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    METHOD FOR DESIGNING A SOUND-ABSORBENT WALL
    1.
    发明申请
    METHOD FOR DESIGNING A SOUND-ABSORBENT WALL 审中-公开
    设计吸声墙的方法

    公开(公告)号：WO0137252A3

    公开(公告)日：2002-01-24

    申请号：PCT/NL0000847

    申请日：2000-11-20

    Applicant: STICHTING TECH WETENSCHAPP ,  TIJDEMAN HENDRIK ,  EERDEN FREDERICUS JOSEPH MARIE ,  TILLEMA HEDZER GIDO

    Inventor： TIJDEMAN HENDRIK ,  VAN DER EERDEN FREDERICUS JOSE ,  TILLEMA HEDZER GIDO

    IPC: G10K11/172

    CPC classification number: G10K11/172

    Abstract: Method for designing a sound-absorbent wall (1) having cavity structures, wherein each cavity structure comprises a primary cavity (2) in a sound-absorbent surface (8) of the wall (1). The method comprises the steps for determination of an absorption spectrum of the sound-absorbent wall (1) as a function of design parameters, which, for each cavity structure, consist of a surface porosity OMEGA of the sound-absorbent surface (8), the primary length of the primary cavity (2) and the primary crosssection of the primary cavity (2), variation of at least one of the design parameters and selection of values of the design parameters where the absorption spectrum meets a desired absorption spectrum. In one embodiment, by means of which the absorption spectrum becomes more broadband, each cavity structure further comprises a secondary cavity (3) and the design parameters further comprise the secondary length of the secondary cavity (3) and the secondary crosssection of the secondary cavity (3).

    Abstract translation: 一种用于设计具有空腔结构的吸音墙（1）的方法，其中每个空腔结构包括在所述壁（1）的吸声表面（8）中的主空腔（2）。 该方法包括以下步骤：根据设计参数确定吸音壁（1）的吸收光谱，每个空腔结构由吸声表面（8）的表面孔隙度OMEGA组成， 主空腔（2）的主要长度和主空腔（2）的主要横截面，设计参数中的至少一个的变化和设计参数的值的选择，其中吸收光谱满足期望的吸收光谱。 在一个实施例中，借助于此吸收光谱变得更宽带，每个空腔结构还包括二次空腔（3），并且设计参数还包括次级空腔（3）的次级长度和次级空腔的次级横截面 （3）。

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