Studies on the Experimental Validation of the Theoretical Static Noise Field in the Neighbourhood of Agricultural Tractors

The article presents results on the measurement and modelling of the field of noise generated by agricultural tractors in aggregate with agricultural machines operated by human operators. The data required to construct the field level noise level in the vicinity of the tractors at work are obtained by measurement. The results, both the measured and the theoretical ones, are finally used to verify the compliance with the occupational safety standards, taking into account the specific activities carried out by the staff working on the trailed agricultural machines. The field of noise intensity level is also worthwhile in the design of agricultural machinery and in the estimation of the level of noise received by human personnel working on other equipment trailed by the tractor under consideration, other than those appearing in this article. Also, important references are made to the expression of the logarithmic term, which generally characterizes the variation of the noise intensity level based on the distance to the source.