Abstract
Phononic crystals make the realization of complete acoustic band gaps possible, which suggests many applications such as vibration isolation, noise suppression, acoustic barriers, filters, wave guides, and transducers. In this paper, an analytic model, based on the transfer matrix method, is developed to study the band structures of bulk acoustic waves including SH-, P-, and SV-waves in a one-dimensional phononic crystal, which is formed by alternating strips of two different materials. The analysis is demonstrated by the phononic crystal of Ba0.7Sr0.3TiO3 (BST) and polybutylene terephthalate (PBT), whose elastic properties depend strongly on the temperature. The results show that some band gaps are very sensitive to the temperature. Depending on the wave mode, the center frequency of the first band gap may decrease over 25% and band gap width may decrease over 60% as the temperature increases from 30 C to 50 C. The transmission of acoustic waves in a finite phononic crystal is also studied through the coefficient of transmission power. These results are very useful for the design and optimization of thermal tuning of phononic crystals.
| Original language | English |
|---|---|
| Article number | 041008-1 |
| Journal | Journal of Applied Mechanics, Transactions ASME |
| Volume | 81 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jan 1 2014 |
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Keywords
- Bulk wave
- Phononic crystal
- Thermal tuning
- Transfer matrix method
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics
Cite this
Thermal tuning of band structures in a one-dimensional phononic crystal. / Bian, Zuguang; Peng, Wei; Song, Jizhou.
In: Journal of Applied Mechanics, Transactions ASME, Vol. 81, No. 4, 041008-1, 01.01.2014.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermal tuning of band structures in a one-dimensional phononic crystal
AU - Bian, Zuguang
AU - Peng, Wei
AU - Song, Jizhou
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Phononic crystals make the realization of complete acoustic band gaps possible, which suggests many applications such as vibration isolation, noise suppression, acoustic barriers, filters, wave guides, and transducers. In this paper, an analytic model, based on the transfer matrix method, is developed to study the band structures of bulk acoustic waves including SH-, P-, and SV-waves in a one-dimensional phononic crystal, which is formed by alternating strips of two different materials. The analysis is demonstrated by the phononic crystal of Ba0.7Sr0.3TiO3 (BST) and polybutylene terephthalate (PBT), whose elastic properties depend strongly on the temperature. The results show that some band gaps are very sensitive to the temperature. Depending on the wave mode, the center frequency of the first band gap may decrease over 25% and band gap width may decrease over 60% as the temperature increases from 30 C to 50 C. The transmission of acoustic waves in a finite phononic crystal is also studied through the coefficient of transmission power. These results are very useful for the design and optimization of thermal tuning of phononic crystals.
AB - Phononic crystals make the realization of complete acoustic band gaps possible, which suggests many applications such as vibration isolation, noise suppression, acoustic barriers, filters, wave guides, and transducers. In this paper, an analytic model, based on the transfer matrix method, is developed to study the band structures of bulk acoustic waves including SH-, P-, and SV-waves in a one-dimensional phononic crystal, which is formed by alternating strips of two different materials. The analysis is demonstrated by the phononic crystal of Ba0.7Sr0.3TiO3 (BST) and polybutylene terephthalate (PBT), whose elastic properties depend strongly on the temperature. The results show that some band gaps are very sensitive to the temperature. Depending on the wave mode, the center frequency of the first band gap may decrease over 25% and band gap width may decrease over 60% as the temperature increases from 30 C to 50 C. The transmission of acoustic waves in a finite phononic crystal is also studied through the coefficient of transmission power. These results are very useful for the design and optimization of thermal tuning of phononic crystals.
KW - Bulk wave
KW - Phononic crystal
KW - Thermal tuning
KW - Transfer matrix method
UR - http://www.scopus.com/inward/record.url?scp=84887221176&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887221176&partnerID=8YFLogxK
U2 - 10.1115/1.4025058
DO - 10.1115/1.4025058
M3 - Article
AN - SCOPUS:84887221176
VL - 81
JO - Journal of Applied Mechanics, Transactions ASME
JF - Journal of Applied Mechanics, Transactions ASME
SN - 0021-8936
IS - 4
M1 - 041008-1
ER -