Wyniki wyszukiwania - BazTech

1

Uniwersalna modułowa platforma gąsienicowa nośnikiem uzbrojenia i specjalistycznego wyposażenia

Kurpas M., Holota M.

Szybkobieżne Pojazdy Gąsienicowe

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2016

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nr 3 (41)

7--21

PL

W artykule odniesiono się do aktualnie obowiązujących dokumentów normatywnych regulujących proces pozyskiwania sprzętu wojskowego i usług dla Sił Zbrojnych Rzeczypospolitej Polskiej (SZ RP). Omówiono stan prac nad opracowaniem Uniwersalnej Modułowej Platformy Gąsienicowej (UMPG) jako podwozia bazowego. Zaprezentowano możliwości realizacji przez przemysł krajowy UMPG, bazującej na wynikach i wnioskach dotychczas zrealizowanych projektów. Przedstawiono możliwe do realizacji odmiany gąsienicowych pojazdów lądowych o różnym przeznaczeniu wykorzystujące UMPG jako podwozie bazowe.

EN

Reference is made in the article to the current normative documents regulating the process of acquiring military equipment and services for the Armed Forces of the Republic of Poland (AF RP). The progress of work on developing a Universal Modular Tracked Platform (UMPG) as base chassis is discussed. The feasibility of manufacture of UMPG by the Polish industry is presented based on the results of completed projects and conclusions drawn therefrom. The various variants of tracked land vehicles of various application using UMPG as the base chassis are presented.

2

Universal modular tracked platform as a carrier for armament and special equipment

Kurpas M., Holota M.

Szybkobieżne Pojazdy Gąsienicowe

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2016

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nr 3 (41)

67--80

EN

Reference is made in the article to the current normative documents regulating the process of acquiring military equipment and services for the Armed Forces of the Republic of Poland (AF RP). The progress of work on developing a Universal Modular Tracked Platform (UMPG) as base chassis is discussed. The feasibility of manufacture of UMPG by the Polish industry is presented based on the results of completed projects and conclusions drawn therefrom. The various variants of tracked land vehicles of various application using UMPG as the base chassis are presented.

3

Transformation of the T-72 main battle tanks

Kurpas M., Holota M.

Journal of KONES

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2015

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Vol. 22, No. 1

173--180

EN

The paper presents a proposal to transformation, in the direction of modernization and modification or conversion, decommissioned weapons to be reused in different versions of engineering vehicles. The process is illustrated with the example of the T-72 tank. The solutions presented in this paper describe the possibilities of constructing new tracked vehicles of various use at relatively low cost. Reusing of the vehicle can be also the most economical way to extend the product lifecycle of special purpose. Conversion of armoured equipment into products for other purposes may constitute a new stage in the product lifecycle that precedes the disposal phase. Initial conceptual work carried out at OBRUM Ltd. confirms the feasibility of a quick conversion of the T-72 tank into engineering vehicles in few versions, recovery vehicle with extended basic equipment with a view for further development. The proposed methodology may be used as a commercial offer of the Ośrodek Badawczo Rozwojowy Urządzeń Mechanicznych “OBRUM” sp. z o.o. (Research and Development Centre Mechanical Equipment “OBRUM” Ltd.) and Polka Grupa Zbrojeniowa (Polish Armaments Group) (PGZ) (in the form of know-how (upgrade packages) or deliveries of complete vehicles different designation particularly to countries that have T-72 tanks in service.

4

Model testing of stabilising and tracking control system in main battle tank

Papliński K. M.

Journal of KONES

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2015

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Vol. 22, No. 4

221--226

EN

The subject of discussion is a tank gun stabiliser (in azimuth and elevation). For the investigation of the considered control system one applied a method of computer simulations. The mathematical model and its numerical implementation were experimentally verified. The results of experimental and model simulation investigations showed that the mathematical model and its numerical implementation were worked-out correctly. Using the verified mathematical model of the system, the simulation investigations of the influence of regulation potentiometers settlings on stabilisation exactness and transient processes quality were carried-out. The possibilities of improving performance characteristics of the stabiliser via altering of feedback’s gain coefficients as well as the influence of disturbing inputs amplitude and frequency (propagated from the hull on the gun and turret) on stabilisation exactness of a given position were also analysed. The presented technique is quite general and may be applied to any type of vehicle to study dynamic effects of several rigid bodies, which move relative to each other (when displacements are small) and are connected by constraint equations.

5

Mathematical model of stabilising and tracking control system in main battle tank

Borkowski W., Hryciów Z., Papliński K. M., Rybak P., Wysocki J.

Journal of KONES

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2015

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Vol. 22, No. 4

43--52

EN

The aim of this researches was to identify all functional blocks of tank gun stabiliser 2E28M (installed in tanks T-72 and PT-91 Twardy) in order to build mathematical model of the system. The tank gun stabiliser is an electro-hydraulic control system, which makes possible aiming at a target, tracking of a target and stabilise of a given gun and turret angular position. The two-axial stabiliser consists of two separate control systems to stabilise the gun in elevation and the turret (with gun) in azimuth. After detailed analysis of construction and work principles, functional schemes of investigated systems were build. Afterwards, static and dynamic characteristics of functional parts of the system were determined. Because of obtained characteristics and based on the knowledge about the system feedbacks, structural schemes and mathematical models of foregoing stabiliser were derived. The results of numerical computations were compared with the existing results of experimental tests carried-out on a real plant. The results of experimental and model simulation investigations showed that the mathematical model and its numerical implementation were correctly developed.

6

Operating loads of impulse nature acting on the special equipment of the combat vehicles

Rybak P.

Eksploatacja i Niezawodność

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2014

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Vol. 16, no. 3

347--353

EN

Providing the combat vehicles with high operation effectiveness, safety and reliability during execution of complex tasks makes a priority. Therefore the armament and the military equipment have to meet very high requirements in that aspect when used in various conditions. This paper presents basic sources of dynamic loads affecting the combat vehicles. Attention is paid to the loads of impact nature as they mostly affect the effectiveness and reliability of a vehicle, electronic equipment and psychophysical condition of the combat vehicle crew. These loads result from off-road drives, firing the gun, the influence of the land mines or IED, hitting by enemy’s missile. As a result, some fragments of the experimental and model tests on combat vehicles are presented. Results of these tests can be helpful when designing internal vehicle equipment including special equipment. Particularly in the aspect of normative requirements for that class of vehicles and their special equipment.

PL

Zapewnienie wozom bojowym wysokiej skuteczności działania, bezpieczeństwa oraz niezawodności podczas realizacji złożonych zadań jest traktowane priorytetowo. A zatem uzbrojenie i sprzęt wojskowy musi spełniać bardzo wysokie wymagania w tym aspekcie podczas eksploatacji w różnych warunkach. W pracy przedstawiono podstawowe źródła obciążeń dynamicznych działające na wozy bojowe. Uwagę skupiono na obciążeniach mających charakter udarowy, gdyż one głównie wpływają na sprawność i niezawodność pojazdu, urządzeń wewnętrznych i stan psychofizyczny załogi. Obciążenia te wynikają z jazd terenowych, strzelania z armaty, oddziaływania miny lub IED, trafienia pociskiem przeciwnika. W rezultacie przedstawiono niektóre fragmenty z badań eksperymentalnych i modelowych wozów bojowych. Wyniki tych badań mogą być pomocne przy projektowaniu urządzeń wewnętrznych pojazdu w tym urządzeń specjalnych. Szczególnie w aspekcie wymagań normatywnych dla tej klasy pojazdów oraz ich urządzeń specjalnych.

7

Właściowości trakcyjne gąsienicowego wozu bojowego przy obniżonej mocy silnika napędowego

Borkowski W., Rybak P., Michałowski B., Wysocki J., Hryciów Z.

Biuletyn Wojskowej Akademii Technicznej

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2010

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Vol. 59, nr 1

210-223

PL

Współczesne i przyszłe pole walki charakteryzować się będzie dużą dynamiką działań zarówno w działaniach obronnych, jak i zaczepnych. Może się zdarzyć, że nie zawsze do pododdziałów pancernych i zmechanizowanych działających w pierwszym rzucie dotrze zaopatrzenie materiało-wotechniczne. Dotyczy to szczególnie paliwa do silników napędowych pojazdów. Dlatego też w wielu wypadkach do ich zasilania (jako silników wielopaliwowych lub przystosowanych do pracy na paliwach zastępczych) wykorzystywane może być paliwo zastępcze. Paliwo, którego parametry niekiedy znacznie różnią się od parametrów oleju napędowego. Istotne jest zatem, aby przy planowaniu zadań bojowych móc oszacować ich dynamikę. W pracy podjęto próbę oszacowania właściwości dynamicznych pojazdu przy zasilaniu paliwami zastępczymi. Przedstawiono wyniki obliczeń trakcyjnych gąsienicowego wozu bojowego oraz wpływ zasilania silnika paliwem odnawialnym na jego ruchliwość.

EN

Modern and future battle field will be characterized by high dynamics of operations, both defensive and off ensive ones. It is possible, that armoured troops of the first attack will suffer from shortages of supplies of materials and other equipment, especially propellants. That is why, in many cases, it is practised to adapt engines to various fuels. Substitute propellants, as a rule, have lower combustion features and they demand special treatment, e.g., aviation petrol in diesel engines. It is substantially important to know the influence of substitutes on the dynamics of vehicles. The paper describes the attempt to estimate dynamic features of combat vehicles using substitute propellants. The results of traction calculations of tracked combat vehicle were shown and impact of powering with renewable fuel on the vehicle mobility was presented.

8

Test of impact resistance of tracked combat vehicle

Borkowski W., Rybak P.

Journal of KONES

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2009

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Vol. 16, No. 1

51-58

EN

Among combat vehicles high values have tracked combat vehicles. They are the most universal means of combat, both in offensive and in defense actions. About the usefulness of tanks decide the main battle features, which will include fire power, protection and mobility. The fire power is a feature that describes the quantity, quality and efficiency in terms of the main weapons system. Mobility of tanks reflects the dynamics of motion and manoeuvr ability. On the mobility a large impact has: engine, transmission and tracked drive system. Protections (armour, together with additional systems) decide on the resistance to the enemy fire and the survival ability of the vehicle, crew and internal equipment. This paper presents the impact loads on a load -bearing structures of combat vehicle. Load is generated by the anti-tank mine shock wave. Models ofobjects were worked out using a method of the finite element, assuming the linear characteristics of elements. Studies of loads of the structure of the special vehicle body were carried outfor the selected, the most common effects of explosives. Worked out research allows: determining the pressure distribution, evaluating the impact resistance of the hulls of vehicles, predicting the results of impact action, identifying the types of damage, designing or modernization of the hulls of vehicles.

9

PT-91M. what Polish army thinks abort this?

Chodkiewicz K.

Journal of KONES

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2009

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Vol. 16, No. 1

69-76

EN

The article describes the new products of Zaklady Mechaniczne „BUMAR-Łabedy" S.A. developed on the order of Malaysia Government and in particular - PT-91M MBTs, WZT-4 Armoured Recovery Vehicles, PMC- LEGUAN Armoured Vehicles Launched Bridge , MD-M Armoured Engineering vehicles as well as the training simulators and stands, Majority of the new design solutions used within the vehicles have been specified but due to commercial secret only generally without detailed description. Author pays attention to innovatory design solution of WZT-4 Armoured Recovery Vehicles, which is unified with MID-M Armoured Engineering Vehicles and the base MBT. Such solution is extremely essential considering logistical and training matters. Test runs which have been conducted both in Poland and Malaysia under tropical conditions and endurance test results have been described. Sets of training stands making training process of service and maintenance easier have been also presented briefly. The material includes a dozen or so photos which depict novelties and evidence run of the tests. The article is a proposal to undertake the issue for modernization of Polish Armoured Forces by the only all over the world reliable industrial centre for modernization of T-72 tanks family which are Companies collected in BUMAR Group.

10

Mathematical model of the main battle tank witch stabilized turret and gun

Papliński K. M.

Journal of KONES

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2009

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Vol. 16, No. 1

387-395

EN

The subject of discussion is the T-72 main battle tank. The tank is treated as three distinct bodies, representing thull, the turret and the gun. The rigid bodies are subject to a set of kinematics constraint relationships, which provide the physical interface of the system. The gun and turret are assumed to bend in the elevation and azimuth direction. Angular and axial displacements of vehicle are the input signals acting on the turret and the gun. The tank gun stabiliser, minimise the effects of vehicle motion on the main armament of tank and compensates the velocities of the vehicle. Stabilisation system, automatically maintain the position of the gun at a fixed bearing in space, in spate of any motion of the vehicle in roll, inpitch or in yaw. Mathematical model of the tank, the turret and the gun functioned as one system with the model of tank gun stabiliser (verified on the base of experimental investigations) were build. The equations of motion associated with a military tank are derived using Lagrange equations. In the next stage of the work the mathematical model could be used for versatile numerical tests of existing, modernized types of combat vehicles.

11

Mathematical model of stabilising and tracking control system in main battle TANK5

Papliński K. M.

Journal of KONES

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2008

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Vol. 15, No. 3

425-431

EN

The tank gun stabiliser is an electro-hydraulic control system which makes possible aiming at a target, tracking of a target and stabilise of a given gun angular position. The two-axial stabiliser consists of two separate control systems to stabilise the gun in elevation and the turret (with gun) in azimuth. The aim of researches was to identify all functional blocks of tank gun elevation stabiliser 2E28M (installed in tanks T-72 and PT-91 Twardy) in order to build mathematical model of the system. After detailed analysis of construction and work principles, schematic of 2E28M hydro-mechanical powered mounting, showing number of energy conversion were worked out. Stabiliser has been divided into appropriate functional parts and functional scheme of investigated system were build. Afterwards, static and dynamic characteristics of functional parts of the system were determined. On the basis of obtained characteristics and based on the knowledge about the system feedbacks, structural scheme and mathematical model of foregoing stabiliser were derived. On the basis of the mathematical model, the algorithm and the computer program were worked - out. Making use of the Matlab-Simulink program, one worked-up the scheme for numerical computation. The mathematical model and its numerical implementation have been experimentally verified.