Nonlinear Lumped Parameter Mathematical Model of Dynamic Response of the Human Body

Abstract

Two nonlinear models of man's dynamic response to low frequency vibration are discussed. The first model uses linear spring and damper elements but accounts for the nonlinear geometry of visceral mass motion. This model adequately reproduces both the input mechanical impedance and vibration transmission characteristics for a seated human subject. The second model includes the nonlinear effects of the lungs. The influence of this nonlinearity on the dynamic response is discussed and compared to experimental results from tests on animals.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0740462

Entities

People

  • Gordon R. Hopkins

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Abdomen
  • Amplitude
  • Anatomy
  • Dynamic Response
  • Dynamics
  • Frequency
  • Geometry
  • Human Body
  • Impedance
  • Mathematical Models
  • Measurement
  • Mechanical Impedance
  • Nonlinear Dynamics
  • Skeletal Muscle
  • Spine
  • Systems Biology
  • Torso

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Control Systems Engineering.