The Calculation of Sound Propagation in Rooms to determine Noise Exposure at Workplaces

摘要

Sound propagation in workrooms is generally calculated using the techniques described in VDI guideline 3760 /1/. The advantage of this procedure is a very quick modelling of even complex situations and the possibility to use exactly the emission data of machinery and other sources that are available according to the European Machine Directive. According to this VDI guideline rooms are simulated by box shapes, absorptions are used in the calculation as mean values averaged over each of the 6 surfaces and the calculation is based on the mirror image method according to the basic work of Kuttruff and Jovicic.