Limiting Forces on Transit Trucks in Steady-State Curving

Details

• Creators:
  Greif, R. ; Weinstock, Herbert
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Corporate Contributors:
  United States. Urban Mass Transportation Administration
• Subject/TRT Terms:
  • Car trucks (Railroads)
  • Curvature
  • Flanges
  • Force
  • Mathematical models
  • Rail (Railroads)
  • Rapid transit
  • Rapid transit cars
  • Rolling contact
  • Steering
  More +
• Publication/ Report Number:
  DOT-TSC-UMTA-81-69;UMTA-MA-06-0025-82-1
• DOI:
  https://doi.org/10.21949/1527014
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Interim report; Oct 1981-Sep 1981
• Corporate Publisher:
  United States. Urban Mass Transportation Administration
• Abstract:
  This study develops conservative bounds on wheel/rail forces and flange forces for several types of rigid and flexible trucks in steady-state curving conditions. The approximate analysis presented provides closed-form relations for estimating forces, truck angle of attack, creep force saturation and sliding conditions as a function of truck geometry and track parameters. The wheel profiles are modeled by conical wheel treads with vertical wheel flanges. Limiting case transit truck configurations are analyzed to provide comparison of the benefits achievable in curving performance from modification of truck geometry.
• Format:
  PDF
• Funding:
  MA-06-0025
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/11389/dot_11389_DS1.pdf
• File Type:
  [PDF - 1.31 MB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:ec3337485217beedc508d9569ad2055dc2c81404fe713b6e539bbffea003a39e