ON FREQUENCY-DEPENDENT DAMPING COEFFICIENTS IN LUMPED- PARAMETER MODELS OF HUMAN BEINGS

A three-degree-of-freedom model of the human body, which included both vertebral and visceral paths between the seat and head, was formulated and programmed for solution using the IBM Continuous System Modeling Program. The parameters representing spring stiffnesses and damping coefficients were varied until the body-to-seat or head-to-seat acceleration ratios converged to existing experimental data at corresponding input frequencies. The model exhibited linear behavior for input frequencies up to approximate 6 Hz and a possible transition region for input frequencies between 6 and 10 Hz. For input frequencies between 10 and 30 Hz, visceral damping was found to vary parabolically with input frequency.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00219290
• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Muksian, R
  • Nash Jr, C D
• Publication Date: 1976

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 339-342
• Serial:
  • Journal of Biomechanics
  • Volume: 9
  • Issue Number: 5
  • Publisher: Elsevier
  • ISSN: 0021-9290
  • Serial URL: https://www.sciencedirect.com/science/journal/00219290

Subject/Index Terms

• TRT Terms: Damping (Physics); Degrees of freedom; Human beings; Mathematical models; Seats; Vibration
• Uncontrolled Terms: Models
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00145094
• Record Type: Publication
• Source Agency: Highway Safety Research Institute
• Files: TRIS
• Created Date: Mar 30 1977 12:00AM