Abstract | Mathematical models for many acoustic absorbing methods have previously been developed, however there is very little accessible data describing how those models perform in a practical implementation of the design. This project describes the development of a novel slotted film sound absorber and presents the results at each design iteration. Initially a number of mathematical models are considered, in order to optimize the design. The modeled designs are laboratory tested with an impedance tube system, and finally, the practical acoustic absorber design is tested in an ISO accredited reverberation chamber. It is seen that the simulation and impedance tube results match very closely, whereas the practical implementation performance is lower in terms of acoustic absorption. |
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