To provide a blade/stator blade interference noise reduction system capable of reducing a number of speakers.SOLUTION: A blade/stator blade interference noise reduction system in the embodiment comprises: a plurality of blades rotating around a center shaft; a plurality of stator blades facing the plurality of blades and whose number is equal to a number of the plurality of blades; a plurality of speakers arranged on positions almost along planes of the blades regulated by the plurality of rotating blades, and generate a control sound; and an evaluation microphone. A distance from the evaluation microphone to one of the plurality of speakers, a distance from the evaluation microphone to other one of the speakers, and a distance from the evaluation microphone to the center shaft, are almost equal.SELECTED DRAWING: Figure 1

    【課題】 スピーカの数を低減できる動翼静翼干渉騒音低減システムを提供する。【解決手段】 実施形態の動翼静翼干渉騒音低減システムは、中心軸回りに回転する複数の動翼と、前記複数の動翼に対向して、前記複数の動翼の数と同数に設けられた複数の静翼と、回転する前記複数の動翼で規定される動翼平面に略沿った位置に設置され、制御音を発生する複数のスピーカと、評価マイクと、を備える。前記評価マイクから前記複数のスピーカ中の1つまでの距離と、前記評価マイクから前記複数のスピーカ中の他の1つまでの距離と、前記評価マイクから前記中心軸までの距離と、が略同一である。【選択図】図1


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    Title :

    BLADE/STATOR BLADE INTERFERENCE NOISE REDUCTION SYSTEM AND FLIGHT BODY


    Additional title:

    動翼静翼干渉騒音低減システムおよび飛行体


    Contributors:

    Publication date :

    2019-09-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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