Voice isolation: a look at the printed 3D sound panels

5 numerical evaluation of the various solutions of the maze’s sound absorption board

Then the polyamide plate is manufactured by selective lasers (SLS), a technique in which each level is dressed by a laser beam, directed by the survey system. The process is repeated, and the initial model is designed by layer. SLS is chosen as the most suitable manufacturing technique because it does not require support to maintain inclined and horizontal protrusions and allow the manufacture of undermining operations. However, to manufacture hollow structures such as UCS, it is necessary to include at least two holes (on the upper and lower surfaces) for each UC cavity, in order to remove any remaining powder from the manufacturing process, so an additional opening for each University of California is added. For the measurement stage, these additional openings are closed using the correct sized polyamide covers that are fixed to the aluminum tape to ensure an audio seal. In Figure 7C, a 3D display of the final panel appears.

The AM board can be modeling in FE using six different areas, as shown in Figure 8, three of which are the structural areas (the side walls of the AM painting, the front and rear surfaces) and three audio areas (Voids UC cavity, and the opening “hats” on the front and rear surfaces ).