Download or read book High Speed Railway Track Dynamics written by Xiaoyan Lei and published by Springer. This book was released on 2016-09-28 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically summarizes the latest research findings on high-speed railway track dynamics, made by the author and his research team over the past decade. It explores cutting-edge issues concerning the basic theory of high-speed railways, covering the dynamic theories, models, algorithms and engineering applications of the high-speed train and track coupling system. Presenting original concepts, systematic theories and advanced algorithms, the book places great emphasis on the precision and completeness of its content. The chapters are interrelated yet largely self-contained, allowing readers to either read through the book as a whole or focus on specific topics. It also combines theories with practice to effectively introduce readers to the latest research findings and developments in high-speed railway track dynamics. It offers a valuable resource for researchers, postgraduates and engineers in the fields of civil engineering, transportation, highway & railway engineering.
Download or read book Challenging Dynamics of High Speed Train written by A. S RANGWALA and published by . This book was released on 2020-10 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key Features:Intimate relationship between superconductivity and magnetic fields to achieve high speed highlighted. Dynamics between wheel, rail and track explained. Dynamics braking and its significance explained. Extensive coverage of magnetic levitated super fast trains will benefit engineering students and practicing engineers. Examples will electronic spread sheet type of calculation for loads, stresses, dynamic response and stability.About the Book:Magnetically levitated bullet trains are the most interesting development of the new millennium, recording travel at unheard of speed levels. The train levitates above the tracks using electromagnets to create a nearly friction less ride, without making contact with the ground. Moving more smoothly and quietly than wheeled mass transit systems, the power needed for levitation is mostly to overcome aerodynamic drag.A confluence of superconductivity and magnetic technologies has produced this spectacular event. Superconducting magnets do not dissipate energy to maintain the magnetic field. A superconductor levitated above a permanent magnet remains in stable equilibrium. Resistance to flow of electric current in the conductor vanishes, so the magnetically levitated coaches operate without external energy. At the same time, however, initial cost of development and installation is prohibitive.This book provides tools for design and operation of a massive locomotive pulling a heavily loaded train through mountainous regions. Extracting maximum power, emit acceptable levels of exhaust pollutants, accelerate smoothly and safely come to stop are of significance. Passenger coaches must not pitch and roll when subjected to strong cross winds, and while negotiating sharp curves.Safeguards from dynamic operating conditions are required to avoid failures from: Train derailment due to deformed wheel and deficiencies in track pathway ? Establish dynamic loads from interaction between wheel, rail and track ballast ? Design compliant mount between vehicle body and bogie wheel assembly ? Rolling contact stress and thermal fatigue in wheel from abrupt brake application.
Download or read book Challenging Dynamics of High speed Train written by Abdulla S. Rangwala and published by . This book was released on 2021 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safety Relevant Observations on the TGV High Speed Train written by and published by . This book was released on 1991 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Economics and Politics of High speed Rail written by Daniel Albalate and published by Lexington Books. This book was released on 2012 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technological revolution linked to high speed rail (HSR) has been accompanied by myths and claims about its contribution to society and the economy. Although HSR is unquestionably a technological advance that has become a symbol of modernity, this review and analysis of the international experiences shows that the conditions necessary to have a positive impact, economically, socially and environmentally, are enormously restrictive. The Economics and Politics of High Speed Rail: Lessons from Experiences Abroad, by Daniel Albalate and Germ Bel, introduces the main questions policy makers and scholars should examine when considering and studying HSR implementation, with particular emphasis on the US's recent interest in this technology and possible application in California. Albalate and Bel then review the experiences of the most significant implementations of HSR around the globe. This in-depth international perspective includes chapters on the pioneers of HSR (Japan and France), the European followers (Germany, Spain and Italy), as well as Asian experiences in China, Taiwan, and Korea. Albalate and Bel's study provides a clear distinction between the myths and realities associated with this transportation innovation. Among the most relevant findings, this study highlights how HSR projects that do not satisfy highly restrictive conditions--on mobility patterns, measured costs, and economically rational designs--that make it desirable have been the source of huge financial debacles and the economic failure of HSR in most cases, which result in unfortunate consequences for taxpayers. The Economics and Politics of High Speed Rail is a rigorous investigation of the economic and political challenges and ramifications of implementing new public transportation technology.
Download or read book Dynamics of Coupled Systems in High Speed Railways written by Weihua Zhang and published by Academic Press. This book was released on 2019-11-25 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamics of Coupled Systems in High-Speed Railways: Theory and Practice presents the relationship between various coupled systems that can affect train operation, including interaction between track and train, the pantograph-catenary system and train, power supply system and train, and airflow and train, with respect to the structure and characteristics of high-speed railway. The overall simulation optimization and control are achieved based on an analysis of the dynamics generated by coupled systems in high-speed trains, with a theoretical framework for the dynamics presented in the book. Presents the first book available on the dynamics of coupled systems in high-speed trains Provides a systematic view of high-speed vehicle dynamics, covering the issues that are especially concerned for high speed operations, such as high-speed pantograph and catenary, aerodynamic characteristics and running stability of high-speed trains Covers the optimization of dynamic performance, the design of parameters, the simulation of high-speed train service processes, and the identification of high-speed train state and condition assessment
Download or read book System Dynamics and Long Term Behaviour of Railway Vehicles Track and Subgrade written by Karl Popp and published by Springer Science & Business Media. This book was released on 2013-06-06 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last decades completely new technologies for high speed railway vehicles have been developed. The primary goals have been to increase traction, axle load, and travelling speed, and to guarantee the safety of the passengers. However, new developments have revealed new limitations: settlement and destruction of the ballast and the subgrade lead to deterioration of the track; irregular wear of the wheels causes an increase in overall load and deterioration in passenger comfort; and damage of the running surfaces of the rail and the wheel is becoming more frequent. These problems have been investigated in the Priority Programme SPP 1015 supported by the Deutsche Forschungsgemeinschaft (DFG), with the goal of better understanding of the dynamic interaction of vehicle and track, and the long-term behavior of the components of the system. The book contains the scientific results of the programme as presented at the concluding colloquium held at University of Stuttgart, Germany, 2002.
Download or read book High Speed Rail in the US written by Thomas Lynch and published by CRC Press. This book was released on 2020-08-26 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to help fill some of the technical and policy information gaps identified earlier as sources constraining further development of high speed rail (HSR) systems in the US. It addresses the key aspects of planning, development and implementation of HSR systems.
Download or read book Emerging Challenges and Opportunities of High Speed Rail Development on Business and Society written by Selladurai, Raj and published by IGI Global. This book was released on 2016-05-04 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasingly busy lives of people in modern society cause a high dependence on the transportation sector. Traffic congestion, road maintenance, and a myriad of other problems have led stakeholders to seriously examine alternatives to traditional road traveling. Emerging Challenges and Opportunities of High Speed Rail Development on Business and Society is an authoritative reference source on the promising aspects of high speed railway transportation to supplement road travel. Highlighting empirical research, implementations plans, and future opportunities, this book is ideally designed for government officials, researchers, upper-level students, and technology developers working in the field of transportation.
Download or read book Fundamentals of Rail Vehicle Dynamics written by Alan Wickens and published by CRC Press. This book was released on 2003-01-01 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Rail Vehicle Dynamics lays a foundation for the design of rail vehicles based on the mechanics of wheel-rail interaction as described by the equations of motion. The author advances simple models to elucidate particular challenges and demonstrate innovative systems while using analytical studies to examine novel design concepts. Rather than focusing on a "typical" set of parameters, the book discusses the issues associated with the complete range of parameters available, concentrating on the configuration and parametric design of the bogie in relation to steering, dynamic response, and stability. This is an excellent reference for designers and researchers involved vehicle development.
Download or read book Handbook of Railway Vehicle Dynamics written by Simon Iwnicki and published by CRC Press. This book was released on 2006-05-22 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the dynamics of railway vehicles, and indeed of the entire vehicle-track system, is critical to ensuring safe and economical operation of modern railways. As the challenges of higher speed and higher loads with very high levels of safety require ever more innovative engineering solutions, better understanding of the technical issues a
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 328 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.
Download or read book Dynamic Analysis of a High speed Train written by Sonia Leva and published by . This book was released on 2008 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Railroad Vehicle Dynamics written by Ahmed A. Shabana and published by CRC Press. This book was released on 2007-07-23 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational multibody system approaches have been extensively used in modeling many physical systems. Railroad Vehicle Dynamics: A Computational Approach presents computational multibody system formulations that can be used to develop computer models for complex railroad vehicle systems. Focusing on nonlinear formulations, this book explains the limitations of linearized formulations that are frequently used in analysis. Vehicle/rail interaction, a distinguishing feature of railroad vehicle systems, requires a special force or kinematic element to be included in multibody system algorithms. Using this approach, the authors address and solve geometric problems that are specific to railroad vehicle systems.
Download or read book Handbook of Railway Vehicle Dynamics Second Edition written by Simon Iwnicki and published by CRC Press. This book was released on 2019-11-14 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Railway Vehicle Dynamics, Second Edition, provides expanded, fully updated coverage of railway vehicle dynamics. With chapters by international experts, this work surveys the main areas of rolling stock and locomotive dynamics. Through mathematical analysis and numerous practical examples, it builds a deep understanding of the wheel-rail interface, suspension and suspension component design, simulation and testing of electrical and mechanical systems, and interaction with the surrounding infrastructure, and noise and vibration. Topics added in the Second Edition include magnetic levitation, rail vehicle aerodynamics, and advances in traction and braking for full trains and individual vehicles.
Download or read book Stochastic Model of High speed Train Dynamics for the Prediction of Long time Evolution of the Track Irregularities written by Nicolas Lestoille and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Railways tracks are subjected to more and more constraints, because the number of high-speed trains using the high-speed lines, the trains speed, and the trains load keep increasing. These solicitations contribute to produce track irregularities. In return, track irregularities influence the train dynamic responses, inducing degradation of the comfort. To guarantee good conditions of comfort in the train, railways companies perform maintenance operations of the track, which are very costly. Consequently, there is a great interest for the railways companies to predict the long-time evolution of the track irregularities for a given track portion, in order to be able to anticipate the start off of the maintenance operations, and therefore to reduce the maintenance costs and to improve the running conditions. In this thesis, the long-time evolution of a given track portion is analyzed through a vector-valued indicator on the train dynamics. For this given track portion, a local stochastic model of the track irregularities is constructed using a global stochastic model of the track irregularities and using big data made up of experimental measurements of the track irregularities performed by a measuring train. This local stochastic model takes into account the variability of the track irregularities and allows for generating realizations of the track irregularities at each long time. After validating the computational model of the train dynamics, the train dynamic responses on the measured track portion are numerically simulated using the local stochastic model of the track irregularities. A vector-valued random dynamic indicator is defined to characterize the train dynamic responses on the given track portion. This dynamic indicator is constructed such that it takes into account the model uncertainties in the train dynamics computational model. For the identification of the track irregularities stochastic model and the characterization of the model uncertainties, advanced stochastic methods such as the polynomial chaos expansion and the multivariate maximum likelihood are applied to non-Gaussian and non-stationary random fields. Finally, a stochastic predictive model is proposed for predicting the statistical quantities of the random dynamic indicator, which allows for anticipating the need for track maintenance. This modeling is constructed using the results of the train dynamics simulation and consists in using a non-stationary Kalman-filter type model with a non-Gaussian initial condition. The proposed model is validated using experimental data for the French railways network for the high-speed trains.
Download or read book The Development of High speed Trains written by Torbjörn Flink and published by . This book was released on 1993 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
