READ ME File For 'Data supporting the article: Effects of rotation on the rolling noise radiated by wheelsets in high-speed railways' Dataset DOI: https://doi.org/10.5258/SOTON/D2867 Date that the file was created: November, 2023 ------------------- GENERAL INFORMATION ------------------- ReadMe Author: Christopher Knuth, University of Southampton -------------------------- SHARING/ACCESS INFORMATION -------------------------- Licenses/restrictions placed on the data, or limitations of reuse: CC BY Recommended citation for the data: This dataset supports the publication: AUTHORS: Christopher Knuth, Giacomo Squicciarini, David Thompson, Luis Baeza TITLE: Effects of rotation on the rolling noise radiated by wheelsets in high-speed railways JOURNAL: Journal of Sound and Vibration PAPER DOI: https://doi.org/10.1016/j.jsv.2023.118180 -------------------- DATA & FILE OVERVIEW -------------------- This dataset contains the numerical data used to produce the Figures 2-12 of the publication, some of which are divided into sub-figures from (a)-(c). -It is separated into 15 Microsoft Excel files (.xls), one for each sub-figure. -The x- and y- data are stored as a matrix in the sheet, where the first column always corresponds to the x-data and the remaining to the y-data of the individual lines shown in the figure. -A description is available in each sheet, that refers the data to the corresponding line in the figure. -In Figure_5.xls three sheets are used because of the length of the data, where sheet 1 corresponds to frequencies from 10-3340 Hz, sheet 2 to 3340.1-6670 Hz, and sheet 3 to 6670.1-10000 Hz. In the ZIP file the data is organised as follows: - Figure_2a.xls - Figure_2b.xls - Figure_2c.xls - Figure_3.xls - Figure_4a.xls - Figure_4b.xls - Figure_5.xls - Figure_6.xls - Figure_7a.xls - Figure_7b.xls - Figure_8a.xls - Figure_8b.xls - Figure_9xls - Figure_10.xls - Figure_11a.xls - Figure_11b.xls - Figure_12.xls -------------------------- METHODOLOGICAL INFORMATION -------------------------- Description of methods used for collection/generation of data: The data was generated from numerical rolling noise simulations in MATLAB Methods for processing the data: The simulatiions were carried out by comining the rotating wheelset model developed in this paper with the Track Wheel Interaction Noise Software (TWINS). -------------------------- DATA-SPECIFIC INFORMATION -------------------------- 1) Figure_2a.xls: Frequency separation of radial railway wheel waves over speed due to inertial gyroscopic/centrifugal effecta row 1 - x-data: Train speed, km/h row 2-3 - y-data: Maximum frequency shift due to gyroscopic effects +/-Omega, Hz row 4-13 - y-data: Frequency shift of the rotating radial waves 1-10, Hz 2) Figure_2b.xls: Frequency separation of circumferential railway wheel waves over speed due to inertial gyroscopic/centrifugal effecta row 1 - x-data: Train speed, km/h row 2-3 - y-data: Maximum frequency shift due to gyroscopic effects +/-Omega, Hz row 3-13 - y-data: Frequency shift of the rotating circumferential waves 1-10, Hz 3) Figure_2c.xls: Frequency separation of axial railway wheel waves over speed due to inertial gyroscopic/centrifugal effects row 1 - x-data: Train speed, km/h row 2-3 - y-data: Maximum frequency shift due to gyroscopic effects +/-Omega row 4-33 - y-data: Frequency shift of the rotating axial waves 1-30, Hz 4) Figure_3.xls: Frequency separation of radial/circumferential/axial railway wheel waves over speed due to stress stiffening and spin softening row 1 - x-data: Train speed, km/h row 2-3 - y-data: Maximum frequency shift due to gyroscopic effects +/-Omega, Hz row 4-28 - y-data: Frequency shift of the rotating radial/circumferential/axial waves 1-25, Hz 5) Figure_4a.xls: Frequency separation of railway wheelset waves over speed for n=0 row 1 - x-data: Train speed, km/h row 2-3 - y-data: Maximum frequency shift due to gyroscopic effects +/-Omega, Hz row 4-23 - y-data: Frequency separation of the rotating waves 1-20, Hz 6) Figure_4b.xls: Frequency separation of railway wheelset waves over speed for n=+/-1 row 1 - x-data: Train speed, km/h row 2-3 - y-data: Maximum frequency shift due to gyroscopic effects +/-Omega, Hz row 3-23 - y-data: Frequency separation of the rotating waves 1-20, Hz 7) Figure_5.xls: Vertical contact mobilities of the rail, wheelset and track used in interaction row 1 - x-data: Frequency, Hz row 2 - y-data: Magnitude of mobility of the rail, m/Ns row 3 - y-data: Magnitude of mobility of the wheelset, m/Ns row 4 - y-data: Magnitude of mobility of the contact, m/Ns 8) Figure_6.xls: Comparison of Sound Power Level (SWL) of the rotating (Eulerian) and non-rotating wheel for different speeds row 1 - x-data: Frequency, Hz row 2 - y-data: SWL of the wheel at a speed of 350 km/h rotating (Eulerian), dB re 1 pW row 3 - y-data: SWL of the wheel at a speed of 350 km/h non-rotating, dB re 1 pW row 4 - y-data: SWL of the wheel at a speed of 160 km/h rotating (Eulerian), dB re 1 pW row 5 - y-data: SWL of the wheel at a speed of 160 km/h non-rotating, dB re 1 pW row 6 - y-data: SWL of the wheel at a speed of 80 km/h rotating (Eulerian), dB re 1 pW row 7 - y-data: SWL of the wheel at a speed of 80 km/h non-rotating, dB re 1 pW 9) Figure_7a.xls: Difference in SWL of the wheel using the rotating and non-rotating models for different speeds row 1 - x-data: Frequency, Hz row 2 - y-data: Difference SWL of the wheel (rotating (Eulerian)/non-rotating) at a speed of 500 km/h, dB re 1 pW row 3 - y-data: Difference SWL of the wheel (rotating (Eulerian)/non-rotating) at a speed of 350 km/h, dB re 1 pW row 4 - y-data: Difference SWL of the wheel (rotating (Eulerian)/non-rotating) at a speed of 160 km/h, dB re 1 pW row 5 - y-data: Difference SWL of the wheel (rotating (Eulerian)/non-rotating) at a speed of 80 km/h, dB re 1 pW 10) Figure_7b.xls: Difference in SWL of the wheel using the rotating and moving load models for different speeds row 1 - x-data: Frequency, Hz row 2 - y-data: Difference SWL of the wheel (rotating (Eulerian)/moving load) at a speed of 500 km/h, dB re 1 pW row 3 - y-data: Difference SWL of the wheel (rotating (Eulerian)/moving load) at a speed of 350 km/h, dB re 1 pW row 4 - y-data: Difference SWL of the wheel (rotating (Eulerian)/moving load) at a speed of 160 km/h, dB re 1 pW row 5 - y-data: Difference SWL of the wheel (rotating (Eulerian)/moving load) at a speed of 80 km/h, dB re 1 pW 11) Figure_8a.xls: Difference in overall A-weighted SWL for different models to account for the rotation (straight web wheel) row 1 - x-data: Train speed, km/h row 2 - y-data: Difference overall A-weighted SWL of the wheel (rotating (Eulerian)/Eulerian with stress-stiffening), dB row 3 - y-data: Difference overall A-weighted SWL of the wheel (rotating (Eulerian)/moving load), dB row 4 - y-data: Difference overall A-weighted SWL of the wheel (rotating (Eulerian)/non-rotating), dB 12) Figure_8b.xls: Difference in overall A-weighted SWL for different models to account for the rotation curved web wheel) row 1 - x-data: Train speed, km/h row 2 - y-data: Difference overall A-weighted SWL of the wheel (rotating (Eulerian)/Eulerian with stress-stiffening), dB row 3 - y-data: Difference overall A-weighted SWL of the wheel (rotating (Eulerian)/moving load), dB row 4 - y-data: Difference overall A-weighted SWL of the wheel (rotating (Eulerian)/non-rotating), dB 13) Figure_9.xls: Comparison of SWL of the full wheelset with the constrained wheel model for different speeds row 1 - x-data: Frequency, Hz row 2 - y-data: SWL of the wheelset at a speed of 350 km/h rotating (Eulerian), dB re 1 pW row 3 - y-data: SWL of the wheel at a speed of 350 km/h rotating (Eulerian), dB re 1 pW row 4 - y-data: SWL of the wheelset at a speed of 160 km/h rotating (Eulerian), dB re 1 pW row 5 - y-data: SWL of the wheel at a speed of 160 km/h rotating (Eulerian), dB re 1 pW row 6 - y-data: SWL of the wheelset at a speed of 80 km/h rotating (Eulerian), dB re 1 pW row 7 - y-data: SWL of the wheel at a speed of 80 km/h rotating (Eulerian), dB re 1 pW 14) Figure_10.xls: Difference in overall A-weighted SWL of the full wheelset with the constrained wheel model row 1 - x-data: Frequency, Hz row 2 - y-data: Difference overall A-weighted SWL, dB 15) Figure_11a.xls: Comparison of the wheel velocity in radial and axial direction in the inertial and non-inertial frame of reference at 80 km/h row 1 - x-data: Frequency, Hz row 2 - y-data: Velocity of the wheel (radial) in the non-inertial frame, dB re 1 nm/s row 3 - y-data: Velocity of the wheel (axial) in the non-inertial frame, dB re 1 nm/s row 4 - y-data: Velocity of the wheel (radial) in the inertial frame, dB re 1 nm/s row 5 - y-data: Velocity of the wheel (axial) in the inertial frame, dB re 1 nm/s 16) Figure_11b.xls: Comparison of the wheel velocity in radial and axial direction in the inertial and non-inertial frame of reference at 80 km/h row 1 - x-data: Frequency, Hz row 2 - y-data: Velocity of the wheel (radial) in the non-inertial frame, dB re 1 nm/s row 3 - y-data: Velocity of the wheel (axial) in the non-inertial frame, dB re 1 nm/s row 4 - y-data: Velocity of the wheel (radial) in the inertial frame, dB re 1 nm/s row 5 - y-data: Velocity of the wheel (axial) in the inertial frame, dB re 1 nm/s 17) Figure_12.xls: Difference in overall A-weighted SWL obtained in the inertial and non-inertial frame row 1 - x-data: Frequency, Hz row 2 - y-data: Difference overall A-weighted SWL, dB