Considerable interest has been devoted to the development of various classes of acoustic metamaterials. Acoustic metamaterials are those structurally engineered materials that are composed of periodic cells designed in such a fashion to yield specific material properties (density and bulk modulus) that would affect the wave propagation pattern within in a specific way. All the currently exerted efforts are focused on studying passive metamaterials with fixed material properties. In this paper, the emphasis is placed on the development of a new class of composite one-dimensional acoustic metamaterials with effective densities that are programmed to vary according to any prescribed patterns along the volume of the metamaterial. The theoretical analysis of this class of multilayered composite active acoustic metamaterials (CAAMM) is presented and the theoretical predictions are determined for an array of fluid cavities separated by piezoelectric boundaries. These smart self-sensing and actuating boundaries are used to modulate the overall stiffness of the metamaterial periodic cell and in turn its dynamic density through direct acoustic pressure feedback. The interaction between the neighboring layers of the composite metamaterial is modeled using a lumped-parameter approach. One-dimensional wave propagation as well as long wavelength assumptions are adapted in the current analysis. Numerical examples are presented to demonstrate the performance characteristics of the proposed CAAMM and its potential for generating prescribed spatial and spectral patterns of density variation. The CAAMM presents a viable approach to the development of effective acoustic cloaks that can be used for treating critical objects in order to render them acoustically invisible.
Skip Nav Destination
Article navigation
November 2012
Research-Article
Multicell Active Acoustic Metamaterial With Programmable Effective Densities
W. Akl
Design and Production Engineering Department,
Ain Shams University
,Cairo, 11571, Egypt
A. Baz
Mechanical Engineering Department,
University of Maryland
,College Park, MD 20742
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNALOF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received August 3, 2009; final manuscript received February 29, 2012; published online September 13, 2012. Assoc. Editor: Luis Alvarez.
J. Dyn. Sys., Meas., Control. Nov 2012, 134(6): 061001 (11 pages)
Published Online: September 13, 2012
Article history
Received:
August 3, 2009
Revision Received:
February 29, 2012
Citation
Akl, W., and Baz, A. (September 13, 2012). "Multicell Active Acoustic Metamaterial With Programmable Effective Densities." ASME. J. Dyn. Sys., Meas., Control. November 2012; 134(6): 061001. https://doi.org/10.1115/1.4006619
Download citation file:
Get Email Alerts
Vibration Suppression Based on Improved Adaptive Optimal Arbitrary-Time-Delay Input Shaping
J. Dyn. Sys., Meas., Control (May 2025)
Robust Fault Detection for Unmanned Aerial Vehicles Subject to Denial-of-Service Attacks
J. Dyn. Sys., Meas., Control
Vibration Suppression and Trajectory Tracking with Nonlinear Model Predictive Control for UAM Aircraft
J. Dyn. Sys., Meas., Control
Learning battery model parameter dynamics from data with recursive Gaussian process regression
J. Dyn. Sys., Meas., Control
Related Articles
Tuning of Acoustic Bandgaps in Phononic Crystals With Helmholtz Resonators
J. Vib. Acoust (June,2013)
An Active Acoustic Metamaterial With Tunable Effective Density
J. Vib. Acoust (August,2010)
Active Acoustic Metamaterial With Simultaneously Programmable Density and Bulk Modulus
J. Vib. Acoust (June,2013)
Related Proceedings Papers
Related Chapters
An Experimental Study on the Cavity Evolution of a Continuous Entry of Sphere Through a Viscous Fluid into Water
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Effects of Acoustic Parameters and Bulk Fluid Properties on Acoustic Droplet Vaporization Threshold of Perfluoropentane Droplets
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
A Review on Prediction over Pressured Zone in Hydrocarbon Well Using Seismic Travel Time through Artificial Intelligence Technique for Pre-Drilling Planing
International Conference on Software Technology and Engineering, 3rd (ICSTE 2011)