Wyniki wyszukiwania - Biblioteka Nauki

1

Dynamic loads on the roof plate of the wheeled carrier during the firing of a 30 mm cannon

100%

Wiśniewski A.

Archiwum Motoryzacji

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2023

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tom Vol. 99, nr 1

53--65

EN

On the battlefield, modern vehicles perform a variety of roles. Transportation is one of the most fundamental. Operating in different terrains, including urban areas, means exposing the crew to different hazards. To increase crew protection, passive and active protection systems are used. On the other hand, in addition to protection, support of the infantry in offensive operations is an equally important activity. The most common solution for medium wheeled vehicles is a manned turret. The weapon is a 30 mm cannon. Nowadays, there is a trend towards installing systems that allow such weapons to be operated remotely. This minimises the exposure of highly trained personnel. This paper presents the results of a numerical study of the dynamic loads on the roof-plate structure of a wheeled armoured personnel carrier resulting from the firing of the vehicle's main armament. It includes the values of the strains and stresses in the upper plate structure and the forces transmitted by the brackets connecting the roof plate to the bottom plate, and an assessment of the risk of using such a system on the safety of the vehicle structure and its crew.

2

The assessment of the influence of selected passive safety systems on the level of dynamic loads of soldiers during collision

88%

Hryciów Z.

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2013

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tom Vol. 20, No. 3

161--168

EN

The work describes chosen problem connected with using of armoured personnel carriers (APC) in the frame of military operations. The soldiers inside the APC are exposed to dynamic loads and shock which are, among other things, an effect of collision with other vehicle or terrain obstacles. In military vehicles, which design is based on a rigid frame or integral body, there is no technical solution to mitigate the effects of a crash. The only applicable means of protection against the effects of collisions are lap belts and helmet designed to protect the head. Preliminary research shows that this kind of equipment is not sufficient. In the work an assessment of the influence of chosen solutions of safety belts and helmets on dynamic loads of carrier’s crew during collision with a rigid obstacle are presented. In simulation researches the HYBRID III dummies models have been used and calculations were carried out in LS-DYNA system. The work shows the numeric test results. Behaviour of the dummies during the impact on both the driver and crew member were presented. To assess a risk of injury standard indicators of crash test were used, including: maximum value of the head acceleration and the maximum values of the forces and moments in the neck. The distributions of these parameters were presented. The assessment of applied passive safety systems was made from the point of view of treat to soldiers inside a carrier.

3

Analysis of dynamic loads of the armoured personnel carrier crew during frontal crash

88%

Hryciów Z.

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tom Vol. 19, No. 4

223-230

EN

The work describes chosen problem connected with using of armoured personnel carriers (APC) in the frame of stabilisation and peacekeeping mission. The new type of tasks appears: ramming obstacles such as fences, entry gates, light engineering obstacles and also pushing other vehicles aside the road in order to obtain trafficability. The main threat in such situation is a risk of serious injury of soldiers inside vehicle. The lack of a crumple zone increases a value of acceleration acting on the crew. In the work models of driver and crew member seats used in the APC were showed. To the tests a Hybrid III 50th male dummy model in a seated position were used, which is a good representation of the average population of men. To the modelling LS-DYNA software was applied. The work shows the numeric test results. Behaviour of the dummies during the impact on both the driver and crew member were presented. To assess a risk of injury standard indicators of crash test were used, including: maximum value of the head acceleration, the criterion HIC and the maximum values of the forces and moments in the neck. The distributions of these parameters were presented. Results of simulation indicated that velocity and location of dummies has large influence on levels of dynamic loads. To further research is proposed to take into consideration models of dummy with additional equipment of soldiers (e.g. a helmet, a weapon, a bullet-proof jacket).

4

Przypadki użycia improwizowanych urządzeń wybuchowych

75%

Motrycz G.

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tom nr 2 (44)

29--42

PL

W artykule przedstawiono analizę przypadków użycia improwizowanych urządzeń wybuchowych z udziałem pojazdów kontyngentu Polskich Sił Zbrojnych w Afganistanie w 2011 r. Na podstawie zebranych przypadków opisano metody ich użycia oraz sposoby detonacji ładunków przez przeciwnika. We wnioskach odniesiono się do wprowadzonych działań zapobiegawczych – zalecanych zmian w konstrukcji i wytycznych w zakresie eksploatacji pojazdów wojskowych.

EN

The paper presents an analysis of the cases of the use of improvised explosive devices (IED) in 2011 where vehicles of the Polish Military Contingent in Afghanistan were involved. Methods of IED use and methods of their detonation are described. Conclusions refer to the implemented preventive measures, recommended modifications in the design of military vehicles and guidelines for their use.

5

Operations review of APC "Rosomak" chassis

75%

Wysocki T. , Micewicz P. , Dziubak T.

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tom Vol. 14, No. 2

579-590

PL

Powodzenie w działaniach na współczesnym polu walki zdeterminowane jest wieloma czynnikami. Jednym z nich jest zapewnienie szybkiego, terminowego i nieoczekiwanego dla przeciwnika transportu żołnierzy. Pojazdy opancerzone, przewożące pododdziały w warunkach pola walki, powinny posiadać zdolność dojechania na stanowiska ogniowe, które mogą być położone w terenie, gdzie nie ma dróg utwardzonych a teren jest pofałdowany, górzysty lub podmokły. Zatem przystosowanie do pokonywania przeszkód terenowych przez pojazdy opancerzone powinno wynikać z ich ogólnego układu konstrukcyjnego, proporcji wymiarowych i masowych oraz z zastosowania specyficznych rozwiązań konstrukcyjnych w układach jezdnych i napędowych. Jednym z kryteriów oceny użytkowej kołowego transportera opancerzonego (KTO) są jego właściwości ruchowe, zwłaszcza w terenie. Można jednocześnie formułować różne, często odmienne, szczegółowo ukierunkowane kryteria oceny użytkowej jednego lub w celach porównawczych kilku KTO. W przypadku kryteriów o charakterze ilościowym możliwe jest otrzymanie globalnej ilościowej oceny użytkowej oddzielnie dla każdego KTO, co stwarza obiektywne warunki do porównawczej oceny ich konstrukcji. W referacie przedstawiono propozycję metodyki oceny użytkowej podwozia współczesnego kołowego transportera opancerzonego (KTO), którą oparto na rachunku wskaźników liczbowych. Wykorzystując sformułowane wskaźniki dokonano porównawczej ukierunkowanej i globalnej oceny użytkowej KTO Rosomak, którą odniesiono do innych współczesnych KTO.

EN

A success in present combat field operation is determined by many factors. One of them is assuring of rapid, term and unexpected for the enemy troops transport. Armoured vehicles, transporting troops in combat field, should have an ability to reach gun sites, which may be placed in terrain, where are no hardened ways and terrain is undulating, mountainous or boggy. Armoured vehicles adaptation to terrain obstacles covering should result from their construction system, dimensions and mass' proportions and construction solutions of driving system and running gear. One of the criterion of operational appreciation of armoured personnel carrier (APC) is its mobility property, especially in terrain. Various and specialized in many details usable assessment criteria of one or a few (in comparison) KTO might be simultaneously formulated. In case of quantitative criteria it is possible to receive a global usable quantitative assessment for each KTO individually, what makes objective conditions to comparative assessment of their construction. In the paper there is presented a proposal of method of operational appreciation of modern armoured personnel carrier (APC) chassis based on numeral indexes. Using the defined indexes there was made the operational appreciation of APC Rosomak, which was compared to other modern APC's.

6

Wpływ niesprawności układu hamulcowego na zachowanie się pojazdu specjalnego w czasie hamowania awaryjnego w ruchu krzywoliniowym

63%

Simiński P.

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tom z. 96

387--400

PL

Budowa bezpiecznych pojazdów, to jeden z głównych priorytetów Sił Zbrojnych. Artykuł dotyczy realizacji modelowania i symulacji zachowania pojazdu specjalnego - transportera opancerzonego w trakcie hamowania awaryjnego w ruchu krzywoliniowym. Za pomocą zbudowanego modelu pojazdu, w którym uwzględniono układ hamulcowy z ABS i EBS, wykonano badania symulacyjne. Badania dotyczyły określenie wpływu niesprawności układu hamulcowego na zachowanie się transportera opancerzonego w ruchu krzywoliniowym.

EN

Construction of modern land-based platforms is one of the main priorities of the Armed Forces. The article concerns the implementation of modeling and simulation of behavior special vehicles during braking. With the help of the constructed model of the braking system, which incorporates ABS and EBS systems simulation tests were performed. Studies related to the effect of the brake system failure on the behavior of the armored personnel carrier.

7

Modernizacja techniczna KTO ROSOMAK w celu zwiększenia bezpieczeństwa załogi

63%

Motrycz G.

Szybkobieżne Pojazdy Gąsienicowe

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2018

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tom nr 1 (47)

17--18

PL

W artykule przedstawiono analizę przypadków użycia granatników przeciwpancernych z udziałem pojazdów kontyngentu Polskich Sił Zbrojnych w Afganistanie. Na podstawie zebranych przypadków opisano metody ostrzału przez przeciwnika. Omówiono wyniki przeprowadzonych w kraju prac z zakresu modernizacji zabezpieczenia pojazdu przed wymienionym zagrożeniem. W podsumowaniu odniesiono się do wprowadzonych działań zapobiegawczych – zmian w konstrukcji i eksploatacji KTO ROSOMAK.

EN

The paper presents an analysis of the cases of the use of anti-tank grenade launchers where vehicles of the Polish Military Contingent in Afghanistan were involved. Methods of bombardment applied by the enemy in these cases are described. The paper discusses the results of research carried out in Poland on improving protection of vehicles against such threats. In the summary reference is made to the implemented preventive measures: modifications in the design and operation of KTO ROSOMAK aimed at improving vehicle crew safety.