and international steel types. The analysis made allowed to select the types of steel with the best parameters to be used for ballistic safety shields in marine vessels and give the direction for further research determined by contemporary threats of both military and terroristic nature. The paper presents inter alia: macroscopic images of a crater filled with the remains of grinded and eroded rifle missile with traces of adiabatic shear in the cut of steel disc, the diagram of a vessel of special purpose equipped with shields made of metal plates the Polish Register of Marine Vessels requirements for mechanical parameters of mild-alloy steel and welded joints of high resistance, the stress - strain diagram for steel 10GHMBA-E620T in speed of movement function, chemical constitution and resistance properties of representative steels used for ballistic shields on American and Japanese naval ships, chemical constitution of selected Swedish steels of high resistance applied for ballistic shields.
Źródło:
Journal of KONES; 2011, 18, 3; 185-192
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propulsion characteristics of multi-mode ships in aspect of ships dynamic positioning application
Autorzy:
Herdzik, J.
Powiązania:
https://bibliotekanauki.pl/articles/243980.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
ships propulsion
propulsion characteristics
multi-mode ships
dynamic positioning systems
Opis:
The dynamic positioning systems require multi-element ship propulsion application. The chosen solutions have decisive effect on propulsion system possibilities, in ship dynamic positioning accuracy also. The automation system has an essential influence on it, because it is an integral part with propulsion system mponsible for this process. The most often ship propulsion solution based on unconventional thrusters driven by electric motor s also. A few independent propulsion systems is essential but it complicates this system, it is limited the number (most often to 4, seldom more up to eight). There are no solutions with traditional rudder and steering gear. These functions take over azimuthing thrusters because they can generale directional thrust force. It must be settle the question of the number of thruster choose and the span angle of azimuthing (most often by thruster turning). In that case it gets the possibilities of ship positioning, they may display as propulsion system characteristics, giving a view on ąuality of positioning process. The last veriflcation is made in real sea conditions when it may test if chosen solution of ship propulsion system fulfils the requirements of positioning accuracy. It was presented the examples of multi-mode ship propulsions and parameters of theirs propulsion plants.
Źródło:
Journal of KONES; 2010, 17, 3; 127-134
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary determination of the JET-2 unmanned aerial vehicle dynamic performances
Autorzy:
Kowaleczko, G.
Powiązania:
https://bibliotekanauki.pl/articles/247554.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
unmanned aerial vehicle
JET-2 plane
aerodynamic characteristics
dynamic performances
Opis:
The paper presents result of theoretical analysis of the spatial dynamic performances for an unmanned aerial vehicle (UAV). This drone is designed and produced by consortium consisted of The Air Force Institute of Technology, The Military University of Technology, The Warsaw University of Technology and The MSP enterprise. A plane JET-2 is the jet-powered airplane dedicated for Polish Military Forces. It will be used in the training process of anti-aircraft crews. Because of high level of requirements (maximum speed, stall speed, climb rate, range and endurance), it has been designed as the jet-powered aircraft. This plane will perform autonomous flights and therefore it should be stable in all phases of flight – static and dynamic stability is desirable. Therefore, the theoretical analysis focused on the stability performances have been performed, parallel to laboratory tests. They were done using nonlinear mathematical model of the JET-2. This model will be described in the paper as well as selected results of numerical simulations. The UAV JET-1 parameters and main parts of the system with the performances as the take-off mass 80 kg, the maximum speed 150 m/s, the endurance 60 min, the altitude 5000 m are presented in the paper.
Źródło:
Journal of KONES; 2014, 21, 4; 256-262
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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