Molestias y satisfacción de usuario en función de la percepción de presiones y vibraciones durante el uso de máquinas herramienta.

Abstract

Comfort measurement is not a simple task, as multiple factors and aspects related with the subjective perception of users take part in such processes. To address it in an obective way, comfort associated with pressure and vibration is measured during the use of drilling machines. Thus, 60 users tested three different drill models, indicating the level of comfort felt and the number of discomfort locations perceived in the hands and in the rest of the body. Three binary logistic regression models are obtained from the recorded data, considering pressure and vibration related comfort as independent variables, and satisfaction with the experience of use, hand discomfort and discomfort in the rest of the body as dependent variables. The results show that satisfaction of use depends on pressure and vibration related comfort, and, lastly, that discomfort throughout the body is only related to pressure comfort. These models can be useful in improving the ergonomic design of machine tools from the conceptual design phase.