Single Layer Silk and Cotton Woven Fabrics for Acoustic Emission and Active Sound Suppression
Name
Advanced Materials - 2024 - Yang - Single Layer Silk and Cotton Woven Fabrics for Acoustic Emission and Active Sound.pdf
Description
Published version
Size
3.41 MB
Format
Adobe PDF
Checksum (MD5)
e3bf0c0828c2a29ed174d4796d9e3e21
Author(s)
Yang, Grace H
Lin, Jinuan
Cheung, Henry
Rui, Guanchun
Zhao, Yongyi
Balachander, Latika
Joo, Taigyu
Lee, Hyunhee
Smith, Zachary P
Zhu, Lei
Date Issued
April 1, 2024
Journal
Advanced Materials
Publisher
Wiley
Citation
Yang, Grace H, Lin, Jinuan, Cheung, Henry, Rui, Guanchun, Zhao, Yongyi et al. 2024. "Single Layer Silk and Cotton Woven Fabrics for Acoustic Emission and Active Sound Suppression." Advanced Materials, 36 (28).
Version
Final published version
Abstract
Whether intentionally generating acoustic waves or attempting to mitigate unwanted noise, sound control is an area of challenge and opportunity. This study investigates traditional fabrics as emitters and suppressors of sound. When attached to a single strand of a piezoelectric fiber actuator, a silk fabric emits up to 70 dB of sound. Despite the complex fabric structure, vibrometer measurements reveal behavior reminiscent of a classical thin plate. Fabric pore size relative to the viscous boundary layer thickness is found—through comparative fabric analysis—to influence acoustic‐emission efficiency. Sound suppression is demonstrated using two distinct mechanisms. In the first, direct acoustic interference is shown to reduce sound by up to 37 dB. The second relies on pacifying the fabric vibrations by the piezoelectric fiber, reducing the amplitude of vibration waves by 95% and attenuating the transmitted sound by up to 75%. Interestingly, this vibration‐mediated suppression in principle reduces sound in an unlimited volume. It also allows the acoustic reflectivity of the fabric to be dynamically controlled, increasing by up to 68%. The sound emission and suppression efficiency of a 130 µm silk fabric presents opportunities for sound control in a variety of applications ranging from apparel to transportation to architecture.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivatives
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1002/adma.202313328
