Wide-band vibration damper
AssigneeMesserschmitt-Bolkow-Blohm GmbH
InventorOskar Bschorr
Life of this patent
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Abstract
A wide-band vibration damper for damping sound propagating in a solid body includes at least one horn member having a broad end or side and a tapering end. The broad horn side or end is rigidly connected to the solid body which is to be dampened in its vibration. The tapering end of the horn member is connected to a supporting rigid point through a damping material such as a foam material or the like.
Claims22
A wide-band vibration damper for damping sound propagating in a solid body, comprising sound vibration conductor means, the entire volume of which is solid material, said sound vibration conductor means having a first larger end and a second smaller end, said first larger end having a larger dimension than said second smaller end, whereby said solid material volume has a cross-section which diminishes from said first larger end to said second smaller end, said first larger and second smaller end being interconnected entirely by said solid material so that sound vibrations travelling from said first larger end to said second smaller end must travel entirely through said solid material volume, first means connecting said first larger end to said solid body for introducing sound vibrations into said solid material volume, support means located near said second smaller end, and damping material means operatively connecting said second smaller end to said support means for introducing sound vibrations in a damped manner into said support means, whereby said vibration conductor due to its diminishing cross-section transforms the sound vibrations into large excursions but small vibration forces.
A wide-band vibration damper for reducing sound propagation in fluid conduits comprising a plurality of coaxially arranged horn members, first and second fluid conduit means and housing means operatively interconnecting said first and second conduit means, said horn members being operatively disposed in said housing means so that gaps are formed between adjacent horn members, said gaps alternately tapering in opposite directions, whereby at least one tapering gap is formed between said conduit means and the horn member of smallest diameter and a further tapering gap is formed between said smallest diameter horn member and a horn member having the next larger diameter.
Dependencies are inferred from the claim text.