ANALYSIS OF MODELS OF THE DYNAMICS AND STRESS-DEFORMED STATE OF THE ELEMENTS OF THE TRANSITIONAL SUPPORTING STRUCTURE OF THE TURRET SHEET OF LIGHT ARMORED VEHICLES

The work describes a parametric model of the dynamics and stress-strain state of the elements of the transitional supporting structure of the sub-turret sheet of light armored vehicles. The mass-inertial characteristics of the combat module, the thickness and overall dimensions of the underturret transition sheet, as well as the rate of fire and the caliber of the combat module’s weapons are used as varied parameters. The effect of the thickness of the transition unertower sheet on the natural frequencies and forms of vibrations was studied. The response of the structure to the action of impulse reactive recoil forces when firing from a combat module is also determined. Based on the calculations made for the test design, the regularities of the influence of varied parameters on the dynamics and stress-strain state of the elements of the transitional power structure of the underturret sheet of light armored vehicles were established. The developed model makes it possible to form a specialized database. This database accumulates information about the dynamic, stiffness and strength properties of the system «combat module - transitional structure of the underturret sheet of the armored hull of a lightly armored vehicle». This makes it possible to proceed to the analysis of the properties of real structures, as well as to the formation of recommendations regarding the substantiation of the rational parameters of the elements of lightly armored vehicles that are being designed or modernized. Keywords: lightly armored vehicle; combat module; undertower sheet; dynamics; stress-strain state; varied parameters