| Influence of embedded cell on formation of broad acoustic band-gap in the three-component crystal slab |
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| 作者姓名： | HUA Ji ZHANG Shu CHENG Jianchun |
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| 作者单位： | State Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China |
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| 基金项目： | Supported by the National Fund for Distinguished Young Scholars (Grant No. 10125417)
the Major State Basic Research Development Program of China (Grant No. 51307) |
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| 摘 要： | The influence of embedded cell on the formation of broad acoustic band-gap in the three-component crystal slab is analyzed by calculating the acoustic transmitted energy of the epoxy resin matrix with one embedded cell, which consists of the elastically soft rubber coat and the inner core steel cylinder. It is found that the broad band-gap in the three-component crystal slab results from localization of the acoustic wave energy in the rubber coat for a broad ultrasonic frequency interval. Comparison between experiments and calculations shows good agreement.
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| 关 键 词： | acoustic band-gap three-component system embedded cell. |
Influence of embedded cell on formation of broad acoustic band-gap in the three-component crystal slab |
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| HUA Ji,ZHANG Shu,CHENG Jianchun.Influence of embedded cell on formation of broad acoustic band-gap in the three-component crystal slab[J].Progress in Natural Science,2005,15(10):956-960. |
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| Authors: | HUA Jia ZHANG Shu CHENG Jianchun |
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| Institution: | State Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China |
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| Abstract: | The influence of embedded cell on the formation of broad acoustic band-gap in the three-component crystal slab is analyzed by calculating the acoustic transmitted energy of the epoxy resin matrix with one embedded cell, which consists of the elastically soft rubber coat and the inner core steel cylinder. It is found that the broad band-gap in the three-component crystal slab results from localization of the acoustic wave energy in the rubber coat for a broad ultrasonic frequency interval. Comparison between experiments and calculations shows good agreement. |
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| Keywords: | acoustic band-gap three-component system embedded cell |
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