0
RESEARCH PAPERS

Regenerative Drive for Subway Trains—Part 1: Mechanical Accumulator Design

[+] Author and Article Information
R. C. Flanagan, L. A. Suokas

Department of Mechanical Engineering, University of Toronto, Toronto, Canada

J. Eng. Ind 98(3), 737-743 (Aug 01, 1976) (7 pages) doi:10.1115/1.3439020 History: Received January 21, 1976; Online July 15, 2010

Abstract

A regenerative drive system for subway trains is mathematically modeled and numerically evaluated for the Toronto Bloor-Danforth Subway Line. The scope of the study dictates a multipaper presentation of system and component modeling. This first paper designs and optimizes the mechanical accumulator subsystem (bearings, seals, losses) of the vehicle propulsion package. Preliminary design criteria (stress-energy relationships) predict the required performance capability of the one and two accumulator per vehicle systems; the need for high energy densities is of secondary importance compared to the required power density for vehicle operation. Accumulator performance tests suggest ease of integration with the current drive system. Subsequent papers model the external and internal drive systems, and numerically optimize the flywheel control concept and accumulator size; day savings, on a round-trip basis, are predicted in the order of 26 percent.

Copyright © 1976 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In