Scholarlink

<p>To address the increasingly serious issue of noise pollution, we propose an ultra-broadband, wide-angle acoustic absorber based on a periodic acoustic rigid-metaporous composite array. Numerical simulation results verify its exceptional ultra-broadband acoustic absorption performance, achieving an average absorption coefficient of 90.9% across a frequency range from 500 to 4000&#xa0;Hz and incident angles within ± 75 degrees. Compared to other acoustic absorbers of similar size, our design offers superior absorption performance, while maintaining a more compact structure than absorbers with comparable efficiency. This work will provide a new approach for ultra-broadband and wide-angle acoustic wave absorption, with significant potential for noise suppression.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Ultra-broadband acoustic absorber based on periodic acoustic rigid-metaporous composite array

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年1月21日

查看全文
  • Dongguo Zhang,
  • Fei Sun,
  • Yichao Liu

摘要

To address the increasingly serious issue of noise pollution, we propose an ultra-broadband, wide-angle acoustic absorber based on a periodic acoustic rigid-metaporous composite array. Numerical simulation results verify its exceptional ultra-broadband acoustic absorption performance, achieving an average absorption coefficient of 90.9% across a frequency range from 500 to 4000 Hz and incident angles within ± 75 degrees. Compared to other acoustic absorbers of similar size, our design offers superior absorption performance, while maintaining a more compact structure than absorbers with comparable efficiency. This work will provide a new approach for ultra-broadband and wide-angle acoustic wave absorption, with significant potential for noise suppression.