| Abstrakt: |
Currently, there are several criteria for traffic safety, which used to establish the possibility of derailing the rolling stock from the track. The methods of their determination, given in the regulatory documents and in the scientific literature, differ in their approaches, the choice of basic parameters and have both certain advantages and significant disadvantages in determining the conditions for the safe movement of rail vehicles. This makes it much more difficult to establish the critical stability parameters for rolling stock. In this regard, it was proposed to use the time during which the static load on the wheel is less than the load, at which the process of rolling the wheel onto the railhead begins, as a criterion of derailing the freight wagon. Provided that this time will be more time, during which the wheel flange can rise onto the railhead, occur the rolling stock derails from the track. This criterion allows, in addition to the parameters of the bogies of freight wagons, to take into account the deviations of the technical condition of the rail track from the maintenance standards. It could be used not only in the study of railway accidents caused by the derailment of freight wagons in trains, but also in the assessment of their main dynamic indicators. [ABSTRACT FROM AUTHOR] |
