Dynamics of the Rolling Stock and the Choice of Parameters of Vibration Dampers

Modern railway rolling stock should meet requirements regarding comfort (maximum travel speed with minimum vibrations of wagons, noiselessness movement, etc.). To eliminate the influence dynamic loads, is equipped vibration dampers. The objective work to select parameters dampers stock, depending on its characteristics, ensure due indicators and safety transportation passengers goods by rail. achieve this objective, applied methods mathematical modelling were based numerical programming operation systems. are evaluated according results studies dynamics (in particular, protection rates). Assessment state implies application physical modelling, which include development a model, calculation algorithm, computer programming. study model makes it possible carry out multifactorial experiment using large number input (factors) characteristics that optimal for conditions under consideration. solve problems, harmonic perturbation most widespread, was specified in form sinusoid period corresponding rail length. A quantitative assessment process (frequency, amplitude) identify main processes occurring system consideration various types external load. introduced assumptions related rigidity, mobility geometric immutability allow determining obtaining considering as flat ones. equations solved MathCad Prime 4.0 package Runge–Kutta method automatic step selection. subsequent properties carried changing resistance parameter first stage spring suspension, while recording values amplitude period. analysis has shown body bogies any changes damper remains unchanged, rational axle box have been revealed indicators. Hydraulic used help reduce wear damageability running gears, improve ride traffic safety, well repair maintenance costs.