Brinksma, volgens besluit van het college voor promoties in het openbaar te verdedigen op vrijdag 19 februari 2010 om 15. 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. A novel practical element is presented for simulating the vertical wheelrail interaction wri of vehicletrackbridge vtb coupling systems. Pdf wheelrail interaction due to the polygonal wheel. Fundamentals of wheelrail interaction michael roney consultant and retired chief engineer, canadian pacific dr.
The rail transit seminar is devoted to examining wheelrail and vehicletrack interaction on light rail and subway operations. Part one provides the fundamentals of contact mechanics, wear, fatigue and lubrication as well as stateoftheart research and emerging technologies related to the wheelrail interface and its management. This interaction also affects fuel consumption, derailment risk, and vehicle stability. This model is employed to investigate dynamic response of wheelrail interaction at theoretical and measured rail weld, including wheelrail force and axlebox acceleration. Friction in wheel rail contacts universiteit twente. Effects of rail cant on wheelrail contact forces in slab. This crossdisciplinary seminar will include presentations from experts in vehicletrack dynamics, noise and vibration, wheel rail profile design and maintenance, and friction management. To increase train speeds for heavy haul prevent undue wear reduce costs safety, guidance and stability of vehicle passenger comfort energy efficiency environment. Rail cant parameter, applied in order to attain suitable movement of wheel on rail, directly influences in dy namic interaction of track vehicle. A study on the wheelrail interaction at switch points to reduce derailments in turnouts by samet ozturk a thesis submitted to the faculty of the university of delaware in partial fulfillment of the requirements for the degree of master of civil engineering spring 2014.
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. Effects of profile wear on wheelrail contact conditions. The wheelrail interface is the contact area where wheelrail interaction between wheels and rails in railways takes place. For instance, kassa and nielsen 5,6 used the commercial multibody system mbs software, gensys, to model the dynamic interaction between the railway vehicle and turnout. Wheelrail dynamic interaction due to excitation of rail. The paper is focused on the interaction between tram wheel and rail, which was. The wheelrail interaction model is formulated in the timedomain and includes a linear wheel model and a linear track model, which are coupled through a nonlinear contact model describing the local elastic deformation of wheel and rail. In this preferred embodiment the wheel rail interaction force prediction device is implemented using a rabbit 3000 processor operating at 40 mhz with has 256 kb of ram. Pdf on new effects of wheelrail interaction robert. Rail transit seminar wheel rail interaction conference. The motion sensor outputs are processed by the processing device. Pdf presented at wheels on rails an update, seminar of the institution of.
Part one provides the fundamentals of contact mechanics, wear, fatigue and lubrication as well as stateoftheart research and emerging technologies related to the wheel rail interface and its management. The considered parameters are wheel profile and wheelrail friction coefficient. Wheel rail interaction based on roughness calculation m. Part 1 3 the wheel rail interface anatomy and key terminology the contact patch and contact pressures creepageand traction forces. Exemplary simulation of freight car interaction with track. In this paper, the effect of geometrical parameters on the behaviour of dynamic interact ion. Study on wheelrail interaction based on rail roughness. The number of measurement tools, the number of parameters that can be measured, and the accuracy of those measurements have changed the way wheel and rail systems. Simulation of wheelrail interaction in turnouts and. Wheelrail interaction analysis tanel telliskivi tritammk 2003. Modelling of wheelrail interaction considering roughness and discrete irregularities astrid pieringer department of civil and environmental engineering division of applied acoustics, vibroacoustic group chalmers university of technology abstract the interaction between wheel and rail is the predominant source of noise emission. Modelling of wheelrail interaction considering roughness.
For rail stress and relative displacement calculations a fixed embankment spring can be conservatively used for total displacement checks or for calculating railstructure interaction forces forces imposed on the bridge by a continuously welded rail compare fixed condition and a lower bound embankment stiffness. Us20090076742a1 estimation of wheel rail interaction. Con sequently, the model being developed uses the energy approach to evaluate the wheelrail interactions that influence rail wear and rcf formation. Researcharticle dynamic response of wheelrail interaction at rail weld in highspeed railway boyangan,1,2 pingwang,1,2 jielingxiao,1,2 jingmangxu,1,2 androngchen1,2 1moekeylaboratoryofhighspeedrailwayengineering,southwestjiaotonguniversity,chengdu610031,china.
Pdf wheel rail interface handbook download full pdf. Investigation into rail corrugation in highspeed railway tracks from the viewpoint of the frictional selfexcited vibration of a wheelrail system on new effects of wheelrail interaction archive of applied mechanics, jun 2012. In the darts model, the loads were introduced via hertzian springs traversing a sineshaped railtrack surface, as shown in fig. The rail transit seminar is devoted to examining wheel rail and vehicletrack interaction on light rail and subway operations. The dynamic wheelrail interaction at rail welding irregularities is investigated, leading to quantitative relationships between key parameters describing this interaction. Three types of wheels are considered with different contact stiffness and wheelplate design. The conference includes seminars on wheelrail interaction in separate sessions devoted to transit, heavy haul, and principles courses. Kevin oldknow chief engineer, wheelrail interface l. Mechanical engineering 733 january 2011 with 238 reads how we measure reads.
Calculation of wheelrail contact geometry calculation principle the calculation of wheelrail contact geometry is used to analyze the influence of the profile wear on the figure 2. Vehicle steering and curving forces the wheel set 30. Modelling and simulation of dynamic wheelrail interaction using a. Fundamentals of wheelrail interaction international heavy haul. This crossdisciplinary seminar will include presentations from experts in vehicletrack dynamics, noise and vibration, wheelrail profile design and maintenance, and friction management. Pdf vehicle dynamics and the wheelrail interface researchgate.
Vibration of the whole system is very noteworthy in terms of the servicelife of. The dynamic interaction of wheel and rail is a key problem in a railway system. Rolling noise is a relevant source in railway applications. This interaction is a specialist subject covering the design and management of the very high stresses in the small contact area. Wheelrail interaction due to the polygonal wheel article pdf available in upb scientific bulletin, series d. Wheel rail interaction based on roughness calculation. Kevin oldknow chief engineer, wheel rail interface l. Instrumented study of the wheelrail interaction jve. A numerical analysis of ground vibration induced by.
An efficient interaction between the vehicle and the track can support large loads per axle, and an inappropriate design and maintenance of the wheelrail interface can bear to a fast degradation of the system components and put in. Pdf dynamic analysis of wheelrail interaction using. As an excitation source of the train vibration, rail surface roughness has significant. The detailed modelling of rail track dynamic and wheelrail interaction was studied in 1992 while dtrack program for dynamic simulation also have been created by cai for his phds thesis of queens university in canada 30. In the first step, a vehicletracktunnel rigidflexible coupling subsystem is established based on a lumped mass model dynamics and finite element analysis cosimulation method to simulate the generation of. This work reports a 3d finite element model of wheelrail rolling contact which can simulate dynamic wheelrail interaction at arbitrary contact geometry up to 400 kmh. Wheel rail interface handbook is a onestop reference for railway engineering practitioners and academic researchers. Rail wheel interaction indian railways institute of. Staying on the rails with vehicletrack interaction. Ambala cantt ludhiana amritsar mainline electric multiple unit m emu. The wri is time and locationvarying, which makes the simulation of the vtb system complicated. Simulation of wheelrail interaction in turnouts and special track work. Provide background information and important concepts relating to wheel. For the roller rig, the wheel and roller profiles are scaled down based on onefifth of the actual wheelrail profile.
A practical wheelrail interaction element for modeling. Rail interaction fundamentals for railway professionals. The wheelrail interaction short course will develop an appreciation of the multidisciplinary nature of the technology that substantially adds to the bottom line of any railway business. Two reports were produced after the phase i work and are presented as appendices. 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. Wheelrail contact behaviors in the switch have been studied with a number of laboratory experiments and numerical procedures. Environmental vibration and noise pollution caused by the operation of subway is a hot topic of concern at home and abroad. Napolitano department of industrial engineering university of naples federico ii via claudio, 80, 80034 naples italy massimo. The interaction between the wheel and rail greatly influences the dynamic response of railway vehicles on the track. On new effects of wheelrail interaction pdf paperity. By jeff tuzik its easier now than ever to collect data on wheelrail interaction. Rail wheel interaction 02 free download as powerpoint presentation.
Influences of the corrugation wavelength and depth on the wheelrail dynamic performance are investigated. The paper is devoted to the experimental, theoretical analysis and computer simulation of influence of elastic properties of contact stiffness and wheelplate stiffness on the forces of vehicletrack interaction. Sponsored by progressive railroading, advanced rail management corp. Gordon bachinsky, founder of wheelrail seminars, which organizes the conference, says this year more than 250 rail professionals from throughout north america are set to attend the fourday event. Afterward, iwnick has done a benchmark, which was called manchester benchmarks in 1998 31. Characteristics of wheelrail dynamic interaction due to the rail corrugation in a highspeed railway are analyzed based on the theory of vehicletrack coupled dynamics in this paper. P x z v f n f n r s w l s kp cp m sl kb b ks cs m w m w kw cw ei, kga, m figure 3. Flange climb derailment criteria and wheelrail profile. The wheel rail force indications are transmitted from the device by radio transmitter.
Interface journal the journal of wheelrail interaction. Vibration of the whole system is very noteworthy in terms of the servicelife of the components, driving safety and passenger comfort. There is a need to research dynamic interaction between trains and track in order to solve environmental vibration and noise pollution caused by the operation of train. The full scale wheelroller profiles are shown in figure 1. Wheelrail interface handbook is a onestop reference for railway engineering practitioners and academic researchers. The wheelrail geometry was obtained from new p8 wheel and bs 110a rail profiles. Railtrack irregularities can be considered as one of the most important sources of loads, generated by a moving train. Knowledge of wheelrail interaction is essential for anyone involved in the operations of railways over the full spectrum of heavy. Wheelrail interaction enterprises university of pretoria. Track and infrastructure failure is the second leading cause of train derailments in the united states.
Dynamic response of wheelrail interaction at rail weld in. A method for forcebased weld assessment is elaborated as an alternative for. Rail wheel interaction 02 friction wear free 30day. The influence of contact modelling on simulated wheelrail.
Wheel rail interaction call for papers trains magazine. Vibration of the whole system is very noteworthy in terms of the servicelife of the components, driving safety and. Pdf analysis of wheelrail interaction for the development of a new. Wheelrail wear and surface fatigue depend greatly on the contact stress, which in turn is controlled by the wheelrail profiles and the way they interact. Foster rail technologies with the assistance of and permission from sahha 2015 technical workshop, birchwood hotel 8 october, 2015.
Investigation of wheel flange climb derailment criteria for transit vehicles phase i report. A twostep approach is used to establish a numerical prediction model to study the impact of typical rail corrugation on ground vibration from an underground subway. Trains is the presenting sponsor of wheel rail interaction. If you need to print pages from this book, we recommend downloading it as a pdf. On new effects of wheelrail interaction springerlink.
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