A DYNAMIC MODEL FOR LONGITUDINAL TRAIN ACTION

A mathematical model has been derived for the longitudinal behavior of a train both as a whole and car by car. This is done by considering the train as a mass-spring system. Forces on each vehicle are identified and quantified. Newtonian equations of motion are written to provide a system of simultaneous ordinary differential equation. These equations are linearized. They are uncoupled by modal synthesis technique. They are integrated by numerical technique to give time history of displacements and velocities of the vehicles. The results are compared with steel coil train test data and Cardwell Westinghouse impact test data. The computational time requirements of this method are also compared with those of direct integration technique.

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 42 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00188113
  • Record Type: Publication
  • Source Agency: Association of American Railroads Technical Center
  • Report/Paper Numbers: AAR Rpt R-297 Thesis
  • Files: TRIS
  • Created Date: Feb 27 1979 12:00AM