DEVELOPMENT AND APPL.ICATION OF A PORTABLE LIGHTWEIGHT SOUND SUPRESSION PANEL TO REDUCE NOISE AT PERMANENT AND TEMPORARY WORKPLACES IN THE MANUFACTURING AND REPAIR WORKSHOPS

This research falls in the field of machine-building, construction and woodworking, concerns sound suppression panels for cabins, enclosures, soundproofing acoustic shields, temporary room partitions, etc., and solves the problem of making sound suppression panels easy for installation and dismantling, as well as transportable and storable, without reduction in noise suppression effectiveness. For thispurpose, pads connected with two parallel sheets are placed between them. The pads form a layer which cross section is a chain of rhombuses, and the parallel sheets have curvature lineson the level of the rhombuses connection. The portable lightweight sound suppression panel (SSP)with a diamond-shaped structure is made of organic and polymer materials, such as pulp-and-paper materials, fabrics and polymer films which can significantly reduce the structure weight.