Hand Vibration Analysis due Impact Equipment

Resumo

Several human health problems can arise due to the loads transmission from impact equipment manipulated directly with the operator's hands. These issues can also extend to the upper limbs. Equipment such as stone breakers exhibit significant vibration levels during operation, and understanding how the intensity and duration of this vibration affect the efforts transmitted to the operator is necessary to assess potential mitigation during work. Therefore, this study aims to perform an operator's hand numerical model, using the finite element method, while operating the stone breaker, having as input data the vibration caused by the stone breaker. The objective is to determine the level of stress imposed and the resulting transmissibility on the worker's hands. In addition, to examining the changes in these values resulting from the positions modifications where the worker holds the equipment.