ANALYSIS OF A PLATFORM FOR MEASURING MOMENTS AND PRODUCTS OF INERTIA OF LARGE VEHICLES

A rigid platform symmetrically supported by four sloping cables is proposed for measuring the center-of-gravity coordinates and the moments and products of inertia of large vehicles such as buses, trucks, and trailers. In addition to a torsional degree-of-freedom, the system undergoes pitch and roll motions about axes through the system instantaneous center which lies directly below the center of the platform at the intersection of the cable lines-of-action under quiescent conditons. The natural frequencies and normal modes of the freely vibrating loaded platform are used as inputs to a linearized System Identification Algorithm for computing the inertia properties of the test vehicle. Hypothetical test data generated from the Free Vibration Analysis of a sample test configuration are used to evaluate the sensitivity of the System Identification Algorithm to inaccuracies in test data or to truncation errors in computation.

  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  USA  10016-5990
  • Authors:
    • Orne, D
    • Schmitz, T
  • Publication Date: 1976

Media Info

  • Features: References;
  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00153231
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: ASME Pap 76-Aut-9
  • Files: TRIS
  • Created Date: Oct 13 1977 12:00AM