DYNAMIC ANALYSIS OF LONG-TRAVEL, HIGH-EFFICIENCY SHOCK ABSORBERS IN FREIGHT CARS

A dynamic analysis is presented relating the principle design parameters of a constant force type, dissipative shock absorber to the forces experienced by a resilient lading. The analysis, which correlates the effects of coupler force, lading force, cushion travel, closure time, impact speed, and friction, represents an application of classical mechanics to a dynamical system with sliding friction (Coulomb damping). Although a lumped-parameter analysis forms the basis of the derivation, a procedure is described which takes into account the mass-and compliance distribution within the lading.

• Supplemental Notes:
  • This paper appeared in Anthology of Rail Vehicle Dynamics, Volume 1: Freight Car Impact. The anthology was sponsored by the Rail Transportation Division. ASME. Presented at the ASME-IEEE Joint Railroad Conference, Philadelphia, Pa., April 7-8, 1970.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Freudenstein, Federik
• Conference:
  • This paper appeared in Anthology of Rail Vehicle Dynamics, Volume 1: Freight Car Impact. The anthology was sponsored by the Rail Transportation Division. ASME. Presented at the ASME-IEEE Joint Railroad Conference, Philadelphia, Pa., April 7-8, 1970.
• Publication Date: 1971

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 153-161

Subject/Index Terms

• TRT Terms: Cushioning materials; Freight cars; Impacts; Loss and damage; Train track dynamics
• Old TRIS Terms: Cushioning; Lading protection
• Subject Areas: Materials; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00047450
• Record Type: Publication
• Report/Paper Numbers: 70-RR-1 Paper
• Files: TRIS
• Created Date: Nov 14 1976 12:00AM