Railway ground vibrations induced by wheel and rail singular defects

Railway local irregularities are a growing source of ground-borne vibration and can cause negative environmental impacts, particularly in urban areas. Therefore, this paper analyses the effect of railway track singular defects (discontinuities) on ground vibration generation and propagation. A vehicle/track/soil numerical railway model is presented, capable of accurately predicting vibration levels. The prediction model is composed of a multibody vehicle model, a flexible track model and a finite/infinite element soil model. Firstly, analysis is undertaken to assess the ability of wheel/rail contact models to accurately simulate the force generation at the wheel/rail contact, in the presence of a singular defect. It is found that, although linear contact models are sufficient for modelling ground vibration on smooth tracks, when singular defects are present higher accuracy wheel/rail models are required. Furthermore, it is found that the variation in wheel/rail force during the singular defect contact depends on the track flexibility, and thus requires a fully coupled vehicle/track/foundation model. Next, a parametric study of ground vibrations generated by singular rail and wheel defects is undertaken. Six shapes of discontinuity are modelled, representing various defect types such as transition zones, switches, crossings, rail joints and wheel flats. The vehicle is modelled as an AM96 train set and it is found that ground vibration levels are highly sensitive to defect height, length and shape.

[1]  Cyril M. Harris,et al.  Shock and vibration handbook , 1976 .

[2]  I. L. Vér,et al.  Wheel/rail noise—Part III: Impact noise generation by wheel and rail discontinuities , 1976 .

[3]  V. Garg.  Chapter 4 – Wheel–Rail Rolling Contact Theories , 1984 .

[4]  V K Garg,et al.  Dynamics of railway vehicle systems , 1984 .

[5]  Klaus Knothe,et al.  Receptance behaviour of railway track and subgrade , 1998 .

[6]  Chris Jones,et al.  Ground vibration generated by a load moving along a railway track , 1999 .

[7]  Christian Madshus,et al.  HIGH-SPEED RAILWAY LINES ON SOFT GROUND: DYNAMIC BEHAVIOUR AT CRITICAL TRAIN SPEED , 2000 .

[8]  G. Athanasopoulos,et al.  Effect of soil stiffness in the attenuation of Rayleigh-wave motions from field measurements , 2000 .

[9]  Geert Degrande,et al.  FREE FIELD VIBRATIONS DURING THE PASSAGE OF A THALYS HIGH-SPEED TRAIN AT VARIABLE SPEED , 2001 .

[10]  D. Thompson,et al.  A comparison of a theoretical model for quasi-statically and dynamically induced environmental vibration from trains with measurements , 2003 .

[11]  Yeong-Bin Yang,et al.  Train-induced wave propagation in layered soils using finite/infinite element simulation , 2003 .

[12]  David Thompson,et al.  A theoretical study on the influence of the track on train-induced ground vibration , 2004 .

[13]  Chris Jones,et al.  A theoretical model for ground vibration from trains generated by vertical track irregularities , 2004 .

[14]  Hirokazu Takemiya,et al.  Substructure Simulation of Inhomogeneous Track and Layered Ground Dynamic Interaction under Train Passage , 2005 .

[15]  D. C. Rizos,et al.  A 3D BEM-FEM methodology for simulation of high speed train induced vibrations , 2005 .

[16]  Jiahao Lin,et al.  Non-stationary random ground vibration due to loads moving along a railway track , 2006 .

[17]  Simon Iwnicki,et al.  Handbook of railway vehicle dynamics , 2006 .

[18]  Chris Jones,et al.  Prediction of ground vibration from trains using the wavenumber finite and boundary element methods , 2006 .

[19]  L. Auersch.  The Influence of the Soil on Track Dynamics and Ground-Borne Vibration , 2008 .

[20]  D. Clouteau,et al.  Dynamic response of high-speed ballasted railway tracks: 3D periodic model and in situ measurements , 2008 .

[21]  J. Domínguez,et al.  Experimental and numerical analyses of vibrations induced by high-speed trains on the Córdoba–Málaga line , 2009 .

[22]  Geert Lombaert,et al.  Ground-borne vibration due to static and dynamic axle loads of InterCity and high-speed trains , 2009 .

[23]  Rui Calçada,et al.  Influence of soil non-linearity on the dynamic response of high-speed railway tracks , 2010 .

[24]  David Thompson,et al.  Ground Vibration from Trains: Experimental Parameter Characterization and Validation of a Numerical Model , 2011 .

[25]  G. Lombaert,et al.  A 2.5D coupled FE-BE methodology for the dynamic interaction between longitudinally invariant structures and a layered halfspace , 2010 .

[26]  Georges Kouroussis,et al.  Discrete modelling of vertical track–soil coupling for vehicle–track dynamics , 2011 .

[27]  Georges Kouroussis,et al.  Free field vibrations caused by high-speed lines: Measurement and time domain simulation , 2011 .

[28]  L. Auersch.  Train induced ground vibrations: different amplitude-speed relations for two layered soils , 2012 .

[29]  Konstantinos Vogiatzis,et al.  Protection of the cultural heritage from underground Metro vibration & ground borne noise in Athens centre: The case of Kerameikos Archaeological Museum & Gazi Cultural centre , 2012 .

[30]  Georges Kouroussis,et al.  Influence of some vehicle and track parameters on the environmental vibrations induced by railway traffic , 2012 .

[31]  A. Mirza,et al.  Ground Vibration Induced by Railway Traffic – The Influence of Vehicle Parameters , 2012 .

[32]  Georges Kouroussis,et al.  Efficiency of resilient wheels on the alleviation of railway ground vibrations , 2012 .

[33]  Rui Calçada,et al.  Influence of train dynamic modelling strategy on the prediction of track–ground vibrations induced by railway traffic , 2012 .

[34]  Guangyun Gao,et al.  Investigation of ground vibration due to trains moving on saturated multi-layered ground by 2.5D finite element method , 2012 .

[35]  G. Lombaert,et al.  Subgrade stiffening next to the track as a wave impeding barrier for railway induced vibrations , 2013 .

[36]  Georges Kouroussis,et al.  Investigating the influence of soil properties on railway traffic vibration using a numerical model , 2013 .

[37]  Georges Kouroussis,et al.  Symbolic generation of the kinematics of multibody systems in EasyDyn: From MuPAD to Xcas/Giac , 2013 .

[38]  Peter Keith Woodward,et al.  Optimising low acoustic impedance back-fill material wave barrier dimensions to shield structures from ground borne high speed rail vibrations , 2013 .

[39]  Laurent Van Parys,et al.  Prediction of Ground Vibrations Induced by Urban Railway Traffic: An Analysis of the Coupling Assumptions Between Vehicle, Track, Soil, and Buildings , 2013 .

[40]  Georges Kouroussis,et al.  Field testing and analysis of high speed rail vibrations , 2014 .

[41]  Georges Kouroussis,et al.  Scoping prediction of re-radiated ground-borne noise and vibration near high speed rail lines with variable soils , 2014 .

[42]  Georges Kouroussis,et al.  Railway-induced ground vibrations – a review of vehicle effects , 2014 .

[43]  Olivier Verlinden,et al.  Using three-dimensional finite element analysis in time domain to model railway-induced ground vibrations , 2014, Adv. Eng. Softw..

[44]  Juliette Florentin,et al.  Ground vibrations induced by InterCity/InterRegion trains: a numerical prediction based on the multibody/finite element modeling approach , 2016 .

[45]  Georges Kouroussis,et al.  A comprehensive prediction model for vehicle/track/soil dynamic response due to wheel flats , 2016 .