Determining features of the stressed state of a passenger car frame with an energy-absorbing material in the girder beam

The object of this study is the processes related to emergence, perception, and redistribution loads in improved structure a passenger car frame. scientific applied task tackled paper ensure strength supporting under operating loads. In regard, it proposed improve frame by constructing girder beam from two rectangular pipes filled with material energy-absorbing properties. regularities load have been determined taking into consideration solutions. It was found that maximum equivalent stresses frame, its improvement account, are 11.2 % lower than without filler, 11.7 typical design. results reported here explained fact use contributes an increase moment resistance and, accordingly, reduces stresses. addition, has natural oscillation frequencies calculation weld zone interaction pivot beams given. A feature obtained achieved not strengthening components but reducing load. scope practical application concerns railroad transportation, as well other sectors mechanical engineering. conditions for these findings introduction closed profiles vehicles at stage their design modernization. This could help reduce cost maintaining cars efficiency operation. research might prove useful designing modern structures