Dynamic Loading Research of the Gondola car Supporting Structure with an Elastic-Viscous Filler in a Center Sill

Purpose. The work aims to investigate dynamic loading of the supporting structure a gondola car with an elastic-viscous filler in center sill by means mathematical modeling. Methodology. Mathematical modeling closed filled properties has been carried out. case highest load on operation is taken into account – shunting collision, taking action 3.5 MN rear stop automatic coupler. To determine car, model formed prof. G. I. Bohomaz was used. However, within framework this study, refined adapting it determination car. It also takes friction forces arising between plates body and pivots bogies, as well energy-absorbing material. solution out MathCad software package. In case, differential equations motion were reduced Cauchy normal form, then integrated using Runge-Kutta method. Initial displacements speeds are equal zero. calculation example universal 12-757 built Kriukivskyi Carriage Works PJSC (Kremenchug) standard bogies 18-100. Findings. Accelerations obtained components acting filler. found that stiffness 82 kN/m, viscous resistance coefficient -120 kN∙s/m, maximum accelerations about 37 m/s2 (0.37g). Originality. A proposed for determining makes possible obtain improvement measures during collision. Practical value. results research will help reduce damage structures cars operation, cost their maintenance, create developments design innovative rolling stock, increase efficiency its operation.