...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Smart Materials & Structures >Origami-based adjustable sound-absorbing metamaterial
【24h】

Origami-based adjustable sound-absorbing metamaterial

机译：基于Origami的可调吸音超材料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Broadband acoustic absorption at deep sub-wavelength has become a research hotspot, while current methods still suffer from thick structures and narrow bandwidth. This study proposes an origami-based foldable sound absorber based on micro-perforated resonators. The origami acoustic absorber is composed of six different channels. The resonance frequency of each channel can be easily tuned by origami process under the deep sub-wavelength thickness. When the structure is folded, the thickness is only 20 mm to 30 mm. The operating bandwidth can be tuned from 55 Hz to 80 Hz in the frequency range of 305 Hz to 540 Hz, where the average sound absorption coefficient is beyond 80%. Effective absorption can be realized via a design whose average thickness is only 1/34.4 lambda for the resonance frequency. This study broadens the sound absorption bandwidth and improves the low-frequency sound absorption ability, which provides an avenue for flexible low-frequency noise control.
机译：None

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号