The determination of bolster-spring oscillation amplitudes, swing-link displacements, and their phasing using oscillographic instrumentation can be used for definite assessment of riding qualities. Vibrograph wedge tests permit determination of damping factors. The frequency of lateral/swaying oscillations can be determined by placing the vehicle on a transfer table and imparting an impulse by suddenly stopping the moving table. Similarly, body-nosing can be excited by placing the vehicle on a turntable, the center of gravity of the body being in line with the center of rotation. A sudden stop of the turntable will then excite body-nosing oscillations at their natural frequency. It should be stressed, however, that as far as vertical body oscillations are concerned wedge tests are not fully representative of road conditions.

  • Corporate Authors:

    Temple Press Limited

    161-166 Temple Press Limited
    London EC4,   England 
  • Authors:
    • KOFFMAN, J L
  • Publication Date: 1961-9-29

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 363-366
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00040084
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 4 1994 12:00AM