MODELING AND STRENGTH ANALYSIS OF PIVOT BOLT HEALTH FROM THE SUSPENTION OF THE FOUR-AXLE FREIGH WAGON TYPE Tamns

Vasko Nikolov

Scientific paper ID 1835 : 2019/3

MODELING AND STRENGTH ANALYSIS OF PIVOT BOLT HEALTH FROM THE SUSPENTION OF THE FOUR-AXLE FREIGH WAGON TYPE Tamns

Vasko Nikolov

An in-depth analysis of the loads acting on the pivot bolt from the suspension of the four-axle freight wagon for bulk cargo transport is made in the report. Influencing the strength characteristics of this particularly important safety feature of the construction of this type of wagons operated by private carriers in Bulgaria, as well as the reasons for breaking these elements during operation are done. A deion of the spring suspension of this type of wagon is presented, and the main elements that make up this are described. The type of spring suspension and the forces acting on it are characterized. A diagram of the loading of the pivot bolt during operation is shown and the forces which act as well as the place of application in the sheet portfolio are described. These ments, which are important to the safety of the movement, are listed. Modeling, strength and deformation analysis of the structure using the finite element method was performed. The values of the individual parameters of the analysis and the places where the extreme ones are obtained are given. The results are compared with the failures obtained during operation. Recommendations are given to remove and reduce denials of a similar nature.

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вагони ресорно окачване ходова част якостен анализ безопасност на движението метод на крайните елементи.wagons suspension chassis strength analysis traffic safety finite element method.Vasko Nikolov

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