Published November 2021 | Version v1
Journal article Metadata-only

Tunable acoustic waveguide based on a magnetorheological fluid filling

Creators

  • 1. Department of Mechanics and Engineering Science, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, Gansu (China)

Description

A novel phononic crystals (PnCs) structure that comprises periodically arranged hollow pillars filled with magnetorheological fluid (MRF) is fabricated by three-dimensional printing. The dispersion relations and transmission characteristics of the PnCs filled with MRF are numerically calculated using the finite element method and verified by experiment. Additionally, straight and bent type waveguides are fabricated. The results show that the MRF filling can control the frequency range at the bandgap and passband of the PnCs plate. The bandgap frequency range shifts to a lower frequency when an external magnetic field is applied. (author)

Availability note (English)

Available from DOI: https://doi.org/10.35848/1882-0786/ac2a59

Additional details

Identifiers

DOI
10.35848/1882-0786/ac2a59;

Publishing Information

Journal Title
Applied Physics Express (Online)
Journal Volume
14
Journal Issue
11
Journal Page Range
p. 116501.1-116501.4
ISSN
1882-0786

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
53116577
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
3D PRINTING; ACOUSTICS; BLOCH THEORY; COMPOSITE MATERIALS; ELASTICITY; ELECTRIC FIELDS; FINITE ELEMENT METHOD; FREQUENCY RANGE; MAGNETIC FIELDS; NUMERICAL ANALYSIS; PHONONS; POISSON RATIO; RESONANCE; TRANSMISSION; WAVEGUIDES
Descriptors DEC
CALCULATION METHODS; COMPUTER-AIDED FABRICATION; DIMENSIONLESS NUMBERS; FABRICATION; MATERIALS; MATHEMATICAL SOLUTIONS; MATHEMATICS; MECHANICAL PROPERTIES; NUMERICAL SOLUTION; QUASI PARTICLES

Optional Information

Notes
31 refs., 5 figs.