Numerical research of the high-speed military vehicle track

Hryciów, Z.; Rybak, Piotr

doi:10.1063/1.5092032

Cited by 5 publications

(6 citation statements)

References 9 publications

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“…For the time interval of 𝑡𝑡 ≈ 5 ÷ 22 𝑠𝑠, the power values 𝑃𝑃 2𝑢𝑢 are significantly lower than 𝑃𝑃 2 because of the increased power loss due to auxiliary clutch slip. This confirms the theory behind the equation (1), where it is obvious that the greater the power loss 𝑃𝑃 𝑢𝑢 in the powertrain, less power is delivered to the outer track. When the auxiliary clutch activation pressure is increased to the value of 4 bar at 𝑡𝑡 ≈ 22 ÷ 35 𝑠𝑠, the power loss on the auxiliary clutch decreases, thus the power delivered on the outer track increases, tending to reach the value of the power delivered while the auxiliary clutch is fully engaged.…”

Section: Figure 10 Powertrain Output Torque-slip Vs No Slipsupporting

confidence: 83%

“…High-speed tracked vehicles have a great advantage over wheeled vehicles when it comes to overcoming hard condition terrains. In order to maintain high mobility in low adhesion and high moving resistance conditions, these vehicles have robust powertrain components and complex turning mechanisms, which can withstand high torque, while producing a respectful velocity at the same time [1]. This means that the power source, IC engine, has to produce enough power to satisfy all of these requests.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of powertrain’s workload during the turning process of a high-speed tracked vehicle

Ponorac¹,

Blagojević

Grkić³

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In order to analyze the efficiency of a high-speed tracked vehicle powertrain, it is necessary to understand the powertrain workloads in specific working regimes. Experimental tests are conducted on a specific high-speed tracked vehicle, in various terrain conditions, in order to obtain accurate workload data and isolate the maximum workload regimes. From the power balance point of view, the most demanding working regime is the vehicle turning process, so corresponding test results are analyzed with special attention. The obtained results indicate that the slip of the turning mechanism friction elements greatly influences the character of the power balance change.

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Section: Figure 10 Powertrain Output Torque-slip Vs No Slipsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Analysis of powertrain’s workload during the turning process of a high-speed tracked vehicle

Ponorac¹,

Blagojević

Grkić³

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…These can be discrete models with one, two and a finite number of degrees of freedom or models developed and analysed by FEM [29]. Partial models can be used to analyse complex dynamic objects such as HSTVs, as demonstrated in the paper [30].…”

Section: Numerical Modelmentioning

confidence: 99%

Assessment of the Impact of Wear and Tear of Rubber Elements in Tracked Mechanism on the Dynamic Loads of High-Speed Tracked Vehicles

Rybak

Hryciów

Michałowski

et al. 2023

Acta Mechanica Et Automatica

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The operation of high-speed tracked vehicles takes place in difficult terrain conditions. Hence, to obtain a high operational reliability, the design or modernisation process must be precise and should consider even the slightest details. The article presents issues related to the problem of formulating vehicle models using partial models of flexible elements used in tracked mechanisms. Changes occurring in the shape and properties of elements such as track pads and roadwheel bandages as a consequence of operating conditions are presented. These changes are reflected in the presented elastic–damping characteristics of components of the crawler mechanism. Numerical studies have shown that deterioration of chassis suspension components after a significant mileage may increase dynamic loads (forces) acting on the running gear. Increased forces in the running gear naturally result in increased stresses in the road surface on which the vehicle is travelling, which can pose a danger (or excessive wear and tear) to road infrastructure components such as culverts, bridges and viaducts. In the literature, model tests of objects are carried out on models that represent new vehicles, and the characteristics of the adopted elements correspond to elements not affected by the process and operating conditions. Its influence should not be ignored in the design, testing and running of a special vehicle. The tracked mechanism, as running gear, is designed for special high-speed vehicles for off-road and off-road driving. Its design ensures high off-road traversability. The dynamic loads originating from off-road driving are superimposed on those generated by the engine, drive train and interaction of the tracks with the roadwheels, sprocket, idler and supporting tracks return rollers.

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“…w kierunku modernizacji danego obiektu lub w kierunku poprawy procesu jego użytkowania i obsługi. W podzbiorze pierwszym mieszczą się prace [5,6], natomiast w obszarze drugim opracowania [8,9,10,11].…”

Section: Wprowadzenieunclassified

“…na obciążenia dynamiczne wynikające z jazd terenowych, na działanie zmiennych momentów oporów ruchu oraz obciążeń cieplnych wynikających z zabudowy w hermetycznym kadłubie. Podczas projektowania czołgów [3,4,5,7] przyjmuje się okres ich eksploatacji na 25-30 lat. Przewiduje się wówczas pewien zapas modernizacyjny.…”

Section: Rys 1 Charakterystyczne Terenowe Warunki Ruchu Czołgówunclassified

Analysis of modernization influence on main battle tank properties

Rybak

Wiśniewski

2020

Journal of KONBiN

Self Cite

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AbstractFunctional quality of caterpillar fighting vehicles can be assessed upon its original project design and technical characteristics. However, lapse of time, technical and technological progress, battlefield dynamics, new and evolving threats can negatively verify both offensive and defensive effectiveness of such vehicles. As a result, appears need of modernization addressing new threats and requirements. Main goal of modernization is to achieve advantage over potential enemy fighting vehicles. This work is an attempt to analyse possible development patches and despite technological and materials progress inseparable increase of the vehicle’s combat weight on operating capabilities of such vehicles.

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Numerical research of the high-speed military vehicle track

Cited by 5 publications

References 9 publications

Analysis of powertrain’s workload during the turning process of a high-speed tracked vehicle

Analysis of powertrain’s workload during the turning process of a high-speed tracked vehicle

Assessment of the Impact of Wear and Tear of Rubber Elements in Tracked Mechanism on the Dynamic Loads of High-Speed Tracked Vehicles

Analysis of modernization influence on main battle tank properties

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