Other Reports

Northeast Corridor Improvement Project Electrifiction Systems Pantography Optimization: Phase I - Optimization by the Use of Computer Simulation

  • 01
  • Mar
  • 1980
AUTHOR: Electrack Incorporated
SUBJECT: Evaluation
KEYWORDS: Computer Program, High Speed Ground Transportation, Catenary System Plan
ABSTRACT: The Catenary System Plan includes proposals to modify the style 1 catenary to allow trains to travel at 120 mph between Washington and New York. The modifications were chosen on the basis of computer simulations of the dynamic performance of a conventional production pantograph (the Faiveley AM18), an experimental lightweight pantograph, and a Faiveley two-stage pantograph, each operating in the Metroliner I configuration of three pantographs spaced at 170-foot intervals. Computer simulations have been made of the behavior at other pantograph spacings and of alternative types of pantographs. Existing Northeast Corridor pantographs, the AM25 and the BS134, are shown to give unacceptable performance in many conditions, particularly at the extreme low and high conductor temperatures, and are unsuitable for 120 mph trains. The AMI8 pantograph operates badly at some of the alternative spacings. Modern lightweight pantographs and the Faiveley two-stage pantograph give generally better performance in all conditions. It is recommended that samples of a single-stage pantograph with a light head and a light frame and a two-stage pantograph with a light head be obtained and tested for performance on high-speed trains as phase II of the pantograph optimization program. A list of recommended values of the dynamic parameters is given. Simulations have been made on the performance of style 5 catenary designed for high speeds between New Haven and Boston. The pantograph selected for use on modified style 1 catenary will give good current collection from style 5 catenary at speeds up to 150 mph.
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