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    • 2. 发明授权
    • Sound absorbing structure
    • 吸音结构
    • US07654364B2
    • 2010-02-02
    • US11792297
    • 2005-12-15
    • Zenzo YamaguchiIchiro YamagiwaToshimitsu TanakaHiroki UedaKensuke Tsubota
    • Zenzo YamaguchiIchiro YamagiwaToshimitsu TanakaHiroki UedaKensuke Tsubota
    • E04B1/82
    • B60R13/0838B32B3/266B60R13/0861B60R13/0876B60R13/0884G10K11/16
    • A sound absorbing structure having excellent in sound absorbing performance, which is capable of achieving 0.4 or higher in the sound absorbing coefficient even in the case where a perforated panel is a thin plate such as aluminum foil within a range where a reduction in the weight of a vehicle body is not impaired and through holes have a large hole diameter in order to make the processing of providing a large number of through holes in the perforated panel. The sound absorbing structure 1 is the sound absorbing structure 1 for suppressing noise generated on a sound source side, which is equipped with: a perforated panel 2 having a large number of through holes 3 and a fiber material 4, which are provided so as to face the sound source side and provided so as to overlap with each other; and an air layer 5 provided behind the perforated panel 2, in which the density and the thickness of the fiber material 4 and the hole diameter and the aperture rate of the through holes 3 of the perforated panel 2 severally have a specific relationship.
    • 即使在穿孔板是诸如铝箔的薄板的情况下,吸音性能也优异的吸声性能也能达到0.4以上的吸音结构, 车身不受损伤,并且通孔具有大的孔直径,以便在多孔板中提供大量通孔的加工。 吸音结构体1是用于抑制在声源侧产生的噪声的吸音结构体1,其具有:具有多个通孔3和纤维材料4的多孔板2,其设置成 面对声源侧并且设置成彼此重叠; 以及设置在穿孔板2后面的空气层5,其中纤维材料4的密度和厚度以及穿孔板2的通孔3的孔径和孔径率各自具有特定关系。
    • 3. 发明申请
    • Sound Absorbing Structure
    • 吸声结构
    • US20080128201A1
    • 2008-06-05
    • US11792297
    • 2005-12-15
    • Zenzo YamaguchiIchiro YamagiwaToshimitsu TanakaHiroki UedaKensuke Tsubota
    • Zenzo YamaguchiIchiro YamagiwaToshimitsu TanakaHiroki UedaKensuke Tsubota
    • E04B1/82
    • B60R13/0838B32B3/266B60R13/0861B60R13/0876B60R13/0884G10K11/16
    • A sound absorbing structure having excellent in sound absorbing performance, which is capable of achieving 0.4 or higher in the sound absorbing coefficient even in the case where a perforated panel is a thin plate such as aluminum foil within a range where a reduction in the weight of a vehicle body is not impaired and through holes have a large hole diameter in order to make the processing of providing a large number of through holes in the perforated panel. The sound absorbing structure 1 is the sound absorbing structure 1 for suppressing noise generated on a sound source side, which is equipped with: a perforated panel 2 having a large number of through holes 3 and a fiber material 4, which are provided so as to face the sound source side and provided so as to overlap with each other; and an air layer 5 provided behind the perforated panel 2, in which the density and the thickness of the fiber material 4 and the hole diameter and the aperture rate of the through holes 3 of the perforated panel 2 severally have a specific relationship.
    • 即使在穿孔板是诸如铝箔的薄板的情况下,吸音性能也优异的吸声性能也能达到0.4以上的吸音结构, 车身不受损伤,并且通孔具有大的孔直径,以便在多孔板中提供大量通孔的加工。 吸音结构体1是用于抑制在声源侧产生的噪声的吸音结构体1,其具有:具有多个通孔3和纤维材料4的多孔板2,其设置成 面对声源侧并且设置成彼此重叠; 以及设置在穿孔板2后面的空气层5,其中纤维材料4的密度和厚度以及穿孔板2的通孔3的孔径和孔径率各自具有特定关系。
    • 5. 发明申请
    • Porous sound absorbing structure
    • 多孔吸音结构
    • US20100175949A1
    • 2010-07-15
    • US12659654
    • 2010-03-16
    • Zenzo YamaguchiToshimitsu TanakaIchiro YamagiwaHiroki UedaMitsuo Hino
    • Zenzo YamaguchiToshimitsu TanakaIchiro YamagiwaHiroki UedaMitsuo Hino
    • E04B1/82
    • G10K11/172
    • A porous sound absorbing structure 10 includes an exterior plate 1 and a closing plate 2 in order to suppress a decrease in sound absorbing performance in a wide frequency band. An interior plate 3 is arranged between the exterior plate 1 and the closing plate 2, and air layers 4 and 5 are located between the exterior plate 1 and the interior plate 3 and between the interior plate 3 and the closing plate 2 respectively. The exterior plate 1, the interior plate 3, and the closing plate 2 are arranged while opposed to each other. Many through holes 1a and 3a are made in the exterior plate 1 and the closing plate 2 respectively. In the interior plate 3, a plate thickness t2 and a diameter φ2 and an aperture ratio β2 are set so as to generate an viscous effect in air passing through the through hole 3a. The aperture ratio β1 of the through hole 1a in the exterior plate 1 is set more than 3% and not more than 50%.
    • 多孔吸音结构10包括外板1和封闭板2,以便抑制在宽频带中的吸音性能的降低。 内板3设置在外板1和封闭板2之间,空气层4和5分别位于外板1和内板3之间以及内板3和封闭板2之间。 外板1,内板3和封闭板2彼此相对设置。 在外板1和封闭板2上分别形成有多个通孔1a,3a。 在内板3中,设置板厚度t2和直径φ2以及开口率bgr2,以便在通过通孔3a的空气中产生粘性效果。 外板1中的通孔1a的开口率&bgr1设定为3%以上且50%以下。
    • 6. 发明申请
    • Porous Sound Absorbing Structure
    • 多孔吸音结构
    • US20070272482A1
    • 2007-11-29
    • US11578666
    • 2005-04-15
    • Zenzo YamaguchiToshimitsu TanakaIchiro YamagiwaHiroki UedaMitsuo Hino
    • Zenzo YamaguchiToshimitsu TanakaIchiro YamagiwaHiroki UedaMitsuo Hino
    • E04B1/82
    • G10K11/172
    • A porous sound absorbing structure 10 includes an exterior plate 1 and a closing plate 2 in order to suppress a decrease in sound absorbing performance in a wide frequency band. An interior plate 3 is arranged between the exterior plate 1 and the closing plate 2, and air layers 4 and 5 are located between the exterior plate 1 and the interior plate 3 and between the interior plate 3 and the closing plate 2 respectively. The exterior plate 1, the interior plate 3, and the closing plate 2 are arranged while opposed to each other. Many through holes 1a and 3a are made in the exterior plate 1 and the closing plate 2 respectively. In the interior plate 3, a plate thickness t2 and a diameter φ2 and an aperture ratio β2 are set so as to generate an viscous effect in air passing through the through hole 3a. The aperture ratio β1 of the through hole 1a in the exterior plate 1 is set more than 3% and not more than 50%.
    • 多孔吸音结构10包括外板1和封闭板2,以便抑制在宽频带中的吸音性能的降低。 内板3设置在外板1和封闭板2之间,空气层4和5分别位于外板1和内板3之间以及内板3和封闭板2之间。 外板1,内板3和封闭板2彼此相对设置。 分别在外板1和封闭板2上形成许多通孔1a和3a。 在内板3中,设定板厚t 2,直径φ2和开口率β2,以便在通过通孔3a的空气中产生粘性效果。 外板1中的通孔1a的孔径比β1设定为3%以上且50%以下。
    • 9. 发明授权
    • Double-walled damping structure
    • 双壁阻尼结构
    • US06708626B2
    • 2004-03-23
    • US10160001
    • 2002-06-04
    • Hiroki UedaIchiro YamagiwaAkio SugimotoToshimitsu TanakaNarikazu HashimotoTakashi Oka
    • Hiroki UedaIchiro YamagiwaAkio SugimotoToshimitsu TanakaNarikazu HashimotoTakashi Oka
    • B61D1710
    • B61D17/185B61D17/08B61D17/10
    • A double-walled damping structure includes two parallel face plates 1 and 2, a plurality of ribs 3 and 4 extending in the same direction to connect the two parallel face plates 1 and 2, wherein in a section taken perpendicularly to the direction of extension of the ribs 3 and 4, all or most of the holes defined by the adjacent two ribs and the face plates are trapezoidal. The structure less transmits vibration, and is capable of further increasing a damping effect when a damping material is attached. A double-walled sound insulation structure includes two parallel face plates 1 and 2 having a same thickness, a plurality of vertical ribs 3 extending in parallel with an equal pitch to connect the two parallel face plates 1 and 2, wherein assuming that the Young's modulus, density and thickness of each of the face plates are E, &rgr;, and t, respectively, and the pitch of the ribs is 1, the following equation (1) is satisfied: [Formula 1] 250 ≤ k 2 4 ⁢ π · t l 2 · ( E / 3 ⁢ ρ ) 1 / 2 ≤ 5000 ⁢ ⁢ (wherein ⁢   ⁢ k = 4.72 ⁢ ) ( 1 ) The structure effectively exhibits a sound insulating effect by itself, and is capable of further increasing the sound insulating effect when a damping material is attached.
    • 双壁阻尼结构包括两个平行的面板1和2,沿着相同的方向延伸以连接两个平行的面板1和2的多个肋3和4,其中在垂直于 肋3和4,由相邻的两个肋和面板限定的所有或大部分孔是梯形的。 结构较少传递振动,并且当阻尼材料附接时能够进一步增加阻尼效果。 双壁隔音结构包括具有相同厚度的两个平行面板1和2,多个垂直肋3,其以相等间距平行延伸以连接两个平行面板1和2,其中假定杨氏模量 ,每个面板的密度和厚度分别为E,rho和t,并且肋的间距为1,满足以下等式(1):[公式1]该结构有效地表现出隔音效果 并且能够在安装阻尼材料时进一步增加隔音效果。