Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SOUND INSULATION STRUCTURE BODY
To provide a sound insulation structure body that has a double-wall structure, is lightweight and easy to handle and manufacture, and has high sound insulation properties over a wide range of sounds.SOLUTION: A sound insulation structure body has a pair of plate-like base materials 2 which are put one over the other at an interval, a column part 4 which is between the pair of base materials 2, and a resonance part 3 which is shorter in height than the column part 4. The column part 4 at 25°C has a storage elastic modulus of 1.0×105 Pa to 1.0×107 Pa at a frequency of 1 Hz, and a loss tangent of 0.01 to 0.50, and also has one end fixed to one base material 2 and the other fixed to the other base material 2. The resonance part 3 consists of a resonance part base part 3a which has the same storage elastic modulus and loss tangent with the column part 4, and a resonance part weight part 3b which has a larger mass than the resonance part base part 3a, and the resonance part base part 3a has one end fixed to the one base material 2 and the other end fixed to one end of the resonance part weight part 3b, which does not have the other end fixed to the base material 2. Then 5 to 800 column parts 4 and 10 to 1,000 resonance parts 3 are provided in every area of 1,000 cm2 of the base material 2.SELECTED DRAWING: Figure 1
【課題】二重壁構造で、軽量で取り扱いと製造が容易で、広範囲の音に高い遮音性を有する遮音構造体を提供する。【解決手段】間隔を置いて重なり合う１対の板状の基材２と、１対の基材２の間の支柱部４と支柱部４より高さが低い共振部３を有する。支柱部４は、２５℃で周波数１Ｈｚの貯蔵弾性率が１．０×１０5Ｐａ～１．０×１０7Ｐａで損失正接が０．０１～０．５０で、一端が一方の基材２に固定され他端が他方の基材２に固定されている。共振部３は、貯蔵弾性率と損失正接が支柱部４と同じ共振部基部３ａと、共振部基部３ａより質量が大きい共振部錘部３ｂとからなり、共振部基部３ａの一端が一方の基材２に固定され他端が共振部錘部３ｂの一端に接合され、共振部錘部３ｂの他端は基材２に固定されない。基材２の面積１０００ｃｍ2あたり５～８００個の支柱部４と１０～１０００個の共振部３が設けられている。【選択図】図１
SOUND INSULATION STRUCTURE BODY
To provide a sound insulation structure body that has a double-wall structure, is lightweight and easy to handle and manufacture, and has high sound insulation properties over a wide range of sounds.SOLUTION: A sound insulation structure body has a pair of plate-like base materials 2 which are put one over the other at an interval, a column part 4 which is between the pair of base materials 2, and a resonance part 3 which is shorter in height than the column part 4. The column part 4 at 25°C has a storage elastic modulus of 1.0×105 Pa to 1.0×107 Pa at a frequency of 1 Hz, and a loss tangent of 0.01 to 0.50, and also has one end fixed to one base material 2 and the other fixed to the other base material 2. The resonance part 3 consists of a resonance part base part 3a which has the same storage elastic modulus and loss tangent with the column part 4, and a resonance part weight part 3b which has a larger mass than the resonance part base part 3a, and the resonance part base part 3a has one end fixed to the one base material 2 and the other end fixed to one end of the resonance part weight part 3b, which does not have the other end fixed to the base material 2. Then 5 to 800 column parts 4 and 10 to 1,000 resonance parts 3 are provided in every area of 1,000 cm2 of the base material 2.SELECTED DRAWING: Figure 1
【課題】二重壁構造で、軽量で取り扱いと製造が容易で、広範囲の音に高い遮音性を有する遮音構造体を提供する。【解決手段】間隔を置いて重なり合う１対の板状の基材２と、１対の基材２の間の支柱部４と支柱部４より高さが低い共振部３を有する。支柱部４は、２５℃で周波数１Ｈｚの貯蔵弾性率が１．０×１０5Ｐａ～１．０×１０7Ｐａで損失正接が０．０１～０．５０で、一端が一方の基材２に固定され他端が他方の基材２に固定されている。共振部３は、貯蔵弾性率と損失正接が支柱部４と同じ共振部基部３ａと、共振部基部３ａより質量が大きい共振部錘部３ｂとからなり、共振部基部３ａの一端が一方の基材２に固定され他端が共振部錘部３ｂの一端に接合され、共振部錘部３ｂの他端は基材２に固定されない。基材２の面積１０００ｃｍ2あたり５～８００個の支柱部４と１０～１０００個の共振部３が設けられている。【選択図】図１
SOUND INSULATION STRUCTURE BODY
遮音構造体
KUMEDA KENTA (Autor:in) / NAKAJIMA TOMONORI (Autor:in)
02.05.2023
Patent
Elektronische Ressource
Japanisch
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