FE Modelling as a Design Tool for Mitigation Measures for Railway Vibrations

Norén-Cosgriff, Karin; Dahl, Birgitte Misund; Park, Joonsang; Kaynia, Amir M.

doi:10.1007/978-3-030-70289-2_45

Cited by 1 publication

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“…The original spectra for the isolated and un-isolated track should be reported for to check if the established reduction is for the main amplitudes or for smaller and more random amplitudes (see Figures 4,[5][6][7][8][9][10].…”

Section: Interpretation and Recommendations For The Measurement Of Mi...mentioning

confidence: 99%

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Mitigation of Railway-Induced Ground Vibration by Soft Support Elements and a Higher Bending Stiffness of the Track

Auersch

2024

Applied Sciences

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The mitigation of train-induced ground vibrations by track solutions is investigated by calculations and measurements. The calculation by a wavenumber domain method includes the correct vehicle–track interaction and the correct track–soil interaction. Some theoretical results for elastic elements and an increased bending stiffness of the track are presented where the force transfer of the track and the vehicle–track interaction are calculated for the high-frequency dynamic mitigation, and the force distribution along the track is calculated for the low-frequency mitigation which is due to the smoother impulses from the passing static loads. Measurement results for the ground vibration near isolated and un-isolated tracks are given for several under-sleeper pads, for under-ballast mats, and for several under-ballast plates and ballast troughs. The elastic elements yield a resonance frequency of the vehicle–track–soil system and a high-frequency reduction of the dynamic axle loads which depends mainly on the softness of the pads or mats and which can be improved by a higher sleeper mass. In addition, all troughs and most of the soft elements show a low-frequency reduction which is attributed to the scattered impulses of the static axle loads. Besides this main contribution of the article, the problem of a soft reference section on a different soil is discussed and recommendations for better ground vibration measurements of mitigation effects are given.

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Section: Interpretation and Recommendations For The Measurement Of Mi...mentioning

confidence: 99%

“…An overview of the numerical methods can be found in [9]. Many contributions to track solutions have been published in the series of International Workshops on Railway Noise and Vibration (IWRN), for example [10].…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Railway-Induced Ground Vibration by Soft Support Elements and a Higher Bending Stiffness of the Track

Auersch

2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

FE Modelling as a Design Tool for Mitigation Measures for Railway Vibrations

Cited by 1 publication

References 3 publications

Mitigation of Railway-Induced Ground Vibration by Soft Support Elements and a Higher Bending Stiffness of the Track

Mitigation of Railway-Induced Ground Vibration by Soft Support Elements and a Higher Bending Stiffness of the Track

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