CALCULATION ON DYNAMIC PERFORMANCE OF HYDRAULIC CUSHION UNDERFRAME (REPORT 1)

The car structure with a movable through-member which connects the draft gears at the car ends-the cushion underframe--is considered for the case when a hydraulic shock absorber acts against the relative motion between the through-member and the car body. The impact motion between a conventional car and the car with a cushion underframe is solved in order to give a practical method to determine suitable dimensions of elements and also to predict the motion under any initial conditions. For the calculation, use of electronic computer is considered. Numerical examples show the favourable performance of the system, giving the coupler forces within the limit of car-end strength even for a very high impact speed, say 20 kn/h, of the cars. The method described in this article has been successfully applied for the designing marine-container cars. The test results are quite favourable.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• Corporate Authors:

  JAPANESE NATIONAL RAILWAYS

  TOKYO,   Japan 

  Maritime Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Matsui, S
  • Suzuki, S
• Publication Date: 1968-3

Media Info

• Pagination: p. 25-32
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 9
  • Issue Number: 1
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Couplers; Crashes; Cushioning materials; Freight cars; Gears; Railroad cars; Technology; Vehicle design; Vehicle dynamics
• Uncontrolled Terms: Draft gears
• Geographic Terms: Japan
• Old TRIS Terms: Car impact; Cushioning
• Subject Areas: Design; Railroads;

Filing Info

• Accession Number: 00033177
• Record Type: Publication
• Report/Paper Numbers: Quart Rpt
• Files: TRIS, USDOT
• Created Date: Jun 16 1976 12:00AM