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# Proceedings of the 1991 IEEE/ASME Joint Railroad Conference

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Displaying Results 1 - 20 of 20
• ### Proceedings of the 1991 IEEE/ASME Joint Railroad Conference (Cat. No.91CH3004-9)

Publication Year: 1991
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• ### FEM applied to railroad track electrical impedance and adjacent track crosstalk modelling

Publication Year: 1991, Page(s):87 - 95
Cited by:  Papers (2)
| | PDF (692 KB)

In a multiple-track railroad, the conductors form mutually coupled ground return circuits. Accurate electrical circuit analysis, required for signaling, traction, and electromagnetic compatibility analysis, is difficult to achieve because of the variability in the equivalent electrical components from their material properties and environmental conditions. An application of the finite-element meth... View full abstract»

• ### Progress report evaluation of truck designs using NUCARS

Publication Year: 1991, Page(s):27 - 35
| | PDF (488 KB)

The Association of American Railroads (AAR) Mechanical Division Specification M-1001 Chapter XI describes the test and analysis requirements for approval of new and untried types of freight cars. A methodology for developing and evaluating the requisite analyses is described. The AAR vehicle dynamics program, NUCARS, is utilized as the primary analysis tool, while other software packages are used ... View full abstract»

• ### Network management for ATCS communications systems

Publication Year: 1991, Page(s):71 - 77
Cited by:  Patents (1)
| | PDF (588 KB)

Network management includes the functions necessary to plan, implement, operate, and maintain a network. Advanced train control system (ATCS) specifications define how the communication network is to operate, but network management is left to the discretion of individual railroads and suppliers. Network management functions needed to support ATCS are described. Network management for ATCS consists... View full abstract»

• ### Reduced life-cycle cost through RMSH

Publication Year: 1991, Page(s):23 - 25
| | PDF (172 KB)

After a railroad buys a fleet of vehicles, it often spends an equal amount or more on maintenance during the life of the fleet. Some of that expense could be avoided, in particular, the loss of revenue while the vehicle is undergoing repairs for random failures. A sample mainline electric locomotive is described, and it is shown what funds can be saved if the vehicle carries on board one or two sp... View full abstract»

• ### Technology tools solve technology training problems

Publication Year: 1991, Page(s):67 - 69
| | PDF (348 KB)

The criteria for selecting and implementing a training project in the maintenance and operations areas of rail transportation are explained. The decision-making required in applying available technologies for interactive training, expert systems, graphics animations, simulations of varying degrees of complexity, and databases is discussed. Demonstrations of the technology used in light rail operat... View full abstract»

• ### High productivity integral train-Phase I testing of New York Air Brake Company Iron Highway'

Publication Year: 1991, Page(s):13 - 21
| | PDF (604 KB)

The high-productivity integral train (HPIT) project was initiated in April, 1984, and the New York Air Brake (NYAB) Company proposed an intermodal train concept called Iron Highway. The concept consists of a 1000 ft continuous platform (element) supported by single axle trucks every 28 ft at an articulated joint. A control and power unit provides power at each end of an element to the first five a... View full abstract»

• ### A new simulation method and its application to knowledge-based systems for railway scheduling

Publication Year: 1991, Page(s):59 - 66
Cited by:  Patents (5)
| | PDF (628 KB)

A simulation method is proposed to emulate human experts' simulating processes of train movements on a computer. Computer simulation is one of the possible tools applicable for design, planning, scheduling, and control of rail and transit systems. Although conventional simulation has been successfully applied to systems design and facility planning, scheduling, and online rescheduling still depend... View full abstract»

• ### 3-phase asynchronous motors for traction drives on BR

Publication Year: 1991, Page(s):139 - 145
Cited by:  Papers (1)
| | PDF (628 KB)

The simplicity and robustness of the three-phase asynchronous motor make it attractive for traction applications. Attempts to use it go back to the turn of the century. It was, however, the appearance of the microprocessor and high-power GTO that made the three-phase package attractive for general applications. British Rail is taking advantage of the benefits of these drives, and the potential pro... View full abstract»

• ### Computer simulation of rail transit vehicle systems-method and advantages

Publication Year: 1991, Page(s):9 - 11
Cited by:  Papers (1)
| | PDF (216 KB)

Entire rail transit vehicles and subsystems, including propulsion, control, auxiliary electric, doors, communications, air comfort, truck and suspension, friction brakes, car body, coupler, and carborne automatic train control (ATC) equipment, can be modeled using proven simulation programs such as PSPICE and SABER. Such a model is presented to show how accurately and easily systems can be simulat... View full abstract»

• ### Design assessment and implementation potential of three-phase asynchronous AC traction motor systems for North America

Publication Year: 1991, Page(s):151 - 159
Cited by:  Papers (1)
| | PDF (876 KB)

AC traction system technology is discussed in light of the issues of design maturity, current state of the art, adaptability to the North American freight railroad environment, and its introduction into North America. A description of what a North-American AC traction system locomotive might look like is given. Descriptions of European and North-American AC traction system equipped locomotives are... View full abstract»

• ### Hardening of control centers-the case for' and issues to be considered

Publication Year: 1991, Page(s):53 - 57
| | PDF (420 KB)

The availability of high-speed code systems and computer-aided systems equipped with appropriate indications and control interfaces with operating personnel has made it possible to concentrate large areas of railroad territory at single sites, thus gaining efficiencies in the movement of trains as well as utilization of the right of way. Being able to recognize the risks involved and provide for l... View full abstract»

• ### A high-performance, controlled cycloconverter for traction power application

Publication Year: 1991, Page(s):133 - 137
Cited by:  Papers (1)
| | PDF (384 KB)

The application and performance of a cycloconverter-type frequency converter as applied to traction (railroad) power loads are discussed. The following items are detailed: the basic theory and operation of a cycloconverter and traction power, ratings to meet performance requirements for traction application, efficiency and power factors, harmonic analysis, and a summation, including the advantages... View full abstract»

• ### Transit system third rail de-icing by radio frequency induction

Publication Year: 1991, Page(s):97 - 101
| | PDF (392 KB)

Radio frequency induction is investigated as a method to debond ice from high permeability magnetic steels. The application of interest for this work is the deicing of a transit system's third rail. The objective is a system which will keep third-rail systems operational during severe winter snow and icing conditions. The basic operating scheme is that of passing a RF induction coil over a section... View full abstract»

• ### A design for next generation load measuring wheel sets

Publication Year: 1991, Page(s):37 - 42
Cited by:  Papers (1)  |  Patents (6)
| | PDF (472 KB)

The design of a strain-gaged railroad wheel set with significantly improved accuracy is described. The design provides a continuous measurement of the vertical, lateral, and longitudinal forces at the wheel-rail interface, in addition to the position of the point of contact of the rail on the wheel. A finite-element analysis is used to optimize gage placement and to simulate the output of the stra... View full abstract»

• ### Amtrak's next generation passenger locomotive

Publication Year: 1991, Page(s):147 - 150
Cited by:  Patents (1)
| | PDF (272 KB)

Amtrak's contract with General Electric for 52 locomotives represents a step forward in the quest for modern equipment with microprocessor controls, diagnostics, redundancy, and automatic data communications. The performance characteristics include higher horsepower, improved fuel efficiency, lower emissions, increased crew comfort, higher crash resistance, and larger fuel tanks, all within the sa... View full abstract»

• ### Jacksonville's Automated Skyway Express

Publication Year: 1991, Page(s):103 - 115
| | PDF (1124 KB)

On May 30, 1989, the Jacksonville (Florida) Transportation Authority (JTA) commenced operations of the Phase 1A, starter line of their Automated Skyway Express (ASE), an automated guideway transit system. The starter line, which consists of 0.7 miles of double track with three passenger stations, is the first segment of the Jacksonville 2.5 mile, nine passenger station, totally automated aerial sy... View full abstract»

• ### Advanced train control systems design and use

Publication Year: 1991, Page(s):43 - 51
Cited by:  Patents (1)
| | PDF (500 KB)

The advanced train control system (ATCS) is a closed-loop, distributed control and communication system using advanced computers and digital data communication. ATCS is the application of modern command, control and communications technology to a line constrained transportation system. To date, 19 form, fit, and function specifications have been written for the ATCS. The current effort is to clari... View full abstract»

• ### An analytic approach to the maintenance of high speed track

Publication Year: 1991, Page(s):117 - 123
| | PDF (628 KB)

A methodology for processing measurements of rail geometry to help assess the ability of the track to satisfy its present and future requirements is advanced. The emphasis is on Amtrak's passenger service in the Northeast Corridor. The technology described is amenable to other situations where guideway geometry-vehicle dynamic interactions are an issue, and where unsatisfactory responses of track ... View full abstract»

• ### BB 10003-prototype electric locomotive for the TMST

Publication Year: 1991, Page(s):125 - 132
Cited by:  Papers (2)  |  Patents (6)
| | PDF (720 KB)

The TransManche Super Train (TMST), due to enter passenger carrying service in 1993, will operate between the three capitals: London, Paris, and Brussels via the Channel Tunnel. In answer to the conflict between adopting latest technology or service-proved equipment for the TMST, an electrical prototype locomotive was commissioned. Thus the BB10003, an existing French railways locomotive was refit... View full abstract»