AIR-TRANSPARENT SELECTIVE SOUND SILENCER USING ULTRA-OPEN METAMATERIAL

A bilayler metamaterial silencer allows substantial fluid through the apparatus, while mitigating the propagation of sound through the apparatus, and while providing a form factor that is significantly more compact than previously-known devices. Moreover, illustrative embodiments allow a designer to...

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Bibliographische Detailangaben
Hauptverfasser:	ANDERSON SAMUEL C, GHAFFARIVARDAVAGH REZA, ZHANG XIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A bilayler metamaterial silencer allows substantial fluid through the apparatus, while mitigating the propagation of sound through the apparatus, and while providing a form factor that is significantly more compact than previously-known devices. Moreover, illustrative embodiments allow a designer to specify one or both of the frequency or frequencies at which the apparatus mitigates sound propagation, and/ or the bandwidth around the frequency or frequencies at which the apparatus mitigates sound propagation. 一种双层超材料消音器，该双层超材料消音器允许大量的流体通过该设备，同时减轻声音通过该设备的传播，并且同时提供比先前已知装置明显更紧凑的形状因子。此外，例示性实施方式允许设计者指定设备减轻声音传播的频率或多个频率和/或该设备减轻声音传播的频率或多个频率附近的带宽中的一者或两者。