Results of the experimental studies to determine the soil pressure of the Khishchnik-3930 and Khishchnik-3940 all-terrain vehicles in the conditions of the regions of the Far North of the Russian Federation and the equivalent areas

BACKGROUND: The paper discusses the impact of the Khishchnik-3930 and Khishchnik-3940 all-terrain vehicles with ultra-low pressure tyres on soil with various equipment configurations. OBJECTIVE: Study of the influence of the Belshina Arctic trans 28.1R26 Bel -44 and the Mammoth 1780×710-32 tyres in the context of evaluation of the design parameters of the propulsors of wheeled all-terrain vehicles of various categories on soil and determination of specific soil pressure of the Khishchnik-3930 and Khishchnik-3940 all-terrain vehicles with ultra-low pressure tyres. METHODS: Determination of the tyre pressure (4 and 50 kPa) is given according to the results of the impact of the machinery of various categories and configurations of the wheel equipment and the additional equipment on soil in accordance with GOST R 58656-2019 in the natural and operating conditions of the regions of the Far North and the equivalent areas of the Russian Federation are given. RESULTS: The results of theoretical and experimental studies of the impact of propulsors of the all-terrain vehicles on soil are presented. CONCLUSIONS: The methods and ways of reduction of negative impact of the all-terrain vehicles’ propulsors on soil are proposed. The practical value of the study lies in practical recommendations on the possibility of approbation of the study results in the natural and operating conditions of the regions of the Far North and the equivalent areas.