Next Article in Journal
Structure Inheritance in Nanoparticle Ink Direct-Writing Processes and Crack-Free Nano-Copper Interconnects Printed by a Single-Run Approach
Previous Article in Journal
Biomechanical Loading Comparison between Titanium and Unsintered Hydroxyapatite/Poly-L-Lactide Plate System for Fixation of Mandibular Subcondylar Fractures
Article Menu
Issue 9 (May-1) cover image

Export Article

Open AccessArticle

Mutual Inductance and Coupling Effects in Acoustic Resonant Unit Cells

Department of Applied Physics, Northwestern Polytechnical University, Xi’an 710129, China
*
Authors to whom correspondence should be addressed.
Materials 2019, 12(9), 1558; https://doi.org/10.3390/ma12091558
Received: 19 March 2019 / Revised: 9 May 2019 / Accepted: 10 May 2019 / Published: 13 May 2019
(This article belongs to the Special Issue Advances in Acoustic Metamaterials)
  |  
PDF [3291 KB, uploaded 13 May 2019]
  |  

Abstract

We present an acoustic metamaterial (AMM) consisting of a dumbbell-shaped split hollow sphere (DSSHS). Transmission results of experiments and simulations both presented a transmitted dip at the resonant frequency of AMM, which demonstrated its negative modulus property. As the two split holes in the DSSHS had strong coupling effects for the acoustic medium in the local region, the dip could be simply manipulated by tuning the distance between the split holes. When the distance was large enough, the mutual inductance tended to disappear, and a weak interaction existed in the structure. According to the property of weak interaction, a multiband AMM and a broadband AMM with a negative modulus could be achieved by arraying DSSHS clusters with different distances. Furthermore, mutual inductance and coupling in DSSHS reinforced the local resonance, and this kind of cell could be used to design the acoustic metasurface to abnormally control the refractive waves. View Full-Text
Keywords: mutual inductance; dumbbell-shaped split hollow sphere (DSSHS); acoustic metamaterial (AMM); acoustic metasurface (AMS); broadband mutual inductance; dumbbell-shaped split hollow sphere (DSSHS); acoustic metamaterial (AMM); acoustic metasurface (AMS); broadband
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Ding, C.; Dong, Y.; Song, K.; Zhai, S.; Wang, Y.; Zhao, X. Mutual Inductance and Coupling Effects in Acoustic Resonant Unit Cells. Materials 2019, 12, 1558.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top