04.2 - Aerostructures Design, Structural Dynamics, Aeroelasticity
DESIGN AND STUDY ON NOISE REDUCTION PROPERTIES OF A MULTISTAGE BIONIC MEMBRANE-TYPE ACOUSTIC METAMATERIAL
X.J. Zhang¹, D. Guo¹, H.Y. Huang¹; ¹School of Aeronautics, Northwestern Polytechnical University, China
In order to solve the problem of low frequency noise, a multistage bionic spider web model was designed based on the structural characteristics of spider web.The results shows that the cobweb model can effectively control the noise propagation and the multistate antiresonance mode of thin films enables the acoustic metamaterials to have high noise reduction and wide noise reduction bandwidth.