Schallabsorbierende Hülle (H) und Verfahren zur Herstellung einer schallabsorbierenden Hülle (H)

A method for producing a sound-absorbing enclosure for a sound emission source which emits sound having an energy spectrum includes constructing an irregular structure from substructures is printed from a printing material by means of 3D printing. The structure has material regions which are formed...

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Bibliographische Detailangaben
Hauptverfasser:	Fiebig, Thomas, Merklein, Carsten, Pecher, Alfred
Format:	Patent
Sprache:	ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SOUND-PRODUCING DEVICES THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A method for producing a sound-absorbing enclosure for a sound emission source which emits sound having an energy spectrum includes constructing an irregular structure from substructures is printed from a printing material by means of 3D printing. The structure has material regions which are formed by the printing material and which at least partly enclose hollow regions, and, by virtue of the hollow regions, the substructures each have a characteristic length lying within a characteristic interval and a characteristic density. The hollow regions are specifically formed by appropriate guidance of the 3D printing process and thereby the substructures with these features are adapted to the energy spectrum in such a way that they dissipate sound in a desired suppression range of the energy spectrum. A printed, sound-absorbing enclosure for a sound emission source is also disclosed.