Wyniki wyszukiwania - BazTech

1

Numerical and experimental research on the dynamic loads in military vehicles

Rybak P., Borkowski W., Wysocki J.

Journal of KONES

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2016

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Vol. 23, No. 4

435--441

EN

The work presents the fragments of research on the dynamic loads acting on selected military vehicles. Designing new armoured vehicles or introducing modifications is preceded by model tests carried out under various conditions, analysing the effect of dynamic loads which may result during the use of the vehicle, e.g. due to the roughness of the road, firing, IED explosions or the vehicle being hit by a shell. The main purpose of conducting model research and verifying their findings in experimental research is to improve the effectiveness and safety of operation of systems and installations of military vehicles, increase the dynamics of the movement, improve the protection and ensure that the crew is not killed. Among the used models of military vehicles, discrete models are applied, formulated in the adjusted Lagrange description, as well as the models based on the fine element method for highly nonlinear problems and forces acting for a very short time. Due to the unique selection of military equipment, the methods of calculation and analysis of model research (simulations) and experimental research presented in the work are considered qualitative rather than quantitative.

2

Badania drogowe nowego typu hamulca do pojazdu opancerzonego

Skorupka Z., Kajka R., Wróbel T.

Logistyka

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2011

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nr 6

PL

Pojazdy opancerzone stanowią ważny element wyposażenia współczesnej armii. Niezawodność tych pojazdów stanowi o bezpieczeństwie przewożonych nimi ludzi i towarów. Ze względu na wysoką masę własną pojazdów opancerzonych problemem staje się zapewnienie optymalnie działających hamulców, zapewniających z jednej strony rozsądną drogę hamowania a z drugiej akceptowalne koszty wytworzenia i użytkowania. Proces doboru parametrów, projektowania oraz późniejszej weryfikacji gotowego wyrobu jest procesem trudnym i czasochłonnym. Niniejsza praca przedstawia badania drogowe będące uzupełnieniem przeprowadzonych wcześniej badań laboratoryjnych hamulca pojazdu opancerzonego, projektu wykonanego w Pracowni Podwozi Lotniczych ILOT.

EN

This paper contains a description of road tests made on newly constructed brake for heavy transport car. Tests were performed in order to compare data and prove laboratory tests results of mentioned car brake. Tests were made using real vehicle on existing road in order to achieve reliable base for result analysis.

3

Protection of vehicles against mines

Śliwiński J.

Journal of KONES

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2011

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Vol. 18, No. 1

565-572

EN

The paper presents the threats posed by mines and IEDs (improvised explosive devices) to vehicles conducting different combat operations. The typical reaction of a pressure impulse after explosion was presented. The parameters of a pressure impulse having an impact on the hull underside were discussed. The graphic impact of the shape of the hull underside on the propagation of pressure wave resulting from the detonation of the explosive was presented. The structural solutions applied now in the world, able to protect the hull underside against mines, IEDs and RPG-rockets were discussed. The soldier protection means in form of seats with safety belts and protective clothing capable of minimising the impact of an explosion on soldiers in a vehicle were mentioned. A concept of a flexible explosive reactive armour being mounted underneath the hull of an armoured vehicle was presented. The structure of protective armour and its assembly to an armoured vehicle as well as the destructive impact of mines and IEDs containing both blasting charge and shaped charge utilising the principle of either the EFP or a shaped charged jet were discussed. Structural analysis on solutions used world-wide in vehicles resistant to mines was performed and their resistance to mine explosion under the hull and under the wheels was given. The idea of a vehicle with increased resistance to various mines, IEDs and RPG-rockets was presented. The vehicle's hull with suspended flexible explosive reactive armour having the rumple zone in the lower part and the RPG-net on sides, which is mounted to hull's movable arms was proposed. The advantages of proposed above structural solutions were discussed.

4

Additional protection measures for armored vehicles used in ISAF mission in Afghanistan

Kupidura P.

Zeszyty Naukowe Instytutu Pojazdów / Politechnika Warszawska

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2010

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z. 5/81

95-100

EN

As one of the most dangerous example of technical systems degradation, the combat loses of military vehicles can be regarded. Polish Army uses a wide array of vehicles with different protection levels, collecting unique experiences. There are two main threats for coalition forces in Afghanistan: Improvised Explosive Devices (IED) and small arm fire, including RPG firing. The first issue was solved in appropriate degree with adopting MRAP class vehicles. Also ballistic protection against small arm firing is better than existing threat. Finally anti-tank grenade launchers have became the most dangerous weapon recently.

PL

Straty bojowe techniki wojskowej można uznać za jeden z groźniejszych przypadków procesu degradacji systemów technicznych. Użycie przez Polskie Siły Zadaniowe szerokiej gamy pojazdów o zróżnicowanym poziomie ochrony pozwala na gromadzenie bezcennych doświadczeń; na ich podstawie można scharakteryzować dwa główne zagrożenia: improwizowane urządzenia wybuchowe oraz ostrzał z broni strzeleckiej – obejmującej też ręczne granatniki przeciwpancerne. Pierwsze z nich zostało znacznie zredukowane wraz z wprowadzeniem pojazdów „minoodpornych” klasy MRAP. Opancerzenie pojazdów zapewnia ochronę przed typową bronią strzelecką, tak więc najgroźniejszą bronią pozostają obecnie ręczne granatniki przeciwpancerne.

5

Developmental tendency of landmine protection in vehicle

Kania E

Modelling and Optimization of Physical Systems

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2009

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z. 8

67--72

EN

The aim of this paper is to provide an overview of developmental tendency of vehicle landmine protection. The background of the mine detonation process as well as its consequence on military vehicle and there occupant are presented. Analysis of requirements of armoured vehicle is described. Based on the current status, recommendations for future work are given.

PL

W artykule przedstawiono przegląd tendencji rozwojowych ochrony przeciwminowej pojazdów pancernych. Scharakteryzowano przebieg detonacji min, jej oddziaływanie na konstrukcje pojazdów wojskowych i ich pasażerów. Przeanalizowano obecne wymagania ochrony przeciwminowej. Przedstawiono również założenia do dalszych badań.

6

Rola i znaczenie pojazdów opancerzonych i samochodowych w działaniach bojowych wojsk lądowych

Kurasiński Z.

Zeszyty Naukowe AON

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2004

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nr 3(56)

237-257

EN

The article presents contemporary opinions on using vehicles in land forces’ combat operations. New tendencies of armoured vehicles and cars have been shown, guiding the reader to judge which of the presented vehicles would meet the land forces’ expectations. The considerations discussed in the article lead to the following conclusions: Tanks still remain one of the basic combat assets, particularly in offensive operations; The role of light and medium armoured carriers, perceived mainly as tactical level vehicles, significantly grows; A prompt development of light wheeled armoured carries should be forecast as they are principal combat assets, able to be moved by air with the troops on large distances; Light vehicles, both on caterpillar or car chassis, will still be used as basic vehicles with special (car) bodies.