Archives of Acoustics, 32, 4(S), pp. 221-226, 2007

Acoustic field in the mechanical workshop

Janusz Piechowicz
AGH University of Science and Technology, Department of Mechanics and Vibroacoustics, Al. Mickiewicza 30, 30-059 Kraków

Either wave methods or geometric ones are used to describe an acoustic field in industrial
halls. The acoustic field distribution in such halls is not uniform, thus the assumption of field
diffusivity applied in an acoustics of interiors is often not fulfilled. The room forms amplitude
and phase characteristics of the signal, introducing additionally effects related to space
development, which are decisive for the acoustic pattern in the observation point. The paper
presents an analysis of an acoustic field inside an industrial room, when one machine of
not large dimensions is operating. The geometric model of the workshop was implemented
and Raynoise software was used to determine the distribution of the sound level for selected
frequencies. The measurement results and computer simulations related to the acoustic field
distribution are given.
Keywords: industrial noise, acoustic field.
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