Wheelrail interaction archives page 3 of 4 interface. Dynamic analysis of wheelrail interaction using finite. Wheel rail interface rail adhesion from wikipedia, the free encyclopedia. The whole finite element model for wheelrail rolling contact was built using commercial software hypermesh, which includes two wheels the one with a fresh flat, one axle and two rails. By bob tuzik for three years running, new york city transit and the federal transit administration have kicked off the annual wheelrail interaction rail transit conference with discussion of the nyctfta research project to explore integrated wheelrail analytics on mtanycts no. Fourier series are used to mathematically describe the geometry of vehicle wheel with a metal protuberance. Analysis of wheelrail interaction using fe software j, wear, 2005, 25878. Contact stress analysis in rolling bodies by finite. Kropp chalmers university of technology, division of applied acoustics, se41296 gothenburg. Severe wear is a common damage mechanism in railway turnouts. A dynamic wheelrail impact analysis of railway track under wheel flat by finite element analysis. Calculations and analysed results, obtained by using the newly.
A dynamic wheelrail impact analysis of railway track. A new solution method for wheelrail rolling contact. By bob tuzik january, 2008 all railways must deal with operatingengineering and vehicletrack interaction issues. Several industry practitioners participated in such a discussion at advanced rail management and progressive railroading magazines wheelrail interaction 08, the 14th. Contact mechanics analysis of measured wheelrail profiles using the finite element method all machine elements working in. This video will explain the fundamental of lower natural frequencies and mode shapes.
Effect of wheelrail interface parameters on contact. The present paper proposes analytical study on wear. Sathish gandhi department of mechanical engineering, university college of engineering nagercoil, anna university. Livermore software technology corporation, livermore, california. The paper presents results of multibody simulation analysis of the influence. Using measurements of wheel and rail profiles as input, the tool is based on the finite element fe code ansys. Dynamics analysis of wheel rail contact using fea sciencedirect. Measurement of the wheelrail relative displacement for the. Implementing wheelrail measurement and analysis technology. Contact mechanics analysis of measured wheelrail profiles using the finite element method all machine elements working in contact are subject to various degradation mechanisms. Effect of wheelrail interface parameters on contact stability in. With these tools, distributions of contact zones for different angles of attack of the. Many studies of wear were done using pinondisc tribometer on interaction between the wheels rail.
If you are interested in building and performing similar scenarios, you can download. By bob tuzik july, 2007 youve heard it before, youll hear it again. Analyses on wheelrail contact using finite element method. The wheel has a s1002cn tread and the radius of 430 mm, while the rail is the 60 kgm steel rail with a base slope of 1. Dynamic analysis of wheelrail interaction using finite element method.
The solution of frictional wheelrail rolling contact with. Without having an appropriate understanding of the wheelrail interaction, the essential safety analysis of stability and derailment or the ride comfort analysis. Analysis of rail wheel contact stresses by using ansys ansys is finite element analysis software which enables engineers to perform the following tasks. Riding through rail crossings involves flange tips in formation of the contact with rails. 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. Reasonable solution method would reduce the computational effort and improve the solution efficiency in a certain extent.
Overview 2 part 1 the wheel rail interface anatomy and key terminology. The 24th annual wheel rail interaction conference will be held april 30 to may 3, 2018, at the crowne plaza chicago ohare hotel, in rosemont, ill. Jan 04, 2014 as research into wheelrail interaction has evolved, the emphasis has moved toward implementation of available technology and conversion of data into information. Aleksander sladkowski, marek sitarzanalysis of wheelrail interaction using fe software. The quasihertz method as well as a finite element fe method were included as basis of mathematical simulation. No part of this site may be reproduced or used without prior written permission from wheel rail seminars. Balancing the wheelrail equation and optimizing interaction can only be done through engineering analysis and the application of technology. Proper simulation provides clear understanding of a detailed knowledge of physical interaction between wheel and rail. Yet, the effect of these interface parameters on the explicit finite element based solutions of wheelrail interaction has not been discussed sufficiently in literature.
Rail transit seminar wheel rail interaction conference 2017. Since 1994 we have hosted speakers and attendees from around the globe, bringing focus and understanding to the critical area of wheelrail interaction. Hence, the wheelrail rolling contact has been a hot issue. Fe based quasistatic wheelrail contact simulations has been. In this paper, a threedimensional coupled finite element fe model of a heavyhaul freight traintrackbridge hhfttb is established using multibody dynamics.
Analysis of wheelrail interaction for the development of a new tramway. Improving performance, finite element analysis, wheelrail interaction, coupling strategy. A preliminary study on simpler geometries was carried out, in order to identify the solution strategies giving more. Olofssoncontact mechanics analysis of measured wheelrail profiles using the finite element method. Then, the contact pressure distributions calculated using elastic hertz theory and.
Realistic wheel, wing rail and crossing geometries have been used in the model. The mesh and mesh density of wheelrail finite element models. Improving the performance of finite element simulations on the. The input image of the wheelrail passes to a feature extractor which is to reduce the data by measuring certain properties that can distinguish features of wheelrail. Analysis of wheelrail interaction using fe software has been studied by sladkowski and sitarz 4. Study on the adhesion characteristic between wheel and rail. Methods of simulation of railway wheelset dynamics taking into account elasticity gennady mikheev1.
On the modelling of wheelrail noise astrid pieringer division of applied acousticscharmec, chalmers universi ty of technology, 41296 go teborg, sweden, email. 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. Methods of simulation of railway wheelset dynamics taking. 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. A practical wheelrail interaction element for modeling. Dynamic response of railway bridges under heavyhaul. A robust finite element analysis of the railwheel rolling contact. This interaction is a specialist subject covering the design and management of the very high stresses in the small contact area between a steel wheel and steel rail. Threedimensional elasticplastic finite element analysis for. Analysis of dynamic wheelrail interaction caused by measured. The model of the moving irregularity is much easier to use and it is currently utilized for the frequencydomain analysis 5.
Contact stress analysis in rolling bodies by finite element method fem statically vahid monfared department of mechanical engineering, zanjan branch, islamic azad university, zanjan, iran. A tool and a method for fe analysis of wheel and rail interaction. The solid model of railwheel contact model is created in catia v5. Trains is the presenting sponsor of wheel rail interaction. Then, the dynamic stresses in the subgrade bed layers subjected to heavyhaul trains were studied in detail.
The wheel rail interaction conference offers one of the best educational, networking and professional development values in the industry. For these reasons, the multibody system simpack and finite element software ansys. Pdf dynamic analysis of wheelrail interaction using finite. In this paper, the relation between interface parameters and the accuracy of contact solutions is studied. Author links open overlay panel aleksander sladkowski marek sitarz. If you need to print pages from this book, we recommend downloading it as a pdf. Speakers at rail transit 07, advanced rail management and interface journals third seminar devoted to wheelrail interaction on rail. Liu, xiaoyuan, zhai, wanming and bruni, stefano 20 analysis of dynamic wheelrail interaction caused by measured outofround railway wheels.
The model generated should be accurately calculating the 3d stress. The wri is time and locationvarying, which makes th. 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. Abstract wheelrail interaction is one of the most important research topics in. Dynamic explicit analysis has been used for the simulation of a moving load, and the train speed effect has been studied. Wheel rail interaction call for papers trains magazine. Also it will demonstrated the step by step how to do steady state dynamics analysis in abaqus standard. 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. Such was the case at wheelrail interaction 08, the 14th annual seminar produced by advanced rail management and sponsored by progressive railroading magazine. Fea software package ansys and validated by another validated simulation. 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. Mechanical properties and corrosion mechanism of gfrp rebar in alkaline solution. A 3d traintracksubgrade interaction finite element fe model was constructed using the abaqus code, where different vertical irregular track spectra were simulated by modifying the vertical node coordinates of the fe mesh of the rail.
Mechanics of the railwheel is one of the fundamental areas of the study. A tool has been developed for contact mechanics analysis of the wheelrail contact. Some useful results in the classical hertz contact problem were presented by sackfield and hills3. Part 1 3 the wheel rail interface anatomy and key terminology the contact patch and contact pressures creepageand traction forces. The study was developed with an aar c38wheel geometry and the mesh used has 1 mm.
A threedimensional 3d explicit dynamic finite element fe model is developed. In the present work, a threedimensional finite element fe model for the impact analysis induced by the wheel flat is developed by the use of the fe analysis fea software package ansys and validated by another validated simulation. Delegates to the th annual wheelrail interaction seminar presented by interface journaland advanced rail management heard it time and again over the course of the seminar. Monash irt and jakarta mrt partnership on indonesian railway projects recycled plastic is the new material for heritage railway sleepers. The importance of wheelrail interface management on energy savings and sustainability railroad wheels and rails are made of high strength steel. Detailed analysis of the wheel set and crossing interaction using the local. Appendix a effect of wheelrail profiles and wheelrail.
Effects of profile wear on wheelrail contact conditions and dynamic. Sitarz, analysis of wheelrail interaction using fe software, wear, vol. A novel practical element is presented for simulating the vertical wheelrail interaction wri of vehicletrackbridge vtb coupling systems. By bob tuzik july, 2008 any examination of the systems in use to measure and monitor wheelrail interaction requires a discussion of the challenges associated with implementing new and emerging technology.
Numerical analysis of the dynamic interaction between wheel set. Interface journal the journal of wheelrail interaction. Kevin oldknow chief engineer, wheelrail interface l. For numeric simulation, the transient wheelrail rolling contact in railway system is a very complex and timeconsuming process. Finite elements analysis of the railwheel rolling contact. Much has been written and said about the need to optimize the interface between the wheel and rail, but with the growth of heavy axle load traffic, the mandate for optimum performance is greater than ever. Wheelrail interaction is one of the most important research topics in railway engineering. Application of the dang van fatigue criterion to the rail. Modelling of nonsteadystate transition from singlepoint. In the present work a three dimensional finite element analysis of the wheel rail contact problem was performed using the software abaqus.
The data analysis software computes the contact parameters by placing each wheelset on the measured rail pair. Analysis of wheelrail interaction using fe software has been studied by sladkowski and sitarz4. Numerical simulation of wheel rolling over rail at highspeeds numerical simulation of wheel rolling over rail at highspeeds xiaoyu, jiang. A steel wheel requires very little energy to roll on a steel rail. There are enormous challenges before indian railways 1. Read numerical simulation of stress and deformation in a railway crossing, engineering failure analysis on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The work is presented in the five appended papers that are summarised below. Great interest is dedicated to the wheelrail contact problem, in particular as a result of some accidents worldwide and also in portugal. Research on the variation of residual stress in the rail. The wheelrail contact has been of crucial interest to the railway engineers. The rolling contact of the wheel and rail was considered as a twodimensional rolling contact in a pure rolling and. The contact addon to gensys is fully integrated in gensys, allowing to incorporate detailed wheelrail contact analysis in various vehicle dynamics scenarios.
Only some work in 2d explicit solution or solutions in statics,, have been reported. The main part of the finite element modeling involves the steadystate dynamic analysis, in which receptance functions were obtained and used as the criterion for evaluating the dynamic properties of track components. May 12, 2017 the whole finite element model for wheelrail rolling contact was built using commercial software hypermesh, which includes two wheels the one with a fresh flat, one axle and two rails. The wheel has a s1002cn tread and the radius of 430 mm, while. In this chapter, a technique of numerical analysis for the study of these fastenings is developed, based on the use of the finite element method.
The threedimensional elastic frictional finite element model of the wheelrail interaction is put forward to investigate effect of the curve radius and superelevation on the contact stress and. Proceedings of the international ansys conference, pittsburgh. Numerical simulation of wheel rolling over rail at high. Research on the variation of residual stress in the rail caused by the wheels repeated rolling p. However, treatment of the tangential problem of wheelrail rolling contact with fe is still rare. To improve the solving speed and efficiency, an explicitexplicit order solution method is put forward based on analysis of the features of implicit and explicit algorithm. Oct 28, 20 we offer high quality ansys tutorials and finite element analysis solved cases for mechanical engineering. The maximum operating speed for realtime data analysis can now reach up to. The importance of wheelrail interface on energy savings. 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. Analysis of wheelrail interaction using fe software, department. This research is divided into four objectives as follows. The interaction between wheelrail produced defects on each other.
In this section, the corresponding explicit fe theories, which are highly related to. 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. All logos and ed images on this site are the exclusive property of their respective owners. Ansys wb static structural fea simulation of rotating a. 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. In this study, threedimensional elasticplastic stress analysis of rolling contact of railway wheel is conducted on a 3d wheelrail model. There are also considered the processes that determine the life, such as rail wheel adhesion. The wheel rail contact has been of crucial interest to the railway engineers. Performance analysis of wheel and rail contact by nature of material characteristics a contact mechanics approach v. Contact mechanics analysis of measured wheelrail profiles. A fast timedomain model for wheelrail interaction demonstrated for the case of impact forces caused by wheel ats a.
It involves track impact response, track vibration and track safety. The present work is focused on the interaction between left and right wheels. 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. Foster rail technologies with the assistance of and permission from sahha 2015 technical workshop, birchwood hotel 8 october, 2015.
Dynamic contact analysis of wheel and rail mechanism for. Apr 18, 2016 to solve the problem of wheelrail rolling contact of nonlinear steadystate curving, a threedimensional transient finite element fe model is developed by the explicit software ansyslsdyna. Modelling and simulation of dynamic wheelrail interaction. Wear rates were determined using depth of wear prediction on the interaction surfaces between wheelrail. And test procedure for adhesion comparison under dry and wet is following. Tools and techniques for optimizing the wheelrail interface. Vehicle steering and curving forces the wheel set 30. This allows to compute vehicle stability and inspect derailments using kalkers full theory. A 3d finite element model of wheel and rail rolling contact is developed on the most critical section of rail track to analyse the maximum contact pressure using the phenomena of surface contact analysis module. Dynamic responses of wheelrail systems with block dampers. A solver mode in analysis software calculates the stresses, deflections, bending moments. Performance analysis of wheel and rail contact by nature of. With the development of modern computing techniques and the. The wheelrail interface is the contact area where wheelrail interaction between wheels and rails in railways takes place.
Managing wheelrail interaction on rail transit systems. Dynamic stress of subgrade bed layers subjected to train. Analysis of wheelrail interaction for the development of a new. Analysis of wheelrail interaction using fe software. But rail transit systems, which operate under the microscope of the urban environment, face special, often unique, challenges. Design and analysis of indian wheelrail assembly for. A tool and a method for fe analysis of wheel and rail interaction, machine elements, department of machine design royal institute of technology kth, stockholm, sweden. Modeling of subsurface cracking in railroad wheels 2. Wheelrail interaction, explicit finite element model, contact.
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