Active noise reduction of blade-passing frequency tone radiated from a centrifugal blower

Yutaka Ota, Takashi Goto, Eisuke Outa

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The blade-passing frequency noise, abbreviated to BPF noise, radiated from a centrifugal blower, exhibits an extremely high level in the power spectrum of blower-radiated noise and dominates the overall noise level. In the present research, therefore, attention is focused on the BPF noise and two kinds of active control methods are applied to reduce the BPF noise level. One is an active noise source cancellation method and the other is an active noise reduction in the transmission passage. The assumed extent of the BPF noise source is replaced by flat plates which are driven by piezoelectric actuators, and the noise level of BPF can be reduced effectively without any influence on the other frequency components. In the noise reduction in the transmission passage, a small-sized loud speaker is used as a secondary source. The noise level of BPF can be reduced remarkably even in the highrotation region, as usually expected.

    Original languageEnglish
    Title of host publicationInstitute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006
    Pages2509-2518
    Number of pages10
    Volume4
    Publication statusPublished - 2006
    Event35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006 - Honolulu, HI
    Duration: 2006 Dec 32006 Dec 6

    Other

    Other35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006
    CityHonolulu, HI
    Period06/12/306/12/6

    Fingerprint

    blowers
    blades
    noise reduction
    piezoelectric actuators
    active control
    flat plates
    cancellation
    power spectra

    ASJC Scopus subject areas

    • Acoustics and Ultrasonics

    Cite this

    Ota, Y., Goto, T., & Outa, E. (2006). Active noise reduction of blade-passing frequency tone radiated from a centrifugal blower. In Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006 (Vol. 4, pp. 2509-2518)

    Active noise reduction of blade-passing frequency tone radiated from a centrifugal blower. / Ota, Yutaka; Goto, Takashi; Outa, Eisuke.

    Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006. Vol. 4 2006. p. 2509-2518.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Ota, Y, Goto, T & Outa, E 2006, Active noise reduction of blade-passing frequency tone radiated from a centrifugal blower. in Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006. vol. 4, pp. 2509-2518, 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006, Honolulu, HI, 06/12/3.
    Ota Y, Goto T, Outa E. Active noise reduction of blade-passing frequency tone radiated from a centrifugal blower. In Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006. Vol. 4. 2006. p. 2509-2518
    Ota, Yutaka ; Goto, Takashi ; Outa, Eisuke. / Active noise reduction of blade-passing frequency tone radiated from a centrifugal blower. Institute of Noise Control Engineering of the USA - 35th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2006. Vol. 4 2006. pp. 2509-2518
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