<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The paper focuses on the experimental verification of the results derived from numerical simulations, based on a model of the bogie-track system, where the vertical track irregularities are introduced in the form of a pseudorandom function. This function comes from an original method of synthesizing the vertical track irregularities, depending on the geometric quality of the track and on the velocity. To verify the method, the root mean square (RMS) of the simulated accelerations in the axles and the bogie frame against each axle is compared to the experimental accelerations within the frequency range of wavelengths of the track vertical irregularities from 3 to 120 m. The results have shown a good correlation between the simulated RMS accelerations for a low quality track and the measured RMS accelerations.</p></abstract>

The paper focuses on the experimental verification of the results derived from numerical simulations, based on a model of the bogie-track system, where the vertical track irregularities are introduced in the form of a pseudorandom function. This function comes from an original method of synthesizing the vertical track irregularities, depending on the geometric quality of the track and on the velocity. To verify the method, the root mean square (RMS) of the simulated accelerations in the axles and the bogie frame against each axle is compared to the experimental accelerations within the frequency range of wavelengths of the track vertical irregularities from 3 to 120 m. The results have shown a good correlation between the simulated RMS accelerations for a low quality track and the measured RMS accelerations.

Experimental Verification of Method to Synthesize the Track Vertical Irregularities

Technical University of Civil Engineering

Romanian Journal of Transport Infrastructure

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The paper focuses on the experimental verification of the results derived from numerical simulations, based on a model of the bogie-track system, where the...

Experimental Verification of Method to Synthesize the Track Vertical Irregularities

Publié en ligne: 02 mars 2019

Pages: 40 - 60

DOI: https://doi.org/10.2478/rjti-2018-0011

Mots clés
track vertical irregularities, experimental analysis, bogie vibration, root mean square of acceleration

© 2018 Mădălina Dumitriu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Experimental Verification of Method to Synthesize the Track Vertical Irregularities

Publié en ligne: 02 mars 2019

Pages: 40 - 60

DOI: https://doi.org/10.2478/rjti-2018-0011

Mots cléstrack vertical irregularities, experimental analysis, bogie vibration, root mean square of acceleration

© 2018 Mădălina Dumitriu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
track vertical irregularities, experimental analysis, bogie vibration, root mean square of acceleration