AN ELECTRICAL ANALOGUE SIMULATION OF THE VERTICAL DIRECTION OF VIBRATION IN RAILWAY VEHICLES

This simulation of the elastic mechanical transmission channel of low-frequency vibrations up to about 16 c/s is based on the well-known Firestone analogy. The model representation of a rail vehicle as a spatially distributed point-mass arrangement with concentrated springs and dampers holds good, at the least in practice, for the forced-vibration mechanism of the vertical direction. Between the model amplitudes and those of real processes, correlation coefficients of 0.85 to 0.95 were attained above the bogies, which however, only gained 0.65 to 0.80 for the centre of the vehicle because proper deflection-vibration values are higher and cannot be determined by a concentrated point-mass system. With increasing frequency the point-mass structures lose in sharpness of representation. By the installation described, the floor acceleration can currently be recorded as time functions from axle-bearing accelerations measured.

• Corporate Authors:

  VEB Autobahnbaukombinat

  Templinestrasse 19
  Potsdam,   Germany 
• Authors:
  • Weishaupt, S
• Publication Date: 1977-2

Language

• German

Media Info

• Pagination: p. 64-67
• Serial:
  • DET Eisenbahntechnik
  • Volume: 25
  • Issue Number: 2
  • Publisher: VEB Autobahnbaukombinat

Subject/Index Terms

• TRT Terms: Dynamics; Ride quality; Simulation; Vehicle design; Vibration
• Uncontrolled Terms: Vertical dynamics
• Old TRIS Terms: Car design
• Subject Areas: Design; Railroads;

Filing Info

• Accession Number: 00153390
• Record Type: Publication
• Source Agency: British Railways
• Files: TRIS
• Created Date: Jun 17 1977 12:00AM