Simulation and analysis of a biodynamic human model subjected to low accelerations—A correlation study

A simulation of responses of a biodynamic human model subjected to pure sinusoidal vertical vibrations is presented. The procedures used in the analysis are based on a computer automated approach developed by Amirouche for the study of multi-body system dynamics. A three-dimensional computer program called HBVA (human body vibration analysis) was developed and its corresponding algorithm is presented. The motion of the upper part of the human model is investigated in the sagittal plane for axial and rotary accelerations, including correlation studies with experimental findings by Panjabi et al. [1], Pradko et al. [2], Sandover [3], Coermann [4], and Griffin et al. [5]. The root mean square values were used to determine the transfer functions for each segment of the upper body of the model in the frequency domain. Based upon our results the biodynamic model used in the analysis is found to be exceptionally useful in determining the responses of each segment, and the magnitudes of the linear joint forces when the human body is subjected to low accelerations.