Band gap and experimental study in phononic crystals with super-cell structure
The phononic crystals (PCs) have the wide application prospects in the field of regulating sound waves and vibration reduction due to their unique band gaps (BGs) characteristics. In this paper, a new phononic crystal of which the super-cell is composed of a simple combination of traditional PCs is...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-06-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379719300762 |
| _version_ | 1811263796726988800 |
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| author | Yingjian Sun Yingjie Yu Yayu Zuo Lili Qiu Mingming Dong Jiatong Ye Jun Yang |
| author_facet | Yingjian Sun Yingjie Yu Yayu Zuo Lili Qiu Mingming Dong Jiatong Ye Jun Yang |
| author_sort | Yingjian Sun |
| collection | DOAJ |
| description | The phononic crystals (PCs) have the wide application prospects in the field of regulating sound waves and vibration reduction due to their unique band gaps (BGs) characteristics. In this paper, a new phononic crystal of which the super-cell is composed of a simple combination of traditional PCs is proposed to open BGs in low frequency range. The dispersion relations, displacement fields of eigenmodes and transmission spectra are obtained by the finite element method. Both theoretical and experimental results verify that the improved PCs obtained low-frequency BGs range from 153 Hz to 196 Hz, which is generated by the rigid body resonance. The effect of the geometrical parameters and shapes on the dispersion relations are further analysed and discussed. Finally, the experimental transmission spectrum of the improved PCs is presented by a hammer test. This study might provide theoretical and practical support to the design of PCs components in the field of low-frequency vibration reduction. Keywords: Phononic crystals, Super-cell, Vibration reduction |
| first_indexed | 2024-04-12T19:51:41Z |
| format | Article |
| id | doaj.art-0dfc0ececd644e5d9b0aa3f40ccdee68 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-12T19:51:41Z |
| publishDate | 2019-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-0dfc0ececd644e5d9b0aa3f40ccdee682022-12-22T03:18:48ZengElsevierResults in Physics2211-37972019-06-0113Band gap and experimental study in phononic crystals with super-cell structureYingjian Sun0Yingjie Yu1Yayu Zuo2Lili Qiu3Mingming Dong4Jiatong Ye5Jun Yang6School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, ChinaSchool of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, ChinaSchool of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, ChinaSchool of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China; Corresponding author.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaThe phononic crystals (PCs) have the wide application prospects in the field of regulating sound waves and vibration reduction due to their unique band gaps (BGs) characteristics. In this paper, a new phononic crystal of which the super-cell is composed of a simple combination of traditional PCs is proposed to open BGs in low frequency range. The dispersion relations, displacement fields of eigenmodes and transmission spectra are obtained by the finite element method. Both theoretical and experimental results verify that the improved PCs obtained low-frequency BGs range from 153 Hz to 196 Hz, which is generated by the rigid body resonance. The effect of the geometrical parameters and shapes on the dispersion relations are further analysed and discussed. Finally, the experimental transmission spectrum of the improved PCs is presented by a hammer test. This study might provide theoretical and practical support to the design of PCs components in the field of low-frequency vibration reduction. Keywords: Phononic crystals, Super-cell, Vibration reductionhttp://www.sciencedirect.com/science/article/pii/S2211379719300762 |
| spellingShingle | Yingjian Sun Yingjie Yu Yayu Zuo Lili Qiu Mingming Dong Jiatong Ye Jun Yang Band gap and experimental study in phononic crystals with super-cell structure Results in Physics |
| title | Band gap and experimental study in phononic crystals with super-cell structure |
| title_full | Band gap and experimental study in phononic crystals with super-cell structure |
| title_fullStr | Band gap and experimental study in phononic crystals with super-cell structure |
| title_full_unstemmed | Band gap and experimental study in phononic crystals with super-cell structure |
| title_short | Band gap and experimental study in phononic crystals with super-cell structure |
| title_sort | band gap and experimental study in phononic crystals with super cell structure |
| url | http://www.sciencedirect.com/science/article/pii/S2211379719300762 |
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