FIELD: machine building.
SUBSTANCE: device includes a panel in the form of steel plates fixed on both sides on flexible material, and namely on metal mesh lined with fabric from basalt fibre on both sides and made of two and more panels fixed along the outlet and containing steel plates of various sizes and geometrical shape. Panels are located at the distance of 3 to 500 mm and at an angle of 0 to 45° relative to each other and connected to each other by means of adjustable inserts, and space between panels is filled with loose granulated acoustic and vibration insulating and/or fibrous material.
EFFECT: increasing acoustic and vibration insulating and sound absorbing efficiency of the device.
3 cl, 4 dwg
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