RESPONSE OF AN AXIALLY COMPRESSED BEAM ON VISCOELASTIC FOUNDATION SUBJECTED TO A MOVING FORCE

The mathematical model for the investigation is made up of a continuous axially compressed beam and a continuous two-stage foundation, the first with linear elasticity and the second consisting of a spring stiffness parallel to a dashpot with a damping coefficient. It is analysed by using Fourier transforms. The author uses the formula for the critical velocity of the load, compares the beam deflections with those taken from the different models devised by Kerr, Kenney, Achenbach, and discusses the results on the basis of the system's parameters and the data obtained.

• Corporate Authors:

  Planning Transport Associates, Incorporated

  P.O. Box 4824, Duke Station
  Durham, NC  United States  27706
• Authors:
  • Rao, D K
• Publication Date: 1976-3

Media Info

• Features: Figures; References;
• Pagination: p. 85-97
• Serial:
  • High Speed Ground Transportation Journal
  • Volume: 10
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Dynamic tests; Mathematical models; Railroad tracks; Stability (Mechanics); Subgrade (Pavements); Train track dynamics
• Uncontrolled Terms: Dynamic analysis; Track stability
• Old TRIS Terms: Track response investigations
• Subject Areas: Pavements; Railroads;

Filing Info

• Accession Number: 00142280
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Dec 15 1976 12:00AM