Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235)最新文献

Engineering the CBTC interface with the NYCT R143 vehicle 设计与NYCT R143车辆的CBTC接口

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-19 DOI: 10.1109/RRCON.2001.921747

E. Schaefer, E. Mortlock

{"title":"Engineering the CBTC interface with the NYCT R143 vehicle","authors":"E. Schaefer, E. Mortlock","doi":"10.1109/RRCON.2001.921747","DOIUrl":"https://doi.org/10.1109/RRCON.2001.921747","url":null,"abstract":"New York City Transit has embarked upon an extensive modernization program. Transit cars will employ AC drives and multiple microprocessor controlled systems instead of contactors, resistors, and relays. A new technology signal system based on communications based train control (CBTC) technology is also being introduced for long term deployment over the complete subway system. Microprocessors will replace traditional track circuits and wayside color light signals and tripstops. Signal equipment will now be installed onboard the cars, responsibility for the signal system will now be spread between two NYCT Divisions. In December 1998, New York City Transit signed a contract with Kawasaki Rail Car Inc. for R143 B Division transit cars. The contract was fast track with the first eight cars delivered in early 2001. Provisions were made for space, cables and wiring, and system functions to make the cars CBTC ready. The cars will enter passenger service for a period before the CBTC equipment is delivered, and the latter is intended to be \"plugged-in\" to the R143s as simply as possible. The CBTC/R143 integration process was complex and initially a common set of interfaces was developed with three short-listed proposers' systems. Upon award of the CBTC contract in December 1999, the interface was consolidated and finalized. The concept of developing detailed mechanical, electrical, and functional interfaces prior to the completion of the preliminary design of the CBTC was a challenge at best. Coupled with the tight R143 delivery schedule, there was pressure to make detailed engineering decisions at a very early stage of CBTC system design.","PeriodicalId":174709,"journal":{"name":"Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127155851","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}

引用次数: 2

Train control for light rail systems on shared tracks 共享轨道上轻轨系统的列车控制

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-19 DOI: 10.1109/RRCON.2001.921746

O. Cataldi, R. Alexander

{"title":"Train control for light rail systems on shared tracks","authors":"O. Cataldi, R. Alexander","doi":"10.1109/RRCON.2001.921746","DOIUrl":"https://doi.org/10.1109/RRCON.2001.921746","url":null,"abstract":"New Jersey Transit (NJT) will install a light rail system along the Delaware River connecting the cities of Camden and Trenton. Light rail vehicles (LRV) will share Conrail freight trackage through 85% of the 34 mile long route; this will be one of the few freight and light rail shared traffic lines in North America. The train control system for the Southern New Jersey Light Rail Transit System (SNJLRTS) will be used by both LRT and Conrail freight trains. Significant differences in operating characteristics of light rail vehicles and freight trains, such as maximum allowed speed, length and weight of the consist, and brake rate, constitute technical problems that require unique solutions to assure effective and safe traffic for both types of vehicles. The SNJLRTS will employ a relatively simple signaling system that includes three-aspect automatic block signaling and automatic trip stops at the signals with red aspects. Block signal design will be one of the major issues associated with mixed traffic. The rules for conventional block signal design will be only partially applicable for SNJLRTS. In order to comply with internal NJT practices and Federal Railroad Administration (FRA) rules, and at the same time fulfil contract specifications requirements, unique solutions must be found for certain block signal design elements. The logic of grade crossing warning functioning will be another critical issue for mixed traffic. This paper describes the technical solutions that reconcile the LRT and freight train operational differences while designing the SNJLRTS train control system.","PeriodicalId":174709,"journal":{"name":"Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129987773","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}

引用次数: 7

Design optimization of a freight car wheel 货车车轮的设计优化

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-19 DOI: 10.1109/RRCON.2001.921749

S. Dedmon, J. Pilch

引用次数: 2

Analysis of stray current, track-to-earth potentials and substation negative grounding in DC traction electrification system 直流牵引电气化系统杂散电流、轨地电位及变电站负接地分析

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-19 DOI: 10.1109/RRCON.2001.921758

Kinh D. Pham, E. P., Ralph, Thomas, W. Stinger, Elcon

{"title":"Analysis of stray current, track-to-earth potentials and substation negative grounding in DC traction electrification system","authors":"Kinh D. Pham, E. P., Ralph, Thomas, W. Stinger, Elcon","doi":"10.1109/RRCON.2001.921758","DOIUrl":"https://doi.org/10.1109/RRCON.2001.921758","url":null,"abstract":"In the first part of the paper, we look at a stray current model under the ideal conditions with uniformly distributed track-to-earth resistances and develop the track-to-earth potentials and stray current relationships within a segment of track. We then expand the model to include buried metallic structures in the vicinity of the track using field theory to calculate the potential gradients generated due to flow of rail current and show that a potential difference experienced by a crossing or paralleling underground structure that traverses these gradients could cause stray current corrosion. We discuss the limitations of these models with the actual conditions such as nonuniform back-to-earth resistances, nonuniform soil resistivities. In the second part, we look at the stray current model when there are inadvertent breakdowns in the track insulation. The points of rail insulation breakdown may be approximated using the spherical ground electrode model and equipotential lines to illustrate the flow of stray current. Common grounding of the substation negative bus, substation AC ground mat and electric utility neutral are examined and discussed.","PeriodicalId":174709,"journal":{"name":"Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126287668","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}

引用次数: 44

Dynamic modeling and simulation of three-piece freight vehicle suspensions with nonlinear frictional behaviour using Adams/Rail 基于Adams/Rail的三件套货车悬架非线性摩擦动力学建模与仿真

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-19 DOI: 10.1109/RRCON.2001.921761

R. F. Harder

{"title":"Dynamic modeling and simulation of three-piece freight vehicle suspensions with nonlinear frictional behaviour using Adams/Rail","authors":"R. F. Harder","doi":"10.1109/RRCON.2001.921761","DOIUrl":"https://doi.org/10.1109/RRCON.2001.921761","url":null,"abstract":"At present there are approximately 2.5 million three-piece bogies operating under North American freight vehicles. Although US bogie manufacturers offer a variety of designs to vehicle builders, central to all of these bogie designs are the nonlinear frictional characteristics inherent in the bogie suspension. These characteristics derive from the dynamic behaviour of the friction wedges. Friction wedges are small triangular metal elements that are held into position via spring loading, and function as the primary mechanism for vibrational energy dissipation between the bolster and side frame. Therefore, as a prerequisite to obtaining a realistic dynamic model of a typical three-piece bogie, an accurate model of the load-sensitive behaviour of these dry friction devices is required. Using design specifications from US bogie manufacturers and experimental data from the open literature, a load-dependent friction wedge model was developed using the ADAMS/View environment. After this model was validated against theoretical benchmarks, it was imported into an ADAMS/Rail vehicle model of a typical North American three piece bogie. The results of model development for both the friction wedge and three-piece bogie are presented, as well as ADAMS/Rail simulation results of the bogie dynamics under a variety of operating conditions.","PeriodicalId":174709,"journal":{"name":"Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115114624","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}

引用次数: 19

Development of a next generation ATP system 下一代ATP系统的开发

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-17 DOI: 10.1109/RRCON.2001.921745

K. Sato, H. Arai

引用次数: 1

New electric high speed locomotives with three phase drive systems for the US market 面向美国市场的新型三相驱动电力高速机车

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-17 DOI: 10.1109/RRCON.2001.921751

L. Schwendt

引用次数: 1

Use of i-mode cellular phones for facility management system 使用i-mode手机进行设施管理系统

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-17 DOI: 10.1109/RRCON.2001.921757

M. Kikuchi, Y. Yagi, M. Miyashita, M. Tanaka

引用次数: 0

ZefTron's chameleon-a solution to the ECP problem of migration zeeftron的变色龙——ECP迁移问题的解决方案

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-17 DOI: 10.1109/RRCON.2001.921755

L. A. Mclean, J. S. Waldrop

引用次数: 0

High capacity integrated truck 大容量综合卡车

Proceedings of the 2001 IEEE/ASME Joint Railroad Conference (Cat. No.01CH37235) Pub Date : 2001-04-17 DOI: 10.1109/RRCON.2001.921762

F. McKeown, T. Pitchford, J.J. Steffen, R. Wronkiewicz

引用次数: 3