Membrane acoustic metamaterial absorbers with magnetic negative stiffness

• Published in: The Journal of the Acoustical Society of America Vol. 141; no. 2; p. 840
• Main Authors: Zhao, Junjuan, Li, Xianhui, Wang, Yueyue, Wang, Wenjiang, Zhang, Bin, Gai, Xiaoling
• Format: Journal Article
• Language: English
• Published: United States 01.02.2017

A membrane absorber usually requires a large back cavity to achieve low-frequency sound absorption. This paper describes the design of a membrane acoustic metamaterial absorber in which magnetic negative stiffness is employed to reduce the size of the back cavity. As a baseline for the present resea...