If you need to print pages from this book, we recommend downloading it as a pdf. Causes of rail cant and controlling cant through wheel. Vehicle dynamics and the wheelrail interface by jerry evans, aea technology rail simon iwnicki, manchester metropolitan university mmu from. Pdf vehicle dynamics and the wheelrail interface researchgate. When damage is contained by a better design of the wheelrail interface, maintenance can be better planned and can become preventive, thereby extending the life of the components of both vehicle and track. Overhead wire catenary measurement system noncontact, timeofflight laser sensors measure the wire position and stagger with respect to the running rails.
Understanding the wheelrail interface part one the. The greater the variation in horizontal movement, the greater the risk of corrugation. Request pdf wheelrail interface handbook many of the engineering problems of particular importance to railways arise at interfaces and the safety critical. A unique suite of data acquisition equipment was employed.
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. Wheel rail interface handbook pdf free download epdf. Pdf presented at wheels on rails an update, seminar of the institution of mechanical engineers, london, april 2002. In the uk, the hatfield derailment in 2000 was caused by gauge corner cracking, which is a form of rolling contact fatigue. Load quantification of the wheelrail interface of rail. Avoidance of rail replacement by means of depositrepair welding procedures. How is the noise captured in these two sound files generated at the wheelrail interface. Maintenance of the wheelrail interface sciencedirect. Wheelrail interface handbook is a onestop reference for railway engineering practitioners and academic researchers. Jun 06, 2015 this feature is not available right now. View question what is the structure of the contact search method named equivalent elastic contact search used in wheel rail module of. The good environmental properties of rail stem from the low coefficient of friction. Wheelrail interface handbook request pdf researchgate.
Rail wheel interface analysis rail vision europe ltd. Download it once and read it on your kindle device, pc, phones or tablets. No part of this site may be reproduced or used without prior written permission from wheel rail seminars. 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. Appendix a effect of wheelrail profiles and wheelrail.
The cracking initiation and crack propagation processes that occur in rails as a result of contact between wheels and rails are described. The wheel rail interface and key terminology the contact patch and contact pressures creepage, friction and traction forces wheelsetgeometry and effective conicity vehicle steering and curving forces rail and wheel wear. Huimin wu transportation test center, inc, pueblo, co number of words. No such compromise can be reached without sustaining a sensible dialogue across the wheelrail interface. Rail wheel systems cm2003 in gothenburg, sweden june 10, 2003 submitted to wear journal june 2003 optimal design of wheel profile for railway vehicles i. This report documents a multiyear, multimember collaborative research effort to demonstrate machinevision enabled wheel rail characterization, monitoring and analytics. Fundamentals of wheelrail interaction michael roney consultant and retired chief engineer, canadian pacific dr. High friction at wheel treadrail top contact for locomotives intermediate friction at wheel treadrail top contact especially for freighy cars low friction in wheel flangerail gauge corner contact we can use friction modifiers for this purpose. Foster rail technologies with the assistance of and permission from sahha 2015 technical workshop, birchwood hotel 8 october, 2015. The michigan mines ship their product by rail to either escanaba, mi or marquette, mi. Implementing optimized wheel and rail profiles on the.
Wheelrail interface handbook free download as pdf file. Causes of rail cant and controlling cant through wheelrail interface management brad kerchof norfolk southern railway, roanoke, va dr. Pdf wheelrail contact modelling and analysis, considering. Integrated wheelrail characterization through advanced. Wheel rail interface handbook is a onestop reference for railway engineering practitioners and academic researchers. Less likely, the inner wheel tries to make the outer wheel turn slower, success resulting in negative scuff on the high rail. Recommend modifications to wheel maintenance procedures 9. Adhesion traction is the friction between the drive wheels and the steel rail. Develop a unified plan for lubricationfriction modification of the wheel rail interface 6.
The wheelrail interface is the contact area where wheelrail interaction between wheels and rails in railways takes place. State of the art roller rig for precise evaluation of wheel. Esveld section of road and railway engineering faculty of civil engineering and geosciences, delft university of technology stevinweg 1, nl2628, cn delft. You can find the comparison in the pdf files i have added. Olofssoncrc press boca raton boston new york washington, dc. Testing was done, using class 387 rolling stock provided by gwr, at the rail innovation and development centre melton to determine the optimum arrangements. Wheelrail interaction archives page 3 of 4 interface journal. Appendix a effect of wheelrail profiles and wheelrail interaction. 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. Halifax and calder valley rail views and campaigners. Rail wheel interface systems focus on understanding the dynamic interaction between the rail wheel and the rail while the vehicle is in motion. Wheel rail interface monash institute of railway technology.
Use features like bookmarks, note taking and highlighting while reading wheel rail interface handbook. Analyzing the dynamics of high speed rail 10th hydrail conference 22 june 2015 george list, nc state. Evaluate modifications to maintenance procedures to improve wheel rail interaction phase 3 7. Read chapter appendix a effect of wheelrail profiles and wheelrail interaction on system performance and maintenance in transit operations. Rail wheel contact zone 1 sq cm exposed to dirt, high humidity, leaves, rain. 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.
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 typical radius of 7mm. All logos and ed images on this site are the exclusive property of their respective owners. Jan 04, 2014 by bob tuzik july, 2007 youve heard it before, youll hear it again. The wheelrail interface is the contact area where wheelrail interaction between wheels and. Flange lubrication british standard this document is limited to specifying the requirements when applying lubricants to the wheel rail interface between the wheel flange and the rail gauge corner active interface either directly or indirectly to the wheel flange or to the rail, and includes both trainborne and. Rail wheel interaction indian railways institute of. An adhesion railway relies on adhesion traction to move the train. Archived from the original pdf on february 1, 2014. This article describes the wheelrail interface management wrim model being. Causes of rail cant and controlling cant through wheelrail. Abnormal wheel motion patterns can be caused because of poor rail profile or poor track geometry leading to damage to both wheels as well as the rails. Engineering consultancy frazernash is providing safety validation, verifying whether the system can o. Wheels on rails an update, understanding and managing the wheelrail interface imeche seminar, london, april 2002 2002 the institution of mechanical engineers 1. Wheel rail interface handbook kindle edition by lewis, r.
Network rails high marnham test track have been awarded a. Railwheel systems cm2003 in gothenburg, sweden june 10, 2003 submitted to wear journal june 2003 optimal design of wheel profile for railway vehicles i. Wheelrail contact modelling and analysis, considering profiles types and lateral displacement. 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. Nov 17, 2016 introduction to light rail wheel rail interface pwi technical meeting john paff, lead track engineer 17 november 2016. Ab this article describes the wheelrail interaction 07 seminar held in chicago, and discusses various ways in which safety, fuel efficiency and service life can be improved by focusing on the dimesized area where a trains wheel meets the rail. Vertical integration literally across the wheelrail interface is perhaps more critical than geographical boundaries. 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.
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