Research and Development of Acoustic Material for Simulating Ground Absorption
LUO Man;YAN Xiang;CHEN Xuyong;Acoustic Laboratory,School of Architecture,Tsinghua University;
The researches and development progresses of acoustic material that simulating ground absorption for military use are discussed. Some scientific methods such as standing wave test,field reflection test,reverberation chamber test,airflow resistance test and porosity test,electron microscope analysis are used. Through integrated assessment for the acoustic performance of 5 typical soil types on the countryside of Beijing,a kind of sand panel that simulating the absorption of the soil is developed.