ASSESSMENT OF THE ADEQUACY OF SIMULATION OF THE OPERATION OF SUSPENSIONS OF SAMPLE OF WHEELED MILITARY VEHICLES IN COMPARISON WITH THE DATA OF EXPERIMENTAL TESTS

The article presents the results of research aimed at assessing the adequacy of mathematical modeling of suspensions of wheeled military vehicles in comparison with the results of experimental tests. The adequacy of the developed simulation model of the movement of samples of a wheeled hydraulic power plant in the MATLAB Simulink software environment is substantiated by comparing the simulation results with the data of field tests. Experimental studies were carried out using UAZ-3151 and LTV02 “Mamay” cars, as well as modern means of measuring vibrational loads. The results showed the correspondence of theoretical and experimental data, which confirms the adequacy of the modeling and the possibility of its use to optimize the design of suspensions. The introduction of a long-travel independent elastic suspension on the LTV02 “Mamay” buggy with a 1.65-fold increase in the amplitude of the moves showed an almost proportional difference in the threshold speeds of movement in relation to the appearance of the suspension breakdown effect. It is proposed to evaluate the effectiveness of suspensions of automatic transmission systems during road tests of the smoothness of the course of experimental samples of new automatic transmission systems at the stage of preparation for their mass production and modernized automatic transmission systems in the event of a significant change in the design of their suspension and other structural elements that affect the smoothness of the operation to use the test areas described in this work . The importance of developing a national regulatory framework for assessing the compliance of the tactical and technical characteristics of the JSC, in particular, in the context of smoothness of movement and off-road mobility, is emphasized.