Abstract
Floating slab tracks (FST) are mass-spring systems that are used to reduce groundborne vibration generated by trains. The effectiveness of FSTs can be estimated using the single degree-of-freedom (SDOF) model. More detailed study of the modes and shapes of the FST are sometimes performed using Finite Element Method (FEM) models. This paper also explores the suitability of a natural rubber (NR) based elastomeric spring for FST designs that require relatively high deflection and good performance at low service temperatures (-40 °C). The paper also evaluates the utility of simple SDOF models as a prediction tool, and the potential factors that would result in higher damping at the resonance frequencies (f0).
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Rajaram, S., Saurenman, H.J. (2015). Challenges in the Design and Fabrication of Elastomeric Springs for Floating Slab Tracks. In: Nielsen, J., et al. Noise and Vibration Mitigation for Rail Transportation Systems. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 126. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-44832-8_73
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DOI: https://doi.org/10.1007/978-3-662-44832-8_73
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