Print Email Facebook Twitter Numerical modeling of wheel-rail squeal-exciting contact Title Numerical modeling of wheel-rail squeal-exciting contact Author Yang, Z. (TU Delft Railway Engineering) Li, Z. (TU Delft Railway Engineering) Date 2019 Abstract Complex frictional rolling contact and high-frequency wheel dynamic behavior make modeling squeal greatly challenging. The falling-friction effect and wheel mode-coupling behavior are believed to be the two main mechanisms that generate unstable wheel vibration and the resulting squeal noise. To rigorously consider both mechanisms in one model, we propose an explicit finite element (FE) model to simulate wheel-rail dynamic frictional rolling. Wheel-rail squeal-exciting contact is investigated with considerations of dynamic effects, unsteady lateral creepage and velocity-dependent friction. With the inclusion of the dynamic effects in the contact solution, large-creepage-induced waves, which share features with Rayleigh waves, are discovered. The solutions of the dynamic contact calculated using the proposed model indicate that the explicit FE method is able to reproduce the falling-friction effect. The transient analyses of wheel-rail frictional rolling with wheel lateral creepage show the coupling of the axial and radial dynamics of the rolling wheel model, suggesting that the explicit FE method can also reproduce the mode-coupling behavior. This study improves the understanding and modeling of squeal-exciting contact from the perspective of wheel-rail dynamic interaction. Subject Dynamic interactionExplicit FEMNumerical modelingSquealWheel-rail contact To reference this document use: http://resolver.tudelft.nl/uuid:2e66d26b-8b6a-43e7-9bb6-3538941f574b DOI https://doi.org/10.1016/j.ijmecsci.2019.02.012 Embargo date 2019-08-19 ISSN 0020-7403 Source International Journal of Mechanical Sciences, 153-154, 490-499 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2019 Z. Yang, Z. Li Files PDF 1_s2.0_S0020740318335689_main.pdf 2.8 MB Close viewer /islandora/object/uuid:2e66d26b-8b6a-43e7-9bb6-3538941f574b/datastream/OBJ/view