Sökning: "ASTM E2611-09."

Hittade 1 uppsats innehållade orden ASTM E2611-09..

  1. 1. Absorption properties of green sound barriers

    Master-uppsats, KTH/MWL Marcus Wallenberg Laboratoriet

    Författare :Sherif Fouda; [2018]
    Nyckelord :Impedance tube; Sound absorption measurement; transfer function; three microphones; Sound barrier; ISO 10534-2; ASTM E2611-09.;

    Sammanfattning : This thesis was conducted on behalf of Butong AB, who wanted to test and develop an environmental friendly, so called green sound barrier, which combines both art and science.Different configurations of the product were proposed by the company with various filling materials, as it was predicted that the filling materials would be the main sound absorbent among all parts of the structure. LÄS MER