READ ME File For 'The directivity of noise radiated by a railway wheel in situ' Dataset DOI: 10.5258/SOTON/D3487 Date that the file was created: May, 2025 ------------------- GENERAL INFORMATION ------------------- ReadMe Author: David Thompson, University of Southampton, ORCID: 0000-0002-7964-5906 Date of data collection: Jan 2024 to Mar 2025 Information about geographic location of data collection: Southampton, UK and Shanghai, China Related projects: Royal Society grant 223195. -------------------------- SHARING/ACCESS INFORMATION -------------------------- Licenses/restrictions placed on the data, or limitations of reuse: CC BY NC 4.0 This dataset supports the publication: AUTHORS: Xianying Zhang, Yuan He, David J. Thompson, Zhiwei Hu TITLE: The directivity of noise radiated by a railway wheel in situ JOURNAL: Proceedings of the Institution of Mechanical Engineering, Part F: Journal of Rail and Rapid Transit PAPER DOI IF KNOWN: Links to other publicly accessible locations of the data: n/a Links/relationships to ancillary or related data sets: n/a -------------------- DATA & FILE OVERVIEW -------------------- This dataset contains: Data relating to figures and tables in the paper, in Excel format The figures and tables are as follows: Figure 2 Comparison of the directivity for the wheel in free space between the prediction and the measured data from [6]. (a) 3-nodal-diameter and 1-nodal-circle axial mode; (b) 5-nodal-diameter and 1-nodal-circle axial mode; (c) 3-nodal-diameter radial mode; (d) 5-nodal-diameter radial mode. Figure 4 Comparison of the sound power for a unit force under different boundary conditions in one-third octave bands. (a) Vertical excitation; (b) Lateral excitation. Figure 5 Comparison of the sound pressure at standard measurement point under different boundary conditions in one-third octave bands. (a) Vertical unit force; (b) Lateral unit force. Figure 6 Comparison of the directivity under different conditions in terms of sound pressure level for a unit harmonic force averaged over frequency bands 50-5000 Hz. (a) Vertical force; (b) lateral force. Figure 7 Distribution of sound pressure level along a horizontal line, results for a unit harmonic force, averaged over frequency bands 50-4000 Hz. (a) Vertical force; (b) lateral force. Figure 8 Comparison of wheel directivity in the vertical plane with monopole, dipole and a combination in one-third octave bands for a vertical unit force. Figure 9 Distribution of sound pressure from the wheel parallel to the track in the presence of the train body for a vertical unit force. Table 1 Coefficients for the wheel directivity in the presence of the train body