Design of tunable acoustic metamaterials through periodic arrays of resonant shunted piezos

By L. Airoldi, Massimo Ruzzene. 2011

270 citations recorded by the source corpus.

Periodic shunted piezoelectric patches are employed for the design of a tunable, one-dimensional metamaterial. The configuration considered encompasses a beam undergoing longitudinal and transverse motion, and a periodic array of piezoelectric patches with electrodes connected to a resonant electric circuit. The resulting acousto-electrical system is characterized by an internal resonant behavior that occurs at the tuning frequency of the shunting circuits, and is analogous in its operation to other internally resonating systems previously proposed, with the addition of its simple tunability. The performance of the beam is characterized through the application of the transfer matrix approach, which evaluates the occurrence of bandgaps at the tuning frequencies and estimates wave attenuation within such bands. Moreover, a homogenization study is conducted to illustrate the internal resonant characteristics of the system within an analytical framework. Experiments performed on the considered beam structure validate the theoretical predictions and illustrate its internal resonant characteristics and the formation of the related bandgaps.

Subfields: Biomedical Engineering, Cognitive Neuroscience, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/559ef950cf72cfebc12e4a438476808cd7351e79

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. Chin-teh Sun
2. Jihong Wen
3. Xisen Wen
4. Guoliang Huang
5. Yong Xiao
6. G. Wang
7. Yangyang Chen
8. Massimo Ruzzene

In Cognitive Neuroscience

1. G. Wang
2. Xisen Wen
3. Jihong Wen
4. Yong Xiao
5. Katia Bertoldi
6. G. Trainiti
7. Dennis M. Kochmann
8. Guoliang Huang

In Electronic, Optical and Magnetic Materials

1. Chin-teh Sun
2. Guoliang Huang
3. Massimo Ruzzene
4. Yangyang Chen
5. G. Hu
6. Jihong Wen
7. Xisen Wen
8. G. Wang

Citations in the corpus

• Non-reciprocal elastic wave propagation in spatiotemporal periodic structures (2016, methodology): “This technique is successfully applied in experimental validations as well [31].”
• A hybrid elastic metamaterial with negative mass density and tunable bending stiffness (2017, background): “, 2012; Airoldi and Ruzzene, 2011; Chen et al., 2013 ). The piezoelectric effect allows energy to be exchanged between the mechanical and electrical domains so that, when a piezoelectric element is shunted through an electrical circuit, it behaves as a variable stiffness element that can be used to ”
• Band Gap Control in an Active Elastic Metamaterial With Negative Capacitance Piezoelectric Shunting (2014, background): “[DOI: 10.1115/1.4028378] Keywords: active acoustic metamaterials, band gap, negative effective spring, negative capacitance piezoelectric shunting”
• Experimental study of an adaptive elastic metamaterial controlled by electric circuits (2016, background): “Airoldi and Ruzzene11 demonstrated that a one-dimensional tunable acoustic metamaterial can be made by using a simple elastic beam fitted with a periodic array of piezoelectric patches connected to resistive-inductive shunted circuits.”
• Wave propagation and attenuation in plates with periodic arrays of shunted piezo-patches (2013, background): “19) constitutes a viable solution to this problem [18].”
• Sound transmission loss of metamaterial thin plates with periodic subwavelength arrays of shunted piezoelectric patches (2015, methodology): “calculated the STL of metamaterial thin plates with multiple subwavelength arrays of attached spring–mass resonators [11], Airold and Ruzzene demonstrated the equivalent mechanical properties of a metamaterial beam with periodic arrays of resonant shunted piezoelectric patches [23].”
• Exploiting Microstructural Instabilities in Solids and Structures: From Metamaterials to Structural Transitions (2017, background): “In recent years, rationally designed periodic structures have received increasing interest also because of their ability to manipulate and control the propagation of mechanical waves [202], opening avenues for a broad range of applications such as wave guiding [203,204], cloaking [205], noise reduct”
• A review on application of mechanical metamaterials for vibration control (2021, background): “Ruzzene and Baz [106] studied the wave propagation in composite rods using Floquet’s theorem and theory of periodic structures.”