Structure destinée à assurer l'amortissement des vibrations

946,545. Laminates. BOLT, BERANCK & NEWMAN Inc. Jan. 6, 1960 [March 23, 1959], No. 546/60. Heading B5N. A laminated acoustic panel for damping a broad range of frequencies with constant damping throughout the range comprises a pair of surface members 1, 3 made of steel or a material having compa...

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Bibliographische Detailangaben
1. Verfasser:	KURTZE,GUENTHER
Format:	Patent
Sprache:	fre
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SHOCK-ABSORBERS SOUND-PRODUCING DEVICES SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Zusammenfassung:	946,545. Laminates. BOLT, BERANCK & NEWMAN Inc. Jan. 6, 1960 [March 23, 1959], No. 546/60. Heading B5N. A laminated acoustic panel for damping a broad range of frequencies with constant damping throughout the range comprises a pair of surface members 1, 3 made of steel or a material having comparable stiffness and a core 5 made of a vibration-dissipative, shear-deformable, plastic material such as hard wax or asphalt, the thickness of the core being greater than the combined thickness of the surface members and the mass per unit area of the core being equal to or greater than the mass per unit area of the members. Instead of deforming by contraction and expansion, the core deforms in shear.