READ ME File For 'Dataset for the influence of variation in track level and support system stiffness over longer lengths of track for track performance and vehicle track interaction.'

Dataset DOI: https://doi.org/10.5258/SOTON/D1095

ReadMe Author: David Milne, University of Southampton [https://orcid.org/0000-0001-6702-3918]

This dataset supports the publication:
AUTHORS:David Milne, John Harkness, Louis Le Pen & William Powrie
TITLE:The influence of variation in track level and support system stiffness over longer lengths of track for track performance and vehicle track interaction
JOURNAL:Vehicle System Dynamics

PAPER DOI IF KNOWN: https://doi.org/10.1080/00423114.2019.1677920


This dataset contains:
The attached NSVD.xls file contains the processed research data to accompany the following article: The influence of variation in track level and support system stiffness over longer lengths of track for track performance and vehicle track interaction.

The results are tabbed by measurement, intial simulation (sensitivity to modulus, track level and voiding), and enhanced simulation (speed and weight). 

The raw vibration data and simulation time histories used to produce these data are to large to deposit here, but can be made available on request.

The data was used to produce the figures as follows:

Figure 7. Average measured sleeper downward deflections obtained from sleeper vibration measurements along 200 m of track for (a) Javelin, (b) Eurostar and (c) Valero train types.

Figure 8. Average measured support system modulus obtained from sleeper vibration measurementsalong 200 m of track for (a) Javelin, (b) Eurostar and (c) Valero train types.

Figure 9. Histograms of (a.) sleeper deflection and (b) support system modulus for the Javelin data from Figure 7 and Figure 8.

Figure 11. Comparison of loaded and unloaded sleeper levels.

Figure 12. (a) Simulated downward sleeper deflections, (b) re-analysed support system modulus using measured sleeper heights on a track with a uniform support system modulus of 30 MN/m2.

Figure 13. Measured and Simulated downward sleeper deflections for 350 sleepers, including progressively (a) variable support conditions, (b) sleeper heights and (c) voiding.

Figure 14. Measured and Simulated inferred support sleeper moduli for 350 sleepers, including progressively (a) variable support conditions, (b) sleeper heights and (c) voiding.

Figure 17. (a) Simulated downward sleeper deflections and (b) re-analysed support system modulus for different train speeds and increased carbody mass; irregular and voided track with variable support stiffness.

Date of data collection: 2018-2019

Information about geographic location of data collection: Field data collected on the HS1 railway line in Kent UK. Simulation data Southampton UK.

Licence: CC-BY

Related projects:
N/A

Date that the file was created: October 2019