ANALYTICAL AND EXPERIMENTAL STUDY OF AUTOMOBILE DYNAMICS WITH RANDOM ROADWAY INPUTS

This paper presents the results of an analytical and experimental study of ride vibrations in an automobile over roads of various degrees of roughness. Roadway roughness inputs were measured. Three different linear mathematical models were employed to predict the acceleration response of the vehicle body. The models used included two, four, and seven degrees of freedom, primarily for vertical direction motion. The results show that the prime source of errors in predicting response of this type lies in the common assumptions made for roadway roughness spectra. With adequate description of the roadway inputs, the results showed that the seven degree of freedom model accurately predicted the low frequency response (up to 10 Hz).

  • Corporate Authors:

    American Society of Mechanical Engineers

    345 East 47th Street, United Engineering Center
    New York, NY  United States  10017
  • Authors:
    • Healey, A J
    • Nathman, E
    • SMITH, C C
  • Publication Date: 1977-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00176585
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Series G
  • Files: TRIS
  • Created Date: Jul 29 1978 12:00AM