Proceedings of IEEE/ASME Joint Railroad Conference最新文献_第2页

AC propulsion: the future for North American traction 交流推进:北美牵引力的未来

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289020

R. Bowie

引用次数: 1

Wireless advanced automatic train control 无线先进自动列车控制

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289024

E. Nishinaga, J. A. Evans, G. Mayhew

引用次数: 19

DC railway power network solutions by diakoptics diakoptics的直流铁路电网解决方案

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289015

C. Goodman, L. K. Sin

引用次数: 32

Load flow study and conceptual system design of SEPTA's regional rail division traction power system SEPTA区域轨道分区牵引电力系统的潮流研究与概念系统设计

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289017

T. Kneschke, J.P. Hong, W. Naqvi

{"title":"Load flow study and conceptual system design of SEPTA's regional rail division traction power system","authors":"T. Kneschke, J.P. Hong, W. Naqvi","doi":"10.1109/RRCON.1994.289017","DOIUrl":"https://doi.org/10.1109/RRCON.1994.289017","url":null,"abstract":"The purpose of this study was to develop a configuration of the modernized traction power supply system formerly owned by the Reading Railroad and recommend the most appropriate method for implementation of the proposed system. Load flow studies were performed to evaluate the system performance taking into account projected traffic density. Based on these studies, conceptual system design was performed which included development of procurement specifications for modern switchgear to be used in Wayne Junction and all autotransformer substations. In order to help realize the system modernization, an implementation plan spanning 12 years has been prepared. The plan identified issues to be resolved so that system modernization may proceed and included criteria for executing the system upgrade. Based on those criteria it was concluded that the system modernization should be performed with the following priorities: (1) the Wayne Junction substation modernization should be completed as soon as possible; (2) all existing autotransformer substations should be replaced; and (3) design and installation of additional static frequency converters will be required as the traffic approaches the projected density and the planned electrification extensions are realized. In order to help SEPTA with planning of the modernization program, budgetary construction costs for the new facilities were estimated. Combining the cost estimates and the 12-year implementation schedule, cash flow analyses were developed for present dollars and for dollars escalated to mid-point of construction of each facility.<<ETX>>","PeriodicalId":145407,"journal":{"name":"Proceedings of IEEE/ASME Joint Railroad Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131063468","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: 4

Introduction to flange bearing crossing frogs /spl lsqb/railways/spl rsqb/ 法兰轴承交叉蛙/spl lsqb/铁路/spl rsqb/简介

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289029

J. Gregory, J. Palmer

引用次数: 0

Accurate track modelling for fault current studies on third-rail metro railways 地铁三轨故障电流研究的精确轨道建模

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289016

M. Fracchia, R. Hill, P. Pozzobon, G. Sciutto

引用次数: 13

Recent developments in European high speed rail 欧洲高速铁路的最新发展

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289028

A. B. Hazell

引用次数: 2

Wheel thermal damage limits 车轮热损伤极限

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289021

D. Stone, G. F. Carpenter

引用次数: 11

Does a critical speed for railroad vehicles exist? 铁路车辆是否存在临界速度?

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289013

Hans True

{"title":"Does a critical speed for railroad vehicles exist?","authors":"Hans True","doi":"10.1109/RRCON.1994.289013","DOIUrl":"https://doi.org/10.1109/RRCON.1994.289013","url":null,"abstract":"The author discusses the definition and existence of a critical speed for the onset of hunting of railroad vehicles. First the field test situation is described. It is argued that the important problem is the determination of the forces and accelerations in the vehicle and the rails, which may be large even when the vehicle does not hunt. Next the author discusses the relevance of the critical speed in railway engineering. It is desirable to know the speed below which a vehicle will not hunt, since hunting is always connected with large wheel-rail forces. Next the modelling of railroad vehicles is discussed and the nonlinear aspects are emphasized. The author explains why it is necessary to reformulate the mathematical problem for calculation of the critical speed due to the nonlinear character of the modelling. It is suggested that another critical speed be defined for a railroad vehicle. It can be calculated without great effort using a well functioning simulation program. It yields a \"global\" criterion for the onset of hunting, in contrast to the linear stability criterion, which is still commonly used. The linear eigenvalue problem yields a bifurcation point, which in general will not be the lowest parameter value for existence of oscillating solutions in a nonlinear dynamical system. The author suggests the use of a \"nonlinear critical speed\" as an acceptance criterion for railroad vehicles.<<ETX>>","PeriodicalId":145407,"journal":{"name":"Proceedings of IEEE/ASME Joint Railroad Conference","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116388430","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: 45

Engineering tests performed on the X2000 and ICE high speed trainsets 在X2000和ICE高速列车上进行了工程测试

Proceedings of IEEE/ASME Joint Railroad Conference Pub Date : 1994-03-22 DOI: 10.1109/RRCON.1994.289027

E.J. Lombardi

引用次数: 5