Teaching-learning-based optimization of a composite metastructure in the 0-10 kHz broadband sound absorption range

Nansha Gao, Dongdong Luo, Baozhu Cheng, Hong Hou

科研成果: 期刊稿件文章同行评审

80 引用 (Scopus)

摘要

This paper proposes a strategy to broaden the sound absorption region of porous materials by embedding ribs. The theoretical solution and the numerical simulations of the optimization model show that the composite metastructure exhibits ultra-wide high absorption characteristics and an average sound absorption coefficient of 0.937 in the 0-10 kHz range upon its teaching-learning-based optimization. High sound pressures are present only among the embedded ribs. A significant slowing down of the sound takes place inside the metastructure. The impedance tube test confirms the design of the broadband sound absorption region in agreement with the teaching-learning-based optimization method.

源语言英语
页(从-至)EL125-EL129
期刊Journal of the Acoustical Society of America
148
2
DOI
出版状态已出版 - 1 8月 2020

指纹

探究 'Teaching-learning-based optimization of a composite metastructure in the 0-10 kHz broadband sound absorption range' 的科研主题。它们共同构成独一无二的指纹。

引用此