Abstract

The well being of people needs to be a priority in the modern world. In that respect, vibration cannot be one more cause of stress. Besides that, vibration comfort is very important, since high levels may cause health or even tasks' accomplishment problems. Several parameters may influence the levels of vibration a human being supports. Among them, one can mention the influence of gender, age, corporeal mass index (CMI), temperature, humor, anxiety, hearing, posture, vision, etc. The first three parameters mentioned were already investigated in previous studies undertaken by GRAVI (Group of Acoustics and Vibration) researchers. In this paper, the influence of vision is evaluated. The main objective with this series of tests performed is to try to quantify in a future the influence of each parameter in a global vibration comfort level. Conclusions are presented for the parameter investigated.

Highlights

  • Problems related to vibration stimulus are very frequent in people’s life nowadays

  • The present paper evaluates the influence of vision in a more detailed way using the same type of study applied to the previous parameters to verify its influence on the whole-body human vibration comfort levels

  • This work evaluated the influence of the parameter vision in the vibration perception threshold and maximum acceptable vibration limit of subjects when exposed to some vibration at constructions, such as those using metallic structure

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Summary

Introduction

Problems related to vibration stimulus are very frequent in people’s life nowadays. Those stimuli may damage health or even disturb the activities that people perform. As mentioned in [5], most standards do not even mention which variables are known to have a large influence on response They do not provide the necessary information to effectively reduce the vibration effects. The familiarity to everyday vibration due to bad roads, bad transportation vehicles, the influence of climate and humor, may affect differently the results obtained for the Brazilian community, since these factors may have an influence on the levels obtained and are generally different from the communities were the standard results were obtained

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