FIELD: vibration damping.
SUBSTANCE: invention relates to a combined vibration damping material intended for use in automobile, ship and aircraft construction, in civil and industrial construction to reduce vibration and structural and airborne noise of various structures, in particular thin-walled metal structures. The combined vibration damping material is made multilayer and comprises the following successively connected layers: a reinforcing layer, a sound-insulating viscoelastic layer, a layer of sintered polypropylene foam granules, a viscoelastic adhesive layer.
EFFECT: invention provides improvement of sound-proof and vibration-damping properties of the combined vibration-damping material.
10 cl, 1 dwg, 1 tbl
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