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  5. Experimental research of parameters of bearing patency of samples of military wheeled vehicles

Experimental research of parameters of bearing patency of samples of military wheeled vehicles

M. Hrubel, Yu. Ftemov, V. Khoma
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Description: Here was done an analysis of standards for the assessment of patency of military vehicles samples. It has been found that the use of outdated standards is inappropriate given the fundamental difference from NATO's methodologies and standards in this area. Also was comparative analysis of well-known studies and the methods of assessing the patency of vehicles with allwheel drive. We found that NATO countries use a technique for the experimental assessment of the possibility of the respective surfaces which based on the using of the CI (Cone Index) ,and unlike the common "Soviet method" for Ukraine, it takes into account soil moisture and physical mechanical characteristics of respective surfaces . The CI (Cone index) method allows for us with help of standardized software to determine more rational routs and approximate speeds (time loss) for appropriate military machine movements. We have proposed a method for assessing the patency of wheeled military vehicles, and it takes into account the achievement of post-Soviet and the NATO bloc scientific schools. The measured areas was selected in according to the classification of off-road surfaces, which are defined in the professional literature, with varying numerical values of characteristic parameters, the measured areas corresponding to the main off-road type. Experimental was done for obtain the experimental speeds of movement of wheeled military vehicles with all-wheel drive samples to verify the adequacy of the model of movement of wheel military vehicles samples developed in the MATLAB Simulink software environment. As a results of the experimental, we received the maximum possible velocity of movement at typical reference surfaces for some military vehicles with all-wheel drive (KAMAZ-4310 and KrAZ-5233), which used in Ukraine.

Keywords: off-road, experimental patency assessment, bearing surface, bearing ability of ground, samples of military vehicles


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 Hrubel, M.H., Ftemov, Yu.O. and Khoma, V.V. (2019), “Eksperymentalni doslidzhennia parametriv opornoi prokhidnosti zrazkiv kolisnoi viiskovoi avtomobilnoi tekhniky” [Experimental research of parameters of bearing patency of samples of military wheeled vehicles], Systems of Arms and Military Equipment, No. 4(60), pp. 7-15. https://doi.org/10.30748/soivt.2019.60.01.