Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SOUND ABSORPTION STRUCTURE AND WORKING SCAFFOLD
To provide a sound absorption structure which is easy to manufacture even when a first resonator and a second resonator are superimposed in a first direction, and a working scaffold.SOLUTION: A sound absorption structure includes: a first resonator which has a first sound absorption port and a first air chamber connected to the first sound absorption port and absorbs sound of a first frequency by Helmholtz resonance; and a second resonator which has a second sound absorption port and a second air chamber connected to the second sound absorption port and absorbs sound of a second frequency different from the first frequency by Helmholtz resonance. The first sound absorption port and the second sound absorption port open at different positions when viewed from a first direction. The first air chamber and the second air chamber do not communicate with each other and overlap each other when viewed in the first direction.SELECTED DRAWING: Figure 2
【課題】第１方向において第１共鳴器と第２共鳴器とが重ね合わされても、製造しやすい吸音構造体および作業用足場を提供する。【解決手段】吸音構造体は、第１吸音口と、第１吸音口に接続された第１空気室とを備え、ヘルムホルツ共鳴により第１周波数の音を吸収する第１共鳴器と、第２吸音口と、第２吸音口に接続された第２空気室とを備え、ヘルムホルツ共鳴により第１周波数と異なる第２周波数の音を吸収する第２共鳴器と、を含む。第１吸音口と、第２吸音口とが、第１方向からみて、異なる位置に開口している。そして、第１空気室と、第２空気室とは、非連通であって、かつ第１方向にみて重畳する。【選択図】図２
SOUND ABSORPTION STRUCTURE AND WORKING SCAFFOLD
To provide a sound absorption structure which is easy to manufacture even when a first resonator and a second resonator are superimposed in a first direction, and a working scaffold.SOLUTION: A sound absorption structure includes: a first resonator which has a first sound absorption port and a first air chamber connected to the first sound absorption port and absorbs sound of a first frequency by Helmholtz resonance; and a second resonator which has a second sound absorption port and a second air chamber connected to the second sound absorption port and absorbs sound of a second frequency different from the first frequency by Helmholtz resonance. The first sound absorption port and the second sound absorption port open at different positions when viewed from a first direction. The first air chamber and the second air chamber do not communicate with each other and overlap each other when viewed in the first direction.SELECTED DRAWING: Figure 2
【課題】第１方向において第１共鳴器と第２共鳴器とが重ね合わされても、製造しやすい吸音構造体および作業用足場を提供する。【解決手段】吸音構造体は、第１吸音口と、第１吸音口に接続された第１空気室とを備え、ヘルムホルツ共鳴により第１周波数の音を吸収する第１共鳴器と、第２吸音口と、第２吸音口に接続された第２空気室とを備え、ヘルムホルツ共鳴により第１周波数と異なる第２周波数の音を吸収する第２共鳴器と、を含む。第１吸音口と、第２吸音口とが、第１方向からみて、異なる位置に開口している。そして、第１空気室と、第２空気室とは、非連通であって、かつ第１方向にみて重畳する。【選択図】図２
SOUND ABSORPTION STRUCTURE AND WORKING SCAFFOLD
吸音構造体および作業用足場
SAKIMOTO YU (Autor:in) / KATSUZAKI AKIHIRO (Autor:in) / SASAKI KEISUKE (Autor:in) / TOMIOKA KIMIKAZU (Autor:in) / NAGATA TAKASHI (Autor:in) / MIKI EIJI (Autor:in)
24.04.2023
Patent
Elektronische Ressource
Japanisch
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