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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Thompson, David
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2019An engineering model for the prediction of the sound radiation from a railway trackcitations
- 2019The noise radiated by ballasted and slab trackscitations
- 2017The influence of soil nonlinear properties on the track/ground vibration induced by trains running on soft groundcitations
- 2016Polymer Nanocomposite Film with Metal Rich Surface Prepared by In Situ Single-Step Formation of Palladium Nanoparticles: An Interesting Way to Combine Specific Functional Propertiescitations
- 2015The effect of temperature on railway rolling noisecitations
- 2008Experimental and theoretical analysis of railway bridge noise reduction using resilient rail fasteners in Burgdorf, Switzerlandcitations
- 2006The use of decay rates to analyse the performance of railway track in rolling noise generationcitations
- 2000Rolling noise generated by railway wheels with visco-elastic layerscitations
Places of action
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article
The use of decay rates to analyse the performance of railway track in rolling noise generation
Abstract
Through the development and testing of theoretical models for rolling noise in the past, it has been well demonstrated that the rate of decay of vibration along the rail is closely linked to the noise performance of the track, since it controls the effective radiating length of the rail. The decay rates of vibration along the rail have long been used by researchers as an intermediate, measurable parameter by which to test and improve the accuracy of prediction models. Recently, it has been suggested that the decay rates should be used as a criterion for the selection of track for noise measurements that are part of the acceptance testing of interoperable trains in Europe. In this context, a more detailed understanding of the factors that affect the measurement of decay rates and a consistent approach to the data processing have become important topics. Here, a method is suggested for the calculation of decay rates from frequency response measurements. Different effects are shown in the measured decay rates of a ballasted track with mono-bloc sleepers, a slab track and a ballasted track with bi-bloc sleepers. In the last case, a model for a periodically supported track is used to study the effects observed. It is shown that a peak in the decay rate just above the pinned–pinned frequency may be overestimated because of the measurement procedure that has been used.