This thesis is focused on the differences between biodynamic responses of human fingers and the impact of the push force on single finger biodynamic response. The biodynamic response functions were gathered experimentaly with a predeveloped measuring device which enabled us to measure the biodynamic responses of an individual finger. The measuring device was attached to an electrodynamic shaker and simulated vibration excitation, which is normally a consequence of hand operated machinery use. We chose the apparent mass as a biodynamic response function as it emphasises the difference in responses at lower excitation frequency area. Vibration in the mentioned area is crucial for potential development of chronical disease and injury (e.g. white finger syndrome). The results show essential differences between responses of individual fingers and the quantity of vibration transmitted to other parts of the hand. Furthermore, we concluded that the increase in the push force enlarges the vibration transmissivity to other parts of the hand, hence the apparent mass increases. The results enable better understanding of finger dynamic response under exposure of vibration excitation and offer the basis for further research in minimizing the risk of developing chonical finger disease.
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