Proceedings of the 1996 ASME/IEEE Joint Railroad Conference最新文献

Synchronisation of cyclic coset codes for railway track circuit data 铁路轨道电路数据循环余集码的同步

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507972

M. J. Collins, J.D. Martin

引用次数: 2

Electromagnetic compatibility for communications based signaling systems 基于通信的信号系统的电磁兼容性

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507980

J. Lovegrove

引用次数: 0

Benefits of a low frequency, low voltage railway electrification system 低频、低压铁路电气化系统的好处

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507977

B. Bhargava

引用次数: 8

The effect of locomotive radial steering bogies on wheel and rail wear 机车径向转向转向架对轮轨磨损的影响

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507964

C. Swenson, R. Scott

{"title":"The effect of locomotive radial steering bogies on wheel and rail wear","authors":"C. Swenson, R. Scott","doi":"10.1109/RRCON.1996.507964","DOIUrl":"https://doi.org/10.1109/RRCON.1996.507964","url":null,"abstract":"Since Electro-Motive Division's (EMD) 3-axle radial steering bogie for heavy haul freight locomotives was introduced in production in 1993, over 70 million miles of service have already been accumulated on this new design. By the end of 1996, over 800 AC and DC traction locomotives with this new bogie technology will have been put into service. Wheel wear data, which is relatively straightforward to obtain, is showing that wheel flange wear has been virtually eliminated and that wheel tread wear has not increased in spite of dramatic increases in adhesion to 45% for starting heavy trains and to 35% and higher for train operation. Wheel wear data indicates that wheel life will likely double, even in operations where wheels are re-profiled for tread wear. This is due to the profound effect of low flange wear on minimizing metal removed in wheel truing. The wheel wear results also suggest changes to traditional railroad wheel truing policies. The effect of the radial bogie design on rail wear savings is more difficult to assess, and this paper discusses several rail wear considerations. Laboratory tests have provided considerable insight into the influence of wheel-rail angle of attack on wheel and rail wear. An approach is suggested for combining the available field and lab data with a cost model to project the life cycle cost savings for rail wear as well as wheel wear improvements.","PeriodicalId":293519,"journal":{"name":"Proceedings of the 1996 ASME/IEEE Joint Railroad Conference","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114688810","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: 10

Buff load and crashworthiness requirements for the NJ TRANSIT low-floor light rail vehicle 提高NJ TRANSIT低地板轻轨车辆的负载和耐撞性要求

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507954

S. Canjea, C. Thornes

引用次数: 1

Sound and vibration of railroad wheel 铁路车轮的声音与振动

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507962

H. Sakamoto, K. Hirakawa, Y. Toya

引用次数: 2

Newark City Subway traction power system upgrade 纽瓦克市地铁牵引动力系统升级

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507978

T. Kneschke, J. Hong, J. Arriojas

引用次数: 1

Performance of AC diesel-electric locomotives in typical Australian tasks 交流柴电机车在澳大利亚典型任务中的表现

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507957

I. Milroy, R. A. Johnson, P. Gaertner

引用次数: 3

Another look at the single wheel derailment criteria 再看一下单轮脱轨的标准

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507955

J. Rismantab-Sany

{"title":"Another look at the single wheel derailment criteria","authors":"J. Rismantab-Sany","doi":"10.1109/RRCON.1996.507955","DOIUrl":"https://doi.org/10.1109/RRCON.1996.507955","url":null,"abstract":"The friction force in the plane of contact, between the wheel flange of a rail vehicle and the rail, reaches its Coulomb's limit only when the direction of sliding coincides with the net resultant tangential force in this plane. Therefore, for derivation of any derailment criterion, it becomes necessary to embed the inequality that relates the friction force to the normal contact force and coefficient of friction into the equations of action and reaction equilibrium between the two contacting surfaces at the point of contact. Assuming a quasi static state, it is natural to ignore all the detailed and microscopic considerations such as whether the lateral creep is due to spin or lateral velocity or both etc.. However, by ignoring the spin moment, the method remains general and it recognizes that there are lateral and longitudinal creep forces which are due to longitudinal, lateral, and spin creepages. The main consideration is based upon balancing the action and reaction between the two contacting surfaces at the point of flange contact. It is further assumed that the effect of wheel yaw in the contact angle is negligible. This can be proved by geometrical considerations. The mathematical solutions show why Nadal's limit (Nadal, 1896) is the most conservative derailment criterion. They also provide the ranges of L/V for which the wheel has potential to climb or slide up the rail. The solutions also reveal why, at times, the wheel withstands a much higher L/V ratio than Nadal's limit without derailing.","PeriodicalId":293519,"journal":{"name":"Proceedings of the 1996 ASME/IEEE Joint Railroad Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132743570","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: 13

Evolution of a systems plan for advanced communications within a rapid transit system 快速交通系统中先进通信系统计划的演变

Proceedings of the 1996 ASME/IEEE Joint Railroad Conference Pub Date : 1996-04-30 DOI: 10.1109/RRCON.1996.507981

H. Nitz, T. Chung

{"title":"Evolution of a systems plan for advanced communications within a rapid transit system","authors":"H. Nitz, T. Chung","doi":"10.1109/RRCON.1996.507981","DOIUrl":"https://doi.org/10.1109/RRCON.1996.507981","url":null,"abstract":"The Chicago Transit Authority (CTA) is embarking on a number of programs to introduce advanced technologies throughout their 100+ year old system. A combination of rehabilitation projects, new construction projects, operational improvements, and public/private partnerships will be the key to achieving the goal of advanced system-wide communications and ultimately may form the basis for a system-wide Intelligent Transportation Systems (ITS). A system-wide fiber optic communications backbone was designed to facilitate all voice, data, and video communications within the CTA. The backbone design was based upon a SONET self-healing ring configuration, with redundant hardware and cabling to prevent a single contingency failure anywhere in the system. Although each transit line would be set up as a unique ring, a common area geographical loop was identified for the primary network ring. This common backbone loop (CBL), routed along various subway, at-grade, and elevated lines, was designed for a dual cable, self-healing SONET OC-12 architecture. The dual OC-12 rings interfaced major nodes with two independent switching points to facilitate disaster recovery. The CBL was designed to allow for ease of expansion as additional lines were implemented. Each line used an OC-3 dual ring self-healing architecture. These rings were routed to two separate OC-12 nodes for network integration on the CBL instead of routing a series of nonnetworked rings back to the control center. This paper describes the original backbone design and the evolution of that design as current and future projects are implemented within the CTA.","PeriodicalId":293519,"journal":{"name":"Proceedings of the 1996 ASME/IEEE Joint Railroad Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125948930","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: 1