This study combines structural failure analysis, finite element analysis, fracture mechanics, and reliability analysis methods to develop a new methodology to analyze and simulate railroad wheel failure. Improving the performance of finite element simulations on. Measurement of the wheelrail relative displacement using the. This paper is a revised and expanded version of an article entitled, contact stress analysis in wheelrail by hertzian method and finite element method presented in national conference on recent advancements in mechanical engineering held at north east regional institute of science and technology, arunachal pradesh. A dynamic simulation of the wheelrail impact caused by a wheel. Wheelset structural flexibility andrack t flexibility in. Theres a lot of information in this railroad industry. Proceedings of the international ansys conference, pittsburgh. Improving the performance of finite element simulations on the. Interaction in the contact zone between a wheel and rail is. Fundamentals of wheelrail interaction michael roney consultant and retired chief engineer, canadian pacific dr. Appendix a effect of wheelrail profiles and wheelrail. Foster rail technologies with the assistance of and permission from sahha 2015 technical workshop, birchwood hotel 8 october, 2015. Image analysis to reveal crack development using a computer simulation of wear and rolling contact fatigue.
The solid model of rail wheel contact model is created in catia v5. Modelling of nonsteadystate transition from singlepoint to. Dynamic analysis of wheelrail interaction using finite element method. A change in designed surface topology may result from wear that brings in a wide change in contact geometry and stresses. Pdf analysis of wheelrail interaction for the development of a new. Development of a railway wagontrack interaction model. Mashal in partial fulfilment of the requirements for the degree of master of science in structural engineering at the delft university of technology, to be defended publicly on tuesday july, 2016 at 15. Journal of computational and nonlinear dynamics, vol. Contact mechanics analysis of measured wheelrail profiles using the finite element method all machine elements working in.
In order to visualize the wheelrail interaction, a graphical tool was developed. Read fe method to predict damage formation on curved track for various worn status of wheelrail profiles, wear on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The maximum operating speed for realtime data analysis can now reach up to. Olofsson, contact mechanics analysis of measured wheelrail profiles using the finite element method journal of rail and rapid transit, proc. Dynamics analysis of wheel rail contact using fea sciencedirect. Dynamic response of railway bridges under heavyhaul. Wheelset structural flexibility andrack t flexibility in vehiclerack t dynamic interaction by.
Contact mechanics analysis of measured wheel rail profiles using the finite element method all machine elements working in contact are subject to various degradation mechanisms. Analysis and improvement of railway crossing using explicit finite element simulations by a. The development of composite mechanical contacts and thermal braking loads for. Rail traffic information and daynight conversion al appendix b. Analysis of wheelrail interaction using fe software has been studied by sladkowski and sitarz 4. The solid model of railwheel contact model is created in catia v5. Fourier series are used to mathematically describe the geometry of vehicle wheel with a metal protuberance.
Sep 15, 2014 years of study and analysis have gone into wheelrail interaction in both the heavyhaul and transit industries. Fe model of the wheelrail system with a 60mm flat length. Analysis of wheelrail interaction for the development of. Wheel rail profiles and vehicle steering behavior are such that the curve can be considered mild the contact area at each wheel tread low rail interface is approximately circular, with a. Dynamic analysis of windvehiclebridge system based on rigid. Analysis of wheelrail contact geometry on railroad turnout using longitudinal interpolation of rail profiles.
A dynamic wheelrail impact analysis of railway track. A finite element methodology to study soilstructure. Reasonable solution method would reduce the computational effort and improve the solution efficiency in a certain extent. Kevin oldknow chief engineer, wheelrail interface l. Development of a vehicletrack interaction model to predict. In this type of bridges, the correct analysis of ssi requires proper modeling of the soil. Appendix a effect of wheelrail profiles and wheelrail interaction on system performance and maintenance in transit operations unfortunately, this book cant be printed from the openbook. This paper presents results of the finite element fe analysis of dynamic interaction between a heavy truck and a selected highway bridge on us 90 in florida. The aptaarema relationship seeks to promote the exchange of information across industries.
Measurement of the wheelrail relative displacement for. Development of a vehicletrack interaction model to. This research is divided into four objectives as follows. Modelling of nonsteadystate transition from singlepoint. To study the influence of interacting wheel and rail profile topology of standard rail uic60, the standard wheel profile as per indian railway standards are considered in this paper. By bob tuzik july, 2008 as research into wheelrail interaction has evolved, the emphasis has moved toward implementation of available technology and conversion of data into information. This wheelrail interaction is also applied to analyzing the wheelrail interaction as a part of.
Modelling and simulation of dynamic wheelrail interaction. Careful attention is paid to stress properties in the normal direction of the contact. The finite element method analysis was carried out in abaqus software. Hence, the wheelrail rolling contact has been a hot issue. According to the modal density of the ubeam plates, fe and fesea bridge models are established respectively for plates having lower modal density lower than 5 and plates having. Analysis of wheel rail interaction using fe software j, wear. Without having an appropriate understanding of the wheelrail interaction, the essential safety analysis of stability and derailment or the ride comfort analysis are incomplete 2. Such was the case at wheelrail interaction 08, the 14th annual seminar produced by advanced rail management and sponsored by progressive railroading magazine.
If you need to print pages from this book, we recommend downloading it as a pdf. Structural analysis is performed to locate the critical zones and surfaces with the help of finite element method fem using msc fea software for weight reduction. The evolutions of the contact position, stress magnitude and direction, adhesionslip distribution, and wheelrail relative. Analysis of rail wheel contact stresses by using ansys ansys is finite element analysis software which enables engineers to perform the following tasks. Pablo antolin, jose maria goicolea, javier oliva, miguel angel astiz.
Stress analysis on rail wheel contact semantic scholar. The result obtained from the analysis is shown with the plots between various. Development of advanced computational models of railway. Using measurements of wheel and rail profiles as input, the tool is based on the finite element fe code ansys. Luis velarte 0 1 2 antonio enrique blanco 0 1 2 0 foundation for the research and engineering in railways, 160 serrano, 28002 madrid, spain 1 university institute for multidisciplinary mathematics, polytechnic university of. Pdf a dynamic wheelrail impact analysis of railway. Mechanical properties and corrosion mechanism of gfrp rebar in alkaline solution. The wheelrail impact response induced by a wheel flat for highspeed trains is simulated numerically, based on the strain ratedependent constitutive parameters of wheelrail materials, using the finite element software lsdyna explicit algorithm. Method for evaluating the performance of railway crossing.
In the highspeed cases, the dynamic wheelrail interaction is. The wheel rail interaction conference offers one of the best educational, networking and professional development values in the industry. Thesis this thesis applies the modelling and simulation of wear in a rollingsliding contact to wheelrail analysis. The work is presented in the five appended papers that are summarised below. Modelling and simulation of dynamic wheel rail interaction using a roller rig a anyakwo, c pislaru, a ball and f gu centre for diagnostic engineering, university of huddersfield, queensgate, huddersfield hd 1 3dh, united kingdom email. Research on the variation of residual stress in the rail. In this paper, a numerical procedure is presented for the analysis of wheelrail rolling contact behavior and damage prediction for the flange bearing frog.
Analysis of wheelrail interaction using fe software. A winkler method is used to calculate the normal pressure. The mesh and mesh density of wheelrail finite element models change. Wheel rail interface monash institute of railway technology. The data analysis software computes the contact parameters by placing each wheelset on the measured rail pair. Worksheet method ci steam sound from trains environmental analysis method 1. Modelling and simulation of dynamic wheelrail interaction using a roller rig a anyakwo, c pislaru, a ball and f gu centre for diagnostic engineering, university of huddersfield, queensgate, huddersfield hd 1 3dh, united kingdom email. Introduction the impact of railway noise is an important factor to be considered when planning sensitive land uses. In this paper, a threedimensional coupled finite element fe model of a heavyhaul freight traintrackbridge hhfttb is established using multibody dynamics. The wheelrail contact has been of crucial interest to the railway engineers.
A robust finite element analysis of the railwheel rolling contact. Considerable benefits can be gained through appropriate wheel rail interface management, including reduced defect rates, improved safety, extended wheel and rail life, improved vehicletrack interaction, reduced wheel rail noise and the development of suitable standards and maintenance procedures. Research on the variation of residual stress in the rail caused by the wheels repeated rolling. To simulate the 3d contact interaction analysis of railwheel, the following. Fe analysis of vehiclebridge interaction was conducted using commercial program lsdyna and the super computer at the florida state university.
Dynamic analysis of windvehiclebridge system based on. The issue of the wheelrail interaction may be solved in two different waysusing either the model of a moving irregularity between a stationary wheel and rail, or the model of a moving wheel along the rail. In order to assess the effectiveness of these measures, this paper develops a vehicletrack interaction model in the time domain of a curved track with presence of rail. The study aims at the dynamic analysis of the wvb system based on rigidflexible coupling method, which takes advantage of the high modeling efficiency for structures of fe software and the powerful wheel rail analysis function of mbs software. A fast timedomain model for wheelrail interaction demonstrated for the case of impact forces caused by wheel ats a. Pdf dynamic analysis of wheelrail interaction using finite. Finite element analysis of the wheelrail impact behavior.
With the development of modern computing techniques and the. An important consideration when using an fe model to do. Analysis of wheelrail interaction for the development of a new tramway wheel profile. Measurement of the wheelrail relative displacement using.
A tool and a method for fe analysis of wheel and rail interaction. In the fe model, the rails and sleepers are modeled with solid elements, while the railpads and ballast are modeled as linear springs and viscous dampers. The whole finite element model for wheelrail rolling contact was built using commercial software. This work has been supported by the european social fund within the project development and application of innovative research methods and solutions for traffic structures, vehicles. The dynamic model of the vehicle body, a freight bogie and the truck systems of uic60 rail were modelled and analysed using an explicit method with a commercial fe software considering the real. The wheel load will be transited from tread to flange and back to tread, which will intensify the wheel rail interaction. Research on the variation of residual stress in the rail caused by the wheels repeated rolling p. Considerable benefits can be gained through appropriate wheelrail interface management, including reduced defect rates, improved safety, extended wheel and rail life, improved vehicletrack interaction, reduced wheelrail noise and the development of suitable standards and maintenance procedures. Analysis of wheelrail interaction using fe software j, wear, 2005, 25878. Imperfections in the wheelrail contact are one of the main sources of generation of railway vibrations. In this paper, a numerical procedure is presented for the analysis of wheel rail rolling contact behavior and damage prediction for the flange bearing frog.
It contains an introduction and the following papers. The system is based on the realtime image processing method in order to guarantee a uniform sampling rate. Ansys software is utilized with the purpose of simulating the system. Years of study and analysis have gone into wheelrail interaction in both the heavyhaul and transit industries. Development of advanced computational models of railway vehicles extended abstract. Weight reduction, modal analysis and testing of an indian. Ansys wb static structural fea simulation of rotating a. This enables the explicit fe method to avoid certain difficulties of nonlinear programming that the. Analysis of wheel rail interaction using fe software has been studied by sladkowski and sitarz.
Analysis of railway wheel to study crack initiation due to thermal. Since the early 1970s, numerical simulations of the dynamic behavior of rail vehicles and the interaction between vehicle and track have been performed. Kropp chalmers university of technology, division of applied acoustics, se41296 gothenburg. Assessment of the factors influencing micropitting in rollingsliding contacts. A new solution method for wheelrail rolling contact. Modeling of subsurface cracking in railroad wheels 2. We offer high quality ansys tutorials and finite element analysis solved cases for mechanical engineering. This wheelrail interaction is also applied to analyzing the wheelrail interaction as a part of the monitoring systems in dynamic environments. Load cases and boundary conditions are applied as per international. The model is calibrated either with results from finite element simulations which can include a plastic.
Consequently, it is essential to take expensive corrective maintenance measures, the results of which may be unknown. According to the modal density of the ubeam plates, fe and fe sea bridge models are established respectively for plates having lower modal density lower than 5 and plates having higher modal density higher than 5 by using the va. Dynamic analysis of wheelrail interaction using finite. Jan 04, 2014 by bob tuzik july, 2008 as research into wheelrail interaction has evolved, the emphasis has moved toward implementation of available technology and conversion of data into information. The wheel rail contact has been of crucial interest to the railway engineers. Dynamic response of railway bridges under heavyhaul freight. Jul 10, 2015 imperfections in the wheelrail contact are one of the main sources of generation of railway vibrations. In the freight railway bridge, the increase of the train running speed and train axle loads can enlarge dynamic response dr of the railway bridges, which leads to excessive vibration of bridges and endangers the structural safety. Investigation on wheelrail contact and damage behavior in. Read modelling of nonsteadystate transition from singlepoint to twopoint rolling contact, tribology international on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Since 1994 we have hosted speakers and attendees from around the globe, bringing focus and understanding to the critical area of wheelrail interaction. The cast steel bolster is modeled according to drawings using nx 7.
Without having an appropriate understanding of the wheelrail interaction, the essential safety analysis of stability and derailment or. Conference paper pdf available july 2016 with 744 reads. For numeric simulation, the transient wheelrail rolling contact in railway system is a very complex and timeconsuming process. Without having an appropriate understanding of the wheel rail interaction, the essential safety analysis of stability and derailment or the ride comfort analysis are incomplete 2. Jan 15, 2015 read fe method to predict damage formation on curved track for various worn status of wheelrail profiles, wear on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Nonlinear trainbridge lateral interaction using a simplified wheelrail contact method within a finite element framework. Analysis of wheel rail interaction using fe software.
Railway engineers are, to the certain extent, successfully applied one of the numerical computation techniques known as finite element analysis fea into rail wheel contact problems to validate their results by comparing them to their real life data obtained over the years. A tool has been developed for contact mechanics analysis of the wheelrail contact. This paper analyzes the dynamic soilstructure interaction ssi of a railway bridge under the load transmitted by highspeed trains using the finite element method fem. Dynamic analysis of wheelrail interaction using finite element. Validation of software for rectangular contact the rectangular contact method of the esdu, used as the basis for the computer method to calculate the values for a. Prior to the 3dfe simulations, the 2dgeo contact analysis is performed to better define the contact properties that are in demand for fe analyses. Dtrack is a software developed for track dynamic analyses. Part 1 3 the wheel rail interface anatomy and key terminology the contact patch and contact pressures creepageand traction forces. Investigation on wheelrail contact and damage behavior in a. Sep 01, 2016 by considering real wheel and track geometry and structures, as well as their coupled interaction, an explicit finite element method is applied to simulate the transition of wheelrail rolling from singlepoint tread contact to twopoint treadflange contact. Analysis of wheelrail interaction using fe software, wear, 258. An efficient and accurate model for the dynamic assessment of vehicletrack behavior subjected to cross wind actions is developed in this paper, where the windvehicletrack interaction is regarded as a coupled vibration system. Calculations and analysed results, obtained by using the newly. The software used here is able to run simulations in a batch mode with a variation of the.
Foster rail technologies with the assistance of and permission from sahha 2015 technical workshop, birchwood hotel 8. There are enormous challenges before indian railways 1. Mechanics of the railwheel contact is one of the fundamental areas of the study. The study aims at the dynamic analysis of the wvb system based on rigidflexible coupling method, which takes advantage of the high modeling efficiency for structures of fe software and the powerful wheelrail. Development of a vehicletrack interaction model to predict the vibratory benefits of rail grinding in the time domain julia irene real 0 1 2 clara zamorano 0 1 2 jose. The quasihertz method as well as a finite element fe method were included as basis of mathematical simulation. Aiming to improve the performance of fe analysis on the wheelrail interaction, a new efecs strategy, that couples the 3dfe model and the 2dgeo contact model, has been presented. Finite element analysis of vehiclebridge interaction. Franklinb a aea technology rail bv, po box 8125, 3503 rc, utrecht,the netherlands b the university of sheffield, department of mechanical engineering, mappin street, sheffield, s1 3jd, u. Twomaterial rail development to prevent rolling contact. The wheel load will be transited from tread to flange and back to tread, which will intensify the wheelrail interaction.
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