Transmissibility Evaluation of Whole-Body Vibration Using Three-Layer Human CAD Model

The aim of present study is to evaluate the effect of whole-body vibration on various human body segments. A three-layer 3D CAD model has been modelled according to Indian human male anthropometric data with three different layers for defining the properties of human bone, skin and muscles, respectively. Human model has been excited at RMS value of 0.5, 1.0 and 1.5 m/s 2 in a frequency range from 0 to 20 Hz. Human subject has been considered to be in sitting posture while driving a tractor. The effect in terms of seat to head and feet to head transmissibility has been evaluated. It has been found that 4–6 Hz frequency range is dominating in both evaluations with maximum effect on head.