A compact multifunctional metastructure for Low-frequency broadband sound absorption and crash energy dissipation

Zhiwen Ren, Yuehang Cheng, Mingji Chen*, Xujin Yuan, Daining Fang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

79 引用 (Scopus)
Plum Print visual indicator of research metrics
  • Citations
    • Citation Indexes: 76
  • Captures
    • Readers: 19
see details

摘要

Sound absorption structures, as an effective approach to reducing sound radiation, have always received extensive attention in the engineering of vibration and noise reduction. In this work, a novel compact multifunctional metastructure is proposed for both low-frequency broadband sound absorption and excellent crash energy dissipation. Cavity resonators with internally extended tubes (CRIET) with hexagonal honeycomb configuration were selected as unit components. An optimization method was proposed to against degradation from impedance coupling effect and contribute to flatter and higher sound absorption coefficient (SAC) curves. The as-designed metastructure has been demonstrated experimentally to have quasi-perfect broadband sound absorption in the target range of 600–1000 Hz with an average SAC above 0.9 and a deep-subwavelength thickness of 30 mm. Compression experiment showed that the CRIET metastructure with hexagonal honeycomb configuration had the same unique excellent load-bearing and crash energy dissipation performance as an intact honeycomb structure. This study provides inspirations and methods for the compact and multifunctional design of broadband sound absorption structures.

源语言英语
文章编号110462
期刊Materials and Design
215
DOI
出版状态已出版 - 3月 2022

指纹

探究 'A compact multifunctional metastructure for Low-frequency broadband sound absorption and crash energy dissipation' 的科研主题。它们共同构成独一无二的指纹。

引用此

Ren, Z., Cheng, Y., Chen, M., Yuan, X., & Fang, D. (2022). A compact multifunctional metastructure for Low-frequency broadband sound absorption and crash energy dissipation. Materials and Design, 215, 文章 110462. https://doi.org/10.1016/j.matdes.2022.110462