Dynamic reaction of a human on vibrations by analysis of a single-dimensional biomechanical model

The article presents the concepts of the assessment of harmfulness of vibrations generatedfrom various sources. Domestic and foreign standard procedures were discussed, including ISOproposals. It has been pointed out that all procedures can be considered as indirect ones, that they referto vibrations affecting humans, and not those resulting from the dynamic response induced in individualhuman organs. The same applies to the criteria for determining the loss of life in communicationcollisions. It was pointed out that in the literature we find attempts of a direct approach, the essenceof which is to study the dynamic reaction of individual human organs inscribed in the one or twodimensionalmodel. The results of own tests of a person subjected to intensive oscillatory procedureswere presented in order to identify the stiffness model proposed to assess the harmfulness of industrialtype vibrations. It has been shown that two-dimensional models can be suitable here.Keywords: harmful effect of vibrations, human biomechanical models, one-dimensional model C.M.Harris, model identification, differential solution.