On-Line Running Tests for Validating the Numerical Simulations of the Vertical Dynamic Behavior in Railway Vehicles

Madalina Dumitriu

doi:10.4028/www.scientific.net/AMM.657.609

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 657On-Line Running Tests for Validating the Numerical...

On-Line Running Tests for Validating the Numerical Simulations of the Vertical Dynamic Behavior in Railway Vehicles

Abstract:

The paper focuses on the validation of the numerical simulations regarding the behavior of a railway vehicle while running on a track with irregularities. These simulations are developed from a complex vehicle track system that allows the evaluation of the dynamic behavior on a vertical direction of the railway vehicles in terms of running quality, vibration comfort and the fatigue stress on the track. The validation process consists in the comparison of the acceleration spectra derived from numerical simulations and those from the data recorded during the vehicle circulation on the running line. In this context, the frequency spectra of the measured acceleration are shown that they can be classified into two categories one is of the spectra similar in shape with the ones considered in the numerical simulations, used as a basis for the validation process and the other one includes the acceleration spectra that are sensibly different than the ones derived from the numerical simulations.

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Periodical:

Applied Mechanics and Materials (Volume 657)

Pages:

609-613

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.657.609

Citation:

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Online since:

October 2014

Authors:

Madalina Dumitriu*

Keywords:

Dynamic Behavior, Numerical Simulation, Railway Vehicle, Running Test, Validation

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* - Corresponding Author

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