Design for a dual range sound absorber made by additive layer manufacturing

摘要

The design consist in groups of acoustic elements (see fig 6B of previous page) built together (called panel} Each acoustic element geometrical parameter is driven by the acoustic response. The number of elements by panel is driven by the volume of the deposition chamber of the additive layer manufacturing machine To decrease the cost of such structure, the panels are built vertically. The panels can be built in shape to comply the curvatures of the element on which they are attached.