A model of a rotating railway wheel for the prediction of sound radiation

The axial symmetry of a railway wheel is taken into account to expand its vibrational response around the circumferential direction using Fourier series. This allows the vibroacoustic problem of the wheel to be formulated in a two-dimensional frame, solving for the dynamic and acoustic variables analytically in the circumferential direction. By adopting an Eulerian approach, the inertial effects associated with the rotation of the wheelset are included in the model, assuming a constant angular speed of rotation. To represent a railway wheelset, the wheel is constrained at the inner edge of the hub and the contribution of the rigid body motion of the wheelset is superimposed on its response. The latter is evaluated analytically under the assumption of small rigid body displacements. The computational efficiency of the proposed methodology is found to be three orders of magnitude greater than a full three-dimensional methodology, without compromising the accuracy. The results are compared in terms of acoustic radiation with the commercial package Ansys, showing similar sound power levels in almost all the frequency range apart from some differences at low frequencies due to the use of an acoustic model based on radiation ratios.

axisymmetry, railway wheelset, rigid body motion, rolling noise, rotation, Railway wheelset, Wheel vibroacoustic model, Axisymmetry, Rigid body motion, Rolling noise, Rotation

10.1016/j.jsv.2023.117667

0022-460X

Andrés, V.T.

d1db6c44-bcc1-4676-bf17-51f323e54a2c

Martínez-Casas, J.

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Denia, F.D.

5a64479b-10d6-482b-8f25-dc5b4ef39780

Thompson, David

bca37fd3-d692-4779-b663-5916b01edae5

9 June 2023

Andrés, V.T.

d1db6c44-bcc1-4676-bf17-51f323e54a2c

Martínez-Casas, J.

0dc0fd56-e99b-4fb3-a20d-029ef73b0fd7

Denia, F.D.

5a64479b-10d6-482b-8f25-dc5b4ef39780

Thompson, David

bca37fd3-d692-4779-b663-5916b01edae5

Andrés, V.T., Martínez-Casas, J., Denia, F.D. and Thompson, David (2023) A model of a rotating railway wheel for the prediction of sound radiation. Journal of Sound and Vibration, 553, [117667]. (doi:10.1016/j.jsv.2023.117667).

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Accepted/In Press date: 7 March 2023

e-pub ahead of print date: 10 March 2023

Published date: 9 June 2023

Additional Information: Funding Information: This paper is part of the project PID2020-112886RA-I00, grant FPU18/03999 and grant EST21/00213 funded by MCIN/AEI/10.13039/501100011033 as well as by “ESF Investing in your future”. The authors also acknowledge Programa PROMETEO/2021/046 of Generalitat Valenciana, Spain. Funding Information: This paper is part of the project PID2020-112886RA-I00 , grant FPU18/03999 and grant EST21/00213 funded by MCIN/AEI/10.13039/501100011033 as well as by “ESF Investing in your future”. The authors also acknowledge Programa PROMETEO/2021/046 of Generalitat Valenciana, Spain . Publisher Copyright: © 2023 The Author(s)

Keywords: axisymmetry, railway wheelset, rigid body motion, rolling noise, rotation, Railway wheelset, Wheel vibroacoustic model, Axisymmetry, Rigid body motion, Rolling noise, Rotation