High-Speed RailPub Date : 2019-06-19DOI: 10.5772/INTECHOPEN.86070
H. Yaghoubi
{"title":"Introductory Chapter: High-Speed Railways (HSR)","authors":"H. Yaghoubi","doi":"10.5772/INTECHOPEN.86070","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.86070","url":null,"abstract":"High-speed railways (HSR) are defined as an intercity passenger transportation system that is time-competitive with air and/or auto on a door-to-door basis. The main reason for considering the implementation of rapid transportation systems is higher speed, which can easily equate to shorter travel time. The rapid expansion of transportation industries worldwide, including railways, and the never-ending desire to reduce travel time have highlighted the need to resort to the advanced transit systems. Conventional railway systems have been modified to make them travel at much higher speeds. People have always demanded reduction in travel time for many good reasons such as trade, leisure, etc. This has forced rapid expansion of transportation industries worldwide, including railways. Consequently, highspeed transit systems have been introduced in many countries. These systems are manufactured based on advanced engineering methods and technologies. Rapid transit systems must fulfill the major elements of the transport politics. The main aims consist in the increase of speed in the transportation corridors, flexibility, environmental acceptance, ride comfort, stresses (noise, pollutions, and vibrancies), etc. Mobility and transportation infrastructure guarantee a high grade of freedom and quality for the citizens, for their work, and leisure time. Infrastructure is an important location factor in the regional and global sense. It strongly influences the development of the society and the growth of the national economies. The mobility of individuals is impossible without an equivalent volume of traffic and","PeriodicalId":165371,"journal":{"name":"High-Speed Rail","volume":"279 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134366489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
High-Speed RailPub Date : 2018-11-05DOI: 10.5772/INTECHOPEN.80013
E. Ruiz, I. Carrascal, D. Ferreño, J. Casado, S. Diego
{"title":"Optimization of Components of Superstructure of High-Speed Rail: The Spanish Experience","authors":"E. Ruiz, I. Carrascal, D. Ferreño, J. Casado, S. Diego","doi":"10.5772/INTECHOPEN.80013","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.80013","url":null,"abstract":"The performance of rail transport has increased significantly in recent decades, in particular due to the gradual introduction of high-speed rails worldwide. In 1981, the first high-speed line of the world was inaugurated; nowadays, high-speed is operating in more than 20 countries, the high-speed network covering more than 35,000 kms (with more than 25,000 additional kms under construction). Spain is the second country by total distance of railways installed (only behind China) and the first in terms relative to the population and surface. Since the installation of the first high-speed line in Spain in 1992, the elements of the superstructure have undergone a continuous evolution, in order to improve the performance, the dura-bility of the components and the comfort of the passengers. This evolution rests on an adequate selection of materials based on the characterization of their physical and mechanical properties to ensure the optimum in-service conditions. This chapter includes an overview of the different elements present in the railway superstructure of the high-speed lines in Spain. Throughout the text, the innovations incorporated over time are analyzed, as well as the methods used to validate them. In particular, a description of the mechanical characterization procedures is presented.","PeriodicalId":165371,"journal":{"name":"High-Speed Rail","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123236723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
High-Speed RailPub Date : 2018-11-05DOI: 10.5772/INTECHOPEN.81159
Lu Zhou, Xiao-Zhou Liu, Y. Ni
{"title":"Contemporary Inspection and Monitoring for High-Speed Rail System","authors":"Lu Zhou, Xiao-Zhou Liu, Y. Ni","doi":"10.5772/INTECHOPEN.81159","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.81159","url":null,"abstract":"Non-destructive testing (NDT) techniques have been explored and extensively utilised to help maintaining safety operation and improving ride comfort of the rail system. As an ascension of NDT techniques, the structural health monitoring (SHM) brings a new era of real-time condition assessment of rail system without interrupting train service, which is significantly meaningful to high-speed rail (HSR). This chapter first gives a review of NDT techniques of wheels and rails, followed by the recent applications of SHM on HSR enabled by a combination of advanced sensing technologies using optical fibre, piezoelectric and other smart sensors for on-board and online monitoring of the railway system from vehicles to rail infrastructure. An introduction of research frontier and development direction of SHM on HSR is provided subsequently concerning both sensing accuracy and efficiency, through cutting-edge data-driven analytic studies embracing such as wireless sensing and compressive sensing, which answer for the big data ’ s call brought by the new age of this transport.","PeriodicalId":165371,"journal":{"name":"High-Speed Rail","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122695557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
High-Speed RailPub Date : 2018-11-05DOI: 10.5772/INTECHOPEN.80302
A. Vereschaka, P. Alexey, Grigoriev Sergey, Kulikov Mikhail, Sotova Catherine
{"title":"Main Ways to Improve Cutting Tools for Machine Wheel Tread Profile","authors":"A. Vereschaka, P. Alexey, Grigoriev Sergey, Kulikov Mikhail, Sotova Catherine","doi":"10.5772/INTECHOPEN.80302","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.80302","url":null,"abstract":"This chapter considers the methods to increase the performance and reliability of the reprofile machining of the wheel tread profile. Proceeding from the fact that both in milling and turning, the cutting tool is a key element to ensure performance and reliability of the manufacturing process, the study considers the methods to increase the performance properties of cutting tools. In particular, the study includes the investigation of the following ways to improve cutting tools (carbide inserts) to machine wheel tread profile: replacement of traditional grades of WC-TiC-Co carbides with more efficient ones based on WC-TiC-TaC-Co; application of special thermally conductive pads, gaskets, and pastes to improve the distribution of heat flows in the cutting zone; and application of modern nanoscale composite multilayer coatings (NMCC). It is noted that even higher performance can be obtained by combining the above three methods, in particular, by combining application of special thermal pads and NMCC.","PeriodicalId":165371,"journal":{"name":"High-Speed Rail","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132616213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
