Error Estimation In Wheel Rail Normal Contact Area Measurements Using Pressure Sensitive Film

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Error Estimation in Wheel-Rail Normal Contact Area Measurements Using Pressure Sensitive Film

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Author : Jagoba Lekue
Publisher : Apprimus Wissenschaftsverlag
ISBN 13 : 3985550921
Total Pages : 142 pages
Book Rating : 4.9/5 (855 download)

Book Synopsis Error Estimation in Wheel-Rail Normal Contact Area Measurements Using Pressure Sensitive Film by : Jagoba Lekue

Download or read book Error Estimation in Wheel-Rail Normal Contact Area Measurements Using Pressure Sensitive Film written by Jagoba Lekue and published by Apprimus Wissenschaftsverlag. This book was released on 2022-06-23 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents a series of research activities with the goal of determining whether pressure measurement films are a suitable tool for a quantitative assessment of the wheel-rail contact area. Firstly, the effect of influential factors such as geometry, applied load and surface roughness on the resulting imprint was thoroughly examined by means of analytically approachable case studies. This allowed a precise determination of the systematic error that alters experimental outcomes. After that, finite element representations of the measurement procedure were explored in order to characterize the measurement deviation based on mechanical principles. By virtue of the excellent reproducibility of the measurement procedure, as well as the meaningful insight obtained from finite element simulations, an empirically calibrated film model that matches experimental outcomes was developed. This was alternately interposed between wheel and rail models to estimate the measurement error originated under typical operation conditions. The results underline the marked dependence of the measurement error on surface roughness but foresee a robust and reliable use of pressure measurement films for validation of wheel-rail contact models as long as both numerical and experimental solutions represent the same reality of interest.

Handbook of Contact Mechanics

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Author : Valentin L. Popov
Publisher : Springer
ISBN 13 : 3662587092
Total Pages : 357 pages
Book Rating : 4.6/5 (625 download)

Book Synopsis Handbook of Contact Mechanics by : Valentin L. Popov

Download or read book Handbook of Contact Mechanics written by Valentin L. Popov and published by Springer. This book was released on 2019-04-26 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book contains a structured collection of the complete solutions of all essential axisymmetric contact problems. Based on a systematic distinction regarding the type of contact, the regime of friction and the contact geometry, a multitude of technically relevant contact problems from mechanical engineering, the automotive industry and medical engineering are discussed. In addition to contact problems between isotropic elastic and viscoelastic media, contact problems between transversal-isotropic elastic materials and functionally graded materials are addressed, too. The optimization of the latter is a focus of current research especially in the fields of actuator technology and biomechanics. The book takes into account adhesive effects which allow access to contact-mechanical questions about micro- and nano-electromechanical systems. Solutions of the contact problems include both the relationships between the macroscopic force, displacement and contact length, as well as the stress and displacement fields at the surface and, if appropriate, within the half-space medium. Solutions are always obtained with the simplest available method - usually with the method of dimensionality reduction (MDR) or approaches which use the solution of the non-adhesive normal contact problem to solve the respective contact problem.

Contact Mechanics

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Author : K. L. Johnson
Publisher : Cambridge University Press
ISBN 13 : 9780521347969
Total Pages : 472 pages
Book Rating : 4.3/5 (479 download)

Book Synopsis Contact Mechanics by : K. L. Johnson

Download or read book Contact Mechanics written by K. L. Johnson and published by Cambridge University Press. This book was released on 1987-08-28 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This treatise is concerned with the stresses and deformation of solid bodies in contact with each other, along curved surfaces which touch initially at a point or along a line. Examples are a railway wheel and rail, or a pair of gear wheel teeth. Professor Johnson first reviews the development of the theory of contact stresses since the problem was originally addressed by H. Hertz in 1882. Next he discusses the influence of friction and the topographical roughness of surfaces, and this is incorporated into the theory of contact mechanics. An important feature is the treatment of bodies which deform plastically or viscoelastically. In addition to stationary contact, an appreciable section of the book is concerned with bodies which are in sliding or rolling contact, or which collide.

Applied Mechanics Reviews

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Author :
Publisher :
ISBN 13 :
Total Pages : 932 pages
Book Rating : 4.3/5 (243 download)

Book Synopsis Applied Mechanics Reviews by :

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1980 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rolling Contact Phenomena

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Author : Bo Jacobson
Publisher : Springer
ISBN 13 : 3709127823
Total Pages : 399 pages
Book Rating : 4.7/5 (91 download)

Book Synopsis Rolling Contact Phenomena by : Bo Jacobson

Download or read book Rolling Contact Phenomena written by Bo Jacobson and published by Springer. This book was released on 2014-05-04 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface.- Rolling Contact Phenomena - Linear Elasticity.- Finite Element Methods for Rolling Contact.- Plastic Deformation in Rolling Contact.- Non-Steady State Rolling Contact and Corrugations.- Modelling of Tyre Force and Moment Generation.- Rolling Noise.- Lubrication

Wheel-Rail Interface Handbook

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Author : R. Lewis
Publisher : Elsevier
ISBN 13 : 1845696786
Total Pages : 856 pages
Book Rating : 4.8/5 (456 download)

Book Synopsis Wheel-Rail Interface Handbook by : R. Lewis

Download or read book Wheel-Rail Interface Handbook written by R. Lewis and published by Elsevier. This book was released on 2009-09-25 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the engineering problems of particular importance to railways arise at interfaces and the safety-critical role of the wheel/rail interface is widely acknowledged. Better understanding of wheel/rail interfaces is therefore critical to improving the capacity, reliability and safety of the railway system. Wheel-rail interface handbook is a one-stop reference for railway engineering practitioners and academic researchers. Part one provides the fundamentals of contact mechanics, wear, fatigue and lubrication as well as state-of-the-art research and emerging technologies related to the wheel/rail interface and its management. Part two offers an overview of industrial practice from several different regions of the world, thereby providing an invaluable international perspective with practitioners’ experience of managing the wheel/rail interface in a variety of environments and circumstances. This comprehensive volume will enable practising railway engineers, in whatever discipline of railway engineering – infrastructure, vehicle design and safety, and so on – to enhance their understanding of wheel/rail issues, which have a major influence on the running of a reliable, efficient and safe railway. One-stop reference on the important topic of wheel rail-interfaces Presents the fundamentals of contact mechanics, wear, fatigue and lubrication Examines state-of-the-art research and emerging technologies related to wheel-rail interface and its management

Popular Science

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Author :
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4./5 ( download)

Book Synopsis Popular Science by :

Download or read book Popular Science written by and published by . This book was released on 2007-05 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.

Three-Dimensional Elastic Bodies in Rolling Contact

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Author : J.J. Kalker
Publisher : Springer Science & Business Media
ISBN 13 : 9401578893
Total Pages : 331 pages
Book Rating : 4.4/5 (15 download)

Book Synopsis Three-Dimensional Elastic Bodies in Rolling Contact by : J.J. Kalker

Download or read book Three-Dimensional Elastic Bodies in Rolling Contact written by J.J. Kalker and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for mechanicians, engineering mathematicians, and, generally for theoretically inclined mechanical engineers. It has its origin in my Master's Thesis (J 957), which I wrote under the supervision of Professor Dr. R. Timman of the Delft TH and Dr. Ir. A. D. de Pater of Netherlands Railways. I did not think that the surface of the problem had even been scratched, so I joined de Pater, who had by then become Professor in the Engineering Mechanics Lab. of the Delft TH, to write my Ph. D. Thesis on it. This thesis (1967) was weil received in railway circles, which is due more to de Pater's untiring promotion than to its merits. Still not satisfied, I feit that I needed more mathe matics, and I joined Professor Timman's group as an Associate Professor. This led to the present work. Many thanks are due to G. M. L. Gladwell, who thoroughly polished style and contents of the manuscript. Thanks are also due to my wife, herself an engineering mathematician, who read the manuscript through critically, and made many helpful comments, to G. F. M. Braat, who also read an criticised, and, in addition, drew the figures together with J. Schonewille, to Ms. A. V. M. de Wit, Ms. M. den Boef, and Ms. P. c. Wilting, who typed the manuscript, and to the Publishers, who waited patiently. Delft-Rotterdam, 17 July 1990. J. J.

Railway Noise and Vibration

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Author : David Thompson
Publisher : Elsevier
ISBN 13 : 9780080914435
Total Pages : 536 pages
Book Rating : 4.9/5 (144 download)

Book Synopsis Railway Noise and Vibration by : David Thompson

Download or read book Railway Noise and Vibration written by David Thompson and published by Elsevier. This book was released on 2008-12-11 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Railways are an environmentally friendly means of transport well suited to modern society. However, noise and vibration are key obstacles to further development of the railway networks for high-speed intercity traffic, for freight and for suburban metros and light-rail. All too often noise problems are dealt with inefficiently due to lack of understanding of the problem. This book brings together coverage of the theory of railway noise and vibration with practical applications of noise control technology at source to solve noise and vibration problems from railways. Each source of noise and vibration is described in a systematic way: rolling noise, curve squeal, bridge noise, aerodynamic noise, ground vibration and ground-borne noise, and vehicle interior noise. Theoretical modelling approaches are introduced for each source in a tutorial fashion Practical applications of noise control technology are presented using the theoretical models Extensive examples of application to noise reduction techniques are included Railway Noise and Vibration is a hard-working reference and will be invaluable to all who have to deal with noise and vibration from railways, whether working in the industry or in consultancy or academic research. David Thompson is Professor of Railway Noise and Vibration at the Institute of Sound and Vibration Research, University of Southampton. He has worked in the field of railway noise since 1980, with British Rail Research in Derby, UK, and TNO Institute of Applied Physics in the Netherlands before moving to Southampton in 1996. He was responsible for developing the TWINS software for predicting rolling noise. Discusses fully the theoretical background and practical workings of railway noise Includes the latest research findings, brought together in one place Forms an extended case study in the application of noise control techniques

Popular Science

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Author :
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4./5 ( download)

Book Synopsis Popular Science by :

Download or read book Popular Science written by and published by . This book was released on 2004-09 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.

Scientific American

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Author :
Publisher :
ISBN 13 :
Total Pages : 436 pages
Book Rating : 4.E/5 ( download)

Book Synopsis Scientific American by :

Download or read book Scientific American written by and published by . This book was released on 1897 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Popular Mechanics

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Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4./5 ( download)

Book Synopsis Popular Mechanics by :

Download or read book Popular Mechanics written by and published by . This book was released on 1929-02 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.

Scientific American

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Author :
Publisher :
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.E/5 ( download)

Book Synopsis Scientific American by :

Download or read book Scientific American written by and published by . This book was released on 1897 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fundamentals of Fluid Film Lubrication

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Author : Bernard J. Hamrock
Publisher : CRC Press
ISBN 13 : 1135537755
Total Pages : 794 pages
Book Rating : 4.1/5 (355 download)

Book Synopsis Fundamentals of Fluid Film Lubrication by : Bernard J. Hamrock

Download or read book Fundamentals of Fluid Film Lubrication written by Bernard J. Hamrock and published by CRC Press. This book was released on 2004-03-15 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specifically focusing on fluid film, hydrodynamic, and elastohydrodynamic lubrication, this edition studies the most important principles of fluid film lubrication for the correct design of bearings, gears, and rolling operations, and for the prevention of friction and wear in engineering designs. It explains various theories, procedures, and equations for improved solutions to machining challenges. Providing more than 1120 display equations and an introductory section in each chapter, Fundamentals of Fluid Film Lubrication, Second Edition facilitates the analysis of any machine element that uses fluid film lubrication and strengthens understanding of critical design concepts.

English Mechanic and Mirror of Science and Art

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Author :
Publisher :
ISBN 13 :
Total Pages : 690 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis English Mechanic and Mirror of Science and Art by :

Download or read book English Mechanic and Mirror of Science and Art written by and published by . This book was released on 1874 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rail Vehicle Dynamics

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Author : Klaus Knothe
Publisher : Springer
ISBN 13 : 3319453769
Total Pages : 321 pages
Book Rating : 4.3/5 (194 download)

Book Synopsis Rail Vehicle Dynamics by : Klaus Knothe

Download or read book Rail Vehicle Dynamics written by Klaus Knothe and published by Springer. This book was released on 2016-11-23 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on the dynamics of rail vehicles is developed from the manuscripts for a class with the same name at TU Berlin. It is directed mainly to master students with pre-knowledge in mathematics and mechanics and engineers that want to learn more. The important phenomena of the running behaviour of rail vehicles are derived and explained. Also recent research results and experience from the operation of rail vehicles are included. One focus is the description of the complex wheel-rail contact phenomena that are essential to understand the concept of running stability and curving. A reader should in the end be able to understand the background of simulation tools that are used by the railway industry and universities today.

The Engineer

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Publisher :
ISBN 13 :
Total Pages : 440 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis The Engineer by :

Download or read book The Engineer written by and published by . This book was released on 1862 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: