The mathematical and numerical studies were done by using quasihertz and fe analysis to analyze the impact of the interacting wheel and rail profiles on the distribution of contact zones and stresses. The present work is focused on the interaction between left and right wheels. Selected european wheel profiles were investigated on track with. Nonlinear trainbridge lateral interaction using a simplified wheelrail contact method within a finite element framework. Explicit finite element, switch panel, wheelrail impacts.
The data analysis software computes the contact parameters by placing each wheelset on the measured rail pair. To simulate the 3d contact interaction analysis of railwheel, the. Traditionally, two methods have been used to investigate the railwheel contact, namely hertzs analytical method and kalkers software program contact. The mesh and mesh density of wheelrail finite element models change.
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. The reason to opt for an explicit scheme was that it allows for the investigation of transient rolling when a high frequency dynamic effect has to be considered, for example, contact at track shortwavelength defects such as squats, poor welds, and fishplated joints. Performance analysis of wheel and rail contact by nature of. Improving the performance of finite element simulations on the. Reasonable solution method would reduce the computational effort and improve the solution efficiency in a certain extent.
Wheelrail interaction is one of the most important research topics in railway engineering. Journal of computational and nonlinear dynamics, vol. Rail transit seminar wheel rail interaction conference 2017. Complicated geometries like railwheel problems are solved by using finite element analysis software. A full explicit fem simulation of wheelset passing through switch panel is presented. A proper understanding of these mechanisms require a detailed knowledge of the wheel and rail interaction. A robust finite element analysis of the railwheel rolling contact. The model of the moving irregularity is much easier to use and it is currently utilized for the frequencydomain analysis 5. 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. A science based approach to improved wheel rail interaction. Hertzs analytical method 1, kalkers programs, and contact and fastsim 2. A method of modelling the vehicletrackground interaction is presented here using the commercial fe software abaqus. Stress analysis on rail wheel contact semantic scholar. On the modelling of wheelrail noise astrid pieringer division of applied acousticscharmec, chalmers universi ty of technology, 41296 go teborg, sweden, email.
The quasihertz method as well as a finite element fe method were included as basis of mathematical simulation. 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 rail interaction conference offers one of the best educational, networking and professional development values in the industry. Pdf dynamic analysis of wheelrail interaction using finite. There are also considered the processes that determine the life, such as rail wheel adhesion. This research is divided into four objectives as follows. 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. Dynamic explicit analysis has been used for the simulation of a moving load, and the train speed effect has been studied. Dynamics analysis of wheel rail contact using fea sciencedirect. If you need to print pages from this book, we recommend downloading it as a pdf. Moreover, the effect of contact forces and contact stresses on the deformation of rolling wheels and rails were also evaluated. Effect of wheelrail interface parameters on contact stability in. Railway applications testing for the acceptance of running. Contact mechanics analysis of measured wheelrail profiles.
An alternative solution of traintrack dynamic interaction. In this section, the corresponding explicit fe theories, which are highly related to. The solution of frictional wheelrail rolling contact with. Discussion of the results received with the help of fem. Sladkowski, aleksander and sitarz, marek, analysis of wheelrail interaction using fe software. The importance of wheelrail interface on energy savings. Since 1994 we have hosted speakers and attendees from around the globe, bringing focus and understanding to the critical area of wheelrail interaction. Interaction in the contact zone between a wheel and rail is. Coupled finite element and multibody system dynamics modeling. The importance of wheelrail interface management on energy savings and sustainability railroad wheels and rails are made of high strength steel.
Using standard vehicle components wheelsets, independent wheels, profiles, suspension elements and different wheel rail contact methods, makes it extremely versatile and easy to model inertiafixed and elastic tracks, including track irregularities and turnouts. Analysis and improvement of railway crossing using explicit finite element simulations by a. 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. A dynamic simulation of the wheelrail impact caused by a wheel. Multicriteria evaluation of wheelrail degradation at. A combined multibody and finite element approach for dynamic interaction analysis of highspeed train and railway structure including postderailment behavior during an earthquake.
Monash irt and jakarta mrt partnership on indonesian railway projects recycled plastic is the new material for heritage railway sleepers. You may elect to receive a fullcredit attendance at the next years events or send an alternate attendee from your organization. An fe model with multiple crossties and their accompanying fastening systems is developed and utilized in. In this work, an attempt to analyze the wheelrail contact interaction for various profiles of wheels and rails, including severely worn ones, is made. Analysis of wheelrail interaction using fe software.
A sciencebased approach to improved wheel rail interaction. Fe based quasistatic wheelrail contact simulations has been. Wheel, rail and sleeper responses are calculated and the sound power levels estimated through radiation efficiencies. Analyses on wheelrail contact using finite element method. Modeling of subsurface cracking in railroad wheels 2. Methods of simulation of railway wheelset dynamics taking into account elasticity gennady mikheev1, dmitry pogorelov1 and alexander rodikov1 1. Professional software analytic calculation 3d finite element. Dynamic analysis of wheelrail interaction using finite element method. Dynamic analysis of wheelrail interaction contact analysis. Mechanics of the railwheel contact is one of the fundamental areas of. By jeff tuzik for over 20 years, the wheelrail interaction conferences have brought together railway industry professionals, researchers and suppliers to share their expertise in the field of wheelrail interaction.
A fast timedomain model for wheelrail interaction demonstrated for the case of impact forces caused by wheel ats a. To improve the computational accuracy and broaden the application range, an alternative calculation method to investigate tti based on secondary development technology of the commercial software ansys through apdl. Design and analysis of indian wheelrail assembly for. Methods of simulation of railway wheelset dynamics taking. Pdf contact stress analysis in wheelrail by hertzian. Analysis of wheelrail interaction using fe software has been studied by sladkowski and sitarz 4. A full explicit finite element simulation for the study of interaction. A robust finite element analysis of the railwheel rolling. The wheel rail contact has been of crucial interest to the railway engineers. With the development of modern computing techniques and the. 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. Traintrack interaction tti is a classic research topic in railway engineering, which consists of three main parts, namely, train model, track model, and wheel rail interaction. This paper presents an analysis of the transient wheelrail frictional rolling impact contact using an explicit finite element model of the dynamic interaction between the wheel and fbfc. Kropp chalmers university of technology, division of applied acoustics, se41296 gothenburg.
For numeric simulation, the transient wheelrail rolling contact in railway system is a very complex and timeconsuming process. The paper is focused on the interaction between tram wheel and rail, which was. 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. 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. One of the most important questions relating to the exploitation. A dynamic wheelrail impact analysis of railway track. Appendix a effect of wheelrail profiles and wheelrail. The maximum operating speed for realtime data analysis can now reach up to. Until recently, the conferences have been held only in the united states and have drawn on north american experiences. The work is presented in the five appended papers that are summarised below. Simpack rail extends the functionality of the simpack system to model and analyse rail guided systems. 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. Hence, the wheelrail rolling contact has been a hot issue. Stardamp is a modelling tool that standardises damping techniques for the reduction of railway rolling noise.
Laboratory of computational mechanics, bryansk state technical university, bryansk, 241035,russia corresponding author email. A maximum of 70% of your registration fee may be refunded to you if wheel rail seminars receives written notice of cancellation on or before 61520. For this purpose, the dynamic wheel crossing interaction is analyzed using a 3d explicit fe model, and the wheel rail contact parameters serve as inputs for the multicriteria evaluation of the integrated performance of wheels and crossing rails in terms of yield behavior, rcf and wear. Analysis of wheel rail interaction using fe software 1.
Dynamic analysis of wheelrail interaction using finite. Interface journal the journal of wheelrail interaction. In the highspeed cases, the dynamic wheelrail interaction is. There are enormous challenges before indian railways 1. Thambiratnam dp, zhuge y 2008 finite element analysis of track. Sathish gandhi department of mechanical engineering, university college of engineering nagercoil, anna university. Feb 03, 2015 abaqus tutorial stress analysis of railroad with wheel quasistatic 152 bwengineering. 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. Kevin oldknow chief engineer, wheelrail interface l. Foster rail technologies with the assistance of and permission from sahha 2015 technical workshop, birchwood hotel 8 october, 2015. Wheel rail interface monash institute of railway technology.
Ansys software is utilized with the purpose of simulating the system. Hertzian method and finite element method presented in. Analysis of rail wheel contact stresses by using ansys ansys is finite element analysis software which enables engineers to perform the following tasks. Performance analysis of wheel and rail contact by nature of material characteristics a contact mechanics approach v. The wheelrail interface is the contact area where wheelrail interaction between wheels and rails in railways takes place. A steel wheel requires very little energy to roll on a steel rail. Abaqus tutorial stress analysis of railroad with wheel quasistatic 152 bwengineering. Using measurements of wheel and rail profiles as input, the tool is based on the finite element fe code ansys. The finite element method analysis was carried out in abaqus software.
A new solution method for wheelrail rolling contact. Analysis of wheel rail interaction using fe software has been studied by sladkowski and sitarz. This enables the explicit fe method to avoid certain difficulties of nonlinear programming that the. Analyses on wheelrail contact using finite element method during passing through curved track. 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. The software implements an analytical description of the interaction between wheel and track. Finie element analysis of railway track under vehicle. Fe model of the wheelrail system with a 60mm flat length.
A tool has been developed for contact mechanics analysis of the wheelrail contact. Numerical analysis for investigating wheelrail impact. The solid model of rail wheel contact model is created in catia v5. 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. Mechanics of the railwheel is one of the fundamental areas of the study in the railway engineering.
Dynamic analysis of wheelrail interaction using finite element. 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. 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. Parametric analysis of running speed, traction coefficient and the friction. Fundamentals of wheelrail interaction michael roney consultant and retired chief engineer, canadian pacific dr.
The whole finite element model for wheelrail rolling contact was built using commercial software. This study adopts measured wheel geometry and an elasticplastic material model for the simulations to provide an comprehensive understanding of the transient contact behavior of wheelfbfc impacts. Pablo antolin, jose maria goicolea, javier oliva, miguel angel astiz. This methodology divides the wheel rail contact in. Pdf analysis of wheelrail interaction for the development of a new.
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