Specification of estimation of a passenger car ride smoothness under various exploitation conditions

The stability and smoothness of rolling stock running could be defined accurately by universal Sperling's comfort index. divergences variation index a passenger car under specific operating conditions gear are examining in this paper. Numerical simulations with independently rotating wheels various have been performing. Gained results showed that the particularly significant due to component oscillations horizontal plane (lateral direction). A field experiment solid (traditional) wheelset flat surface proved hypothesis. obtained confirmed assumption. Therefore, study regularities lateral is logical direction further research.