Multi-Channel Active Control System and Methods for the Reduction of Tonal Noise from an Axial Fan
    1.
    发明申请
    Multi-Channel Active Control System and Methods for the Reduction of Tonal Noise from an Axial Fan 审中-公开
    多通道主动控制系统和降低轴向风机噪音的方法

    公开(公告)号:US20110046794A1

    公开(公告)日:2011-02-24

    申请号:US12675714

    申请日:2008-08-28

    IPC分类号: G05D19/00 G06N3/12 G05B13/04

    摘要: A method of optimizing placement of a control source relative to a noise source includes establishing a first pool of constructive chromosomes, each constructive chromosome defining a potential spatial position for the control source in an acoustic space and each constructive chromosome including a plurality of constructive genes having a value-based value that represents an ordinate related to the potential spatial position. A second pool of constructive chromosomes is established by manipulating the value-based values of constructive genes from at least a portion of the plurality of constructive chromosomes of the first pool to create a plurality of modified constructive chromosomes, and evaluating a fitness characteristic of at least some of the constructive chromosomes from the first pool and/or at least some of the constructive chromosomes from the second pool. A portion of the constructive chromosomes are eliminated from the first and/or second pools based on the fitness characteristic.

    摘要翻译: 优化控制源相对于噪声源的放置的方法包括建立第一建构性染色体池,每个构建性染色体在声学空间中定义控制源的潜在空间位置,并且每个构建性染色体包括多个构建性基因,其具有 表示与潜在空间位置相关的纵坐标的基于值的值。 第二个建设性染色体池是通过从第一个池的多个建设性染色体的至少一部分操纵建构性基因的基于价值的值来建立的,以创建多个修饰的构建性染色体,并评估至少 来自第一个池的一些构建性染色体和/或来自第二个池的至少一些构建性染色体。 基于适应度特征,从第一和/或第二池中消除一部分结构性染色体。

    Multi-channel active control system and method for the reduction of tonal noise from an axial fan
    2.
    发明授权
    Multi-channel active control system and method for the reduction of tonal noise from an axial fan 有权
    多通道主动控制系统及降低轴流风扇噪音的方法

    公开(公告)号:US07272234B2

    公开(公告)日:2007-09-18

    申请号:US10407915

    申请日:2003-04-04

    IPC分类号: A61F11/06 G10K11/16 H03B29/00

    CPC分类号: G10K11/178

    摘要: A multi-channel active noise control system and method of reducing tonal noise emanating from a tonal noise source are disclosed. The system may include an adaptive controller, a plurality of loudspeakers driven by the loudspeaker, one or more microphones for generating one or more error signals to feedback to the adaptive controller and optionally a reference signal source to provide the adaptive controller with frequency information associated with the tonal noise source. The system and method of the present invention are applicable to any tonal noise source, including but not limited to axial fans.

    摘要翻译: 公开了一种减少从音调噪声源发出的音调噪声的多声道主动噪声控制系统和方法。 该系统可以包括自适应控制器,由扬声器驱动的多个扬声器,一个或多个麦克风,用于产生一个或多个误差信号以反馈给自适应控制器和可选地参考信号源,以向自适应控制器提供与 音调噪声源。 本发明的系统和方法可应用于任何音调噪声源,包括但不限于轴流风扇。