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    • 4. 发明申请
    • SOLID-BORNE SOUND REDUCTION STRUCTURE
    • 固体低音降噪结构
    • WO2008010554A8
    • 2008-03-27
    • PCT/JP2007064273
    • 2007-07-19
    • KOBE STEEL LTDTSUGIHASHI KAZUKITANAKA TOSHIMITSU
    • TSUGIHASHI KAZUKITANAKA TOSHIMITSU
    • G10K11/16F04B39/00
    • F04B39/0027F04B39/0033G10K11/172
    • A simple solid-borne sound reduction structure for reducing solid-borne sound has a high durability and hardly degrading. A solid-borne sound reduction structure (100) comprises a structural body (200) radiating noise, a surface plate part (1) covering at least a part of the surface (200a) of the structural body (200) and having a gas-ventilating part (1a) capable of passing gas in the direction of the thickness of thereof, and an outer peripheral wall surface part (2) for securing the surface plate part (1) to the structural body (200). The surface plate part (1) is so supported as to vibrate with the surface (200a) of the structural body (200) in one body. The outer peripheral wall surface part (2) supports the surface plate part (1) so as to define an inner gas chamber between the surface (200a) of the structural body (200) and the surface plate part (1).
    • 用于减少固体声音的简单的固体声音降低结构具有高耐久性并且几乎不劣化。 固体减声结构(100)包括辐射噪声的结构体(200),覆盖结构体(200)的表面(200a)的至少一部分的表面板部分(1) 能够沿其厚度方向通过气体的通风部(1a)和用于将表面板部(1)固定在结构体(200)上的外周壁面部(2)。 表面板部分(1)被支撑成与一体结构体(200)的表面(200a)振动。 外周壁面部分(2)支撑表面板部分(1),以在结构体(200)的表面(200a)和表面板部分(1)之间限定内部气体室。
    • 10. 发明专利
    • DE112005003232T5
    • 2008-03-06
    • DE112005003232
    • 2005-12-15
    • KOBE STEEL LTD
    • YAMAGUCHI ZENZOYAMAGIWA ICHIROTANAKA TOSHIMITSUUEDA HIROKITSUBOTA KENSUKE
    • B60R13/08B23B5/24G10K11/172
    • 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.