1. METHOD TO SYNTHESIZE THE TRACK VERTICAL IRREGULARITIES.
- Author
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DUMITRIU, Mădălina
- Subjects
- *
RAILROADS , *POWER spectra , *SPECTRAL energy distribution , *WAVELENGTHS , *VIBRATION (Mechanics) , *COMPUTER simulation - Abstract
The paper focuses on a method to synthesize the track vertical irregularities, with the possibility of application in the simulation of the dynamics in the railway vehicles. The basic elements of the method are the power spectral density of the track irregularities and the quantities describing the track geometry quality, as they have been adopted in compliance with the ORE B 176 report and UIC 518 leaflet. A major contribution of this method is the extension of the interval specific to the wavelength of the track vertical irregularities, so that this interval be representative for the frequency range of the vertical vibrations in the railway vehicle. The results of the numerical simulations of the dynamic behavior in a vehicle while running on a tangent track with vertical irregularities being synthesized as above demonstrate its efficiency. [ABSTRACT FROM AUTHOR]
- Published
- 2014