To provide a sound absorbing device and a wheel equipped with the sound absorbing device capable of achieving a double absorption function for acoustic resonance in an air chamber of the wheel by an organic combination of Helmholtz resonance sound absorption and structural resonance sound absorption when assembled to the wheel.SOLUTION: A sound absorbing device is configured as a rectangular hexahedral box body, forms a porous two-layer Helmholtz resonance sound absorbing structure, and has two hollow tubes 2 and 3 attached to a side surface 1. A first cavity 4 and a second cavity 7 constitute two resonance cavities for stratification of the porous two-layer Helmholtz resonance sound absorbing structure. The box-shaped sound absorbing device itself forms a structural resonant sound absorbing device whose primary intrinsic mode frequency coincides with the primary intrinsic mode frequency of the wheel air chamber.SELECTED DRAWING: Figure 1

    【課題】車輪に組み付けられた際に、ヘルムホルツ共鳴吸音と構造的共鳴吸音との有機的な組み合わせによる車輪の空気室の音響共鳴への二重吸収の機能を達成することができる吸音装置及び該吸音装置を備えた車輪を提供する。【解決手段】吸音装置は、長方形六面体形状の箱体として構成され、多孔質二層ヘルムホルツ共鳴吸音構造を形成し、側面1に2つの中空管2、3が取り付けられている。第1のキャビティ4と第2のキャビティ7とが、多孔質二層ヘルムホルツ共鳴吸音構造の層別化のための2つの共鳴キャビティを構成する。箱体の形態の吸音装置は、それ自体で構造的共鳴吸音デバイスを形成し、その一次固有モード周波数が車輪の空気室の一次固有モード周波数と一致する。【選択図】図1


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    Title :

    SOUND ABSORBING DEVICE AND WHEEL EQUIPPED WITH SOUND ABSORBING DEVICE


    Additional title:

    吸音装置及び該吸音装置を備えた車輪


    Contributors:
    XU SHIWEN (author) / CHEN MINGBO (author) / LI MINGLEI (author) / HUANG SHAOBING (author) / HU TIEFENG (author) / FENG SHUWEI (author) / WANG DADONG (author) / LIU WEIDONG (author)

    Publication date :

    2021-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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