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公开(公告)号:US20140216845A1
公开(公告)日:2014-08-07
申请号:US14096833
申请日:2013-12-04
发明人: Tongan Wang , John Maxon , Andrew Foose , David Charles Hornick , Josef Fila
IPC分类号: B64C1/40
CPC分类号: B64C1/40 , B29C65/00 , B29C66/11 , B29C66/1122 , B29C66/1142 , B29C66/43 , B29K2105/04 , B32B3/12 , B32B5/26 , B32B5/32 , B32B7/02 , B32B2250/02 , B32B2250/03 , B32B2250/04 , B32B2250/05 , B32B2250/20 , B32B2250/22 , B32B2266/0257 , B32B2266/0285 , B32B2266/06 , B32B2307/102 , B32B2307/718 , B32B2605/18 , B64C1/00 , E04B1/82 , E04B1/84 , G10K11/00 , G10K11/02 , Y02T50/46 , Y10T428/24149
摘要: Embodiments of thermal-acoustic sections for an aircraft for reducing noise along an acoustic path produced from an acoustic source are provided herein. The thermal-acoustic section comprises a first porous layer having a first characteristic acoustic impedance. A second porous layer is disposed adjacent to the first porous layer and has a second characteristic acoustic impedance that is greater than the first characteristic acoustic impedance. The thermal-acoustic section is configured to be positioned along the acoustic path such that at least a portion of the noise from the acoustic source is directed through the first porous layer to the second porous layer to promote absorption of the noise.
摘要翻译: 本文提供了用于从声源产生的用于降低沿着声学路径的噪声的用于飞行器的热声部分的实施例。 热声部分包括具有第一特征声阻抗的第一多孔层。 第二多孔层设置成与第一多孔层相邻并且具有大于第一特征声阻抗的第二特征声阻抗。 热声部分被配置成沿着声学路径定位,使得来自声源的噪声的至少一部分被引导通过第一多孔层到第二多孔层以促进噪声的吸收。
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公开(公告)号:US20130206504A1
公开(公告)日:2013-08-15
申请号:US13797127
申请日:2013-03-12
发明人: Tongan Wang , John Maxon , Andrew Foose , David Charles Hornick , Josef Fila
IPC分类号: B64C1/40
CPC分类号: B64C1/40 , B29C65/00 , B29C66/11 , B29C66/1122 , B29C66/1142 , B29C66/43 , B29K2105/04 , B32B3/12 , B32B5/26 , B32B5/32 , B32B7/02 , B32B2250/02 , B32B2250/03 , B32B2250/04 , B32B2250/05 , B32B2250/20 , B32B2250/22 , B32B2266/0257 , B32B2266/0285 , B32B2266/06 , B32B2307/102 , B32B2307/718 , B32B2605/18 , B64C1/00 , E04B1/82 , E04B1/84 , G10K11/00 , G10K11/02 , Y02T50/46 , Y10T428/24149
摘要: Embodiments of thermal-acoustic sections for an aircraft for reducing noise along an acoustic path produced from an acoustic source are provided herein. The thermal-acoustic section comprises a first porous layer having a first characteristic acoustic impedance. A second porous layer is disposed adjacent to the first porous layer and has a second characteristic acoustic impedance that is greater than the first characteristic acoustic impedance. The thermal-acoustic section is configured to be positioned along the acoustic path such that at least a portion of the noise from the acoustic source is directed through the first porous layer to the second porous layer to promote absorption of the noise.
摘要翻译: 本文提供了用于从声源产生的用于降低沿着声学路径的噪声的用于飞行器的热声部分的实施例。 热声部分包括具有第一特征声阻抗的第一多孔层。 第二多孔层设置成与第一多孔层相邻并且具有大于第一特征声阻抗的第二特征声阻抗。 热声部分被配置成沿着声学路径定位,使得来自声源的噪声的至少一部分被引导通过第一多孔层到第二多孔层以促进噪声的吸收。
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公开(公告)号:US09038774B2
公开(公告)日:2015-05-26
申请号:US14096833
申请日:2013-12-04
发明人: Tongan Wang , John Maxon , Andrew Foose , David Charles Hornick , Josef Fila
IPC分类号: E04B1/82 , E04B1/84 , E04B2/02 , B32B3/12 , B64C1/40 , H02N2/00 , B29C65/00 , B64C1/00 , G10K11/00 , G10K11/02 , B32B5/26 , B32B5/32 , B32B7/02 , B29K105/04
CPC分类号: B64C1/40 , B29C65/00 , B29C66/11 , B29C66/1122 , B29C66/1142 , B29C66/43 , B29K2105/04 , B32B3/12 , B32B5/26 , B32B5/32 , B32B7/02 , B32B2250/02 , B32B2250/03 , B32B2250/04 , B32B2250/05 , B32B2250/20 , B32B2250/22 , B32B2266/0257 , B32B2266/0285 , B32B2266/06 , B32B2307/102 , B32B2307/718 , B32B2605/18 , B64C1/00 , E04B1/82 , E04B1/84 , G10K11/00 , G10K11/02 , Y02T50/46 , Y10T428/24149
摘要: Embodiments of thermal-acoustic sections for an aircraft for reducing noise along an acoustic path produced from an acoustic source are provided herein. The thermal-acoustic section comprises a first porous layer having a first characteristic acoustic impedance. A second porous layer is disposed adjacent to the first porous layer and has a second characteristic acoustic impedance that is greater than the first characteristic acoustic impedance. The thermal-acoustic section is configured to be positioned along the acoustic path such that at least a portion of the noise from the acoustic source is directed through the first porous layer to the second porous layer to promote absorption of the noise.
摘要翻译: 本文提供了用于从声源产生的用于降低沿着声学路径的噪声的用于飞行器的热声部分的实施例。 热声部分包括具有第一特征声阻抗的第一多孔层。 第二多孔层设置成与第一多孔层相邻并且具有大于第一特征声阻抗的第二特征声阻抗。 热声部分被配置成沿着声学路径定位,使得来自声源的噪声的至少一部分被引导通过第一多孔层到第二多孔层以促进噪声的吸收。
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