READ ME File For 'The sound radiation from a periodic array of railway sleepers using a wavenumber domain method'

ReadMe Author: David Thompson, University of Southampton, ORCID: 0000-0002-7964-5906

DOI for dataset: https://doi.org/10.5258/SOTON/D2644

This dataset supports the publication:
AUTHORS:Hui Li,  Xinbiao Xiao, David Thompson, Giacomo Squicciarini
TITLE:The sound radiation from a periodic array of railway sleepers using a wavenumber domain method
JOURNAL:Journal of Sound and Vibration 
PAPER DOI: https://doi.org/10.1016/j.jsv.2023.117818


This dataset contains:

Data relating to figures

The figures are as follows:

Figure 2. The propagating wavenumber  of the rail for the vertical direction as a function of frequency.  is the acoustic wavenumber.
Figure 3. Rail point and transfer mobilities for the vertical direction as a function of frequency. 
Figure 4(a),(b) Rail transfer mobility for the vertical direction as a function of x, : real part; : imaginary part. (a) 125 Hz, (b) 630 Hz.
Figure 5(a),(b). Rail mobility in the wavenumber domain, : real part; : imaginary part. (a) 125 Hz, (b) 630 Hz.
Figure 8(a),(b). Sleeper mobilities in the wavenumber domain, : real part; : imaginary part. (a) 125 Hz, (b) 630 Hz. 
Figure 10(a),(b). Sound power and radiation efficiency of the sleepers obtained from different models. (a) Sound power for unit force on the rail, (b) radiation efficiency.
Figure 11(a),(b). Radiated sound power of the sleepers with different spacings. (b) Sound power level difference between a track with continuous sleepers and discrete sleepers.
Figure 12. Top plot: propagating wavenumbers in the sleepers compared with the acoustic wavenumber (the shaded region is the supersonic region). Bottom plot: sound power level difference between discrete and continuous sleepers. In the top plot, the solid lines are the wavenumbers shifted from  and the dashed lines are the ones shifted from  . 
Figure 13(a),(b). Top plot: propagating wavenumbers in the sleepers compared with the acoustic wavenumber (the shaded region is the supersonic region). Bottom plot: sound power level difference between discrete and continuous sleepers. In the top plot, the solid lines are the wavenumbers shifted from  and the dashed lines are the ones shifted from  .  (a) L = 0.4 m, (b) L = 1.0 m.   
Figure 14(a),(b). Mobility magnitude in the wavenumber domain. (a) 125 Hz, (b) 630 Hz.  : discrete sleepers with spacing L = 0.6 m, : continuous sleepers. 
Figure 15(a),(b). Comparison of mobility in the wavenumber domain, magnitude. (a) 810 Hz, (b) 1505 Hz. : discrete sleepers with spacing L = 0.6 m, : continuous sleepers. 
Figure 16(a),(b). (a) The coefficients an plotted against n, (b)  plotted against N.





Date of data collection: September 2019 ~ August 2022

Information about geographic location of data collection: University of Southampton, U.K.

Licence:Creative Commons Attribution 4.0


Related projects:

Date that the file was created: 25/05, 2023