STUDY ON HYDROSTATIC DRIVES FOR SMALL AGT VEHICLES

This report presents an analysis of hydrostatic drives applicable as propelling units for Automated Guideway Transit (AGT) small vehicles. The study includes a comprehensive state-of-the-art survey of hydrostatic drive units and the development, design, and performance requirements for a 15 HP hydrostatic drive propulsion system for an AGT system. The study included a series of testing on a 15 HP unitized hydrostatic unit to evaluate performance characteristics and acoustic noise. Acoustic noise of hydraulic equipment, especially the hydrostatic drive, has been studied and the findings reported herein. A series of tests were performed on the unitized 15 HP hydrostatic drive to simulate an AGT small vehicle duty cycle using a 20 and 29 GPM hydraulic motor. These tests were conducted on an eddy-current clutch dynameter, 35 HP capacity, and utilized specially designed and developed processor to produce the simulated duty cycle during the tests. In addition, noise level tests were performed on the unitized hydrostatic drive with the 20 and 29 GPM hydrostatic motor and applied with and without shield constructed as a box to dampen hydrostatic drive noise. Also, a trade-off analysis comparing the hydrostatic drive unit with the AC electric drive motor with eddy-current clutch/brake and DC electric motors for application as AGT vehicle propulsion system was done.

  • Corporate Authors:

    Mobility Systems and Equipment Company

    6151 West Century Boulevard, Suite 912
    Los Angeles, CA  USA  90045

    Urban Mass Transportation Administration

    Office of Tech Development & Deployment, 400 7th Street, SW
    Washington, DC  USA  20590
  • Authors:
    • Adams, G J
    • Hoover, L R
  • Publication Date: 1978-10

Media Info

  • Pagination: 121 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00199053
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: MSE-0277/1 Final Rpt., UMTA-CA-06-0089-78-1
  • Contract Numbers: DOT-UT-60043
  • Files: NTIS, TRIS, USDOT
  • Created Date: Nov 7 2003 12:00AM