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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/49234完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 黃心豪(Hsin-Haou Huang) | |
| dc.contributor.author | Shih-Shan Lin | en |
| dc.contributor.author | 林詩珊 | zh_TW |
| dc.date.accessioned | 2021-06-15T11:20:16Z | - |
| dc.date.available | 2021-08-26 | |
| dc.date.copyright | 2016-08-26 | |
| dc.date.issued | 2016 | |
| dc.date.submitted | 2016-08-18 | |
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Sun, 'Blast-wave impact mitigation using negative effective mass density concept of elastic metamaterials,' International Journal of Impact Engineering, vol. 64, p. 20-29, 2014. [21] R. Zhu, G. L. Huang, H. H. Huang, and C. T. Sun, 'Experimental and numerical study of guided wave propagation in a thin metamaterial plate,' Physics Letters A, vol. 375, p. 2863-2867, 2011. [22] J.-S. Chen and C. T. Sun, 'Dynamic behavior of a sandwich beam with internal resonators,' Journal of Sandwich Structures and Materials, p. 2519-2529, 2011. [23] H. H. Huang and C. T. Sun, 'Locally resonant acoustic metamaterials with 2D anisotropic effective mass density,' Philosophical Magazine, vol. 91, p. 981-996, 2011. [24] R. Zhu, X. N. Liu, G. L. Huang, H.-H. Huang, and C. T. Sun, 'Microstructural design and experimental validation of elastic metamaterial plates with anisotropic mass density,' Physical Review B, vol. 86, p. 144307, 2012. [25] A. P. Liu, R. Zhu, X. N. Liu, G. K. Hu, and G. L. 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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/49234 | - |
| dc.description.abstract | 本文主要探討可調頻平面超穎材料之聲波傳遞行為。首先透過商用有限元素分析軟體進行分析模擬，針對一具拉脹性薄膜結構之超穎材料作週期性排列設定，分析其單元之能帶結構，因其結構拉脹特性，利用幾何變形將可能阻擋某些特定頻率下聲波通過，達到可調頻的效果。另外，亦透過聲學實驗觀察該特定頻率下的波傳衰減行為，並與模擬進行比較與相互映證，結果顯示該結構將能阻隔特定頻率範圍內的聲波傳遞。 | zh_TW |
| dc.description.abstract | A tunable planar auxetic metamaterial for controlling and filtering acoustic waves was investigated. In the study, the commercial finite element software package was utilized for numerical simulations. A planar auxetic structure was placed periodically, and its acoustic band structure was obtained. It was found that the bandages may appear in certain frequency range because of the geometric deformation of the auxetic structure. In addition, the wave attenuation behavior at a specific frequency was investigated experimentally, and the experimental results were compared with those obtained from numerical simulations. Both the numerical and experimental results showed that the planar auxetic structure is tunable for controlling the sound wave propagation and filtering the waves within a specific frequency range. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T11:20:16Z (GMT). No. of bitstreams: 1 ntu-105-R03525025-1.pdf: 7387613 bytes, checksum: 2b8119703c2bfba6bb88fccef5a1b706 (MD5) Previous issue date: 2016 | en |
| dc.description.tableofcontents | 口試委員會審定書 i
致謝 ii 中文摘要 iii ABSTRACT iv 目錄 v 圖目錄 vii 表目錄 xii 第1章 簡介 1 1.1 研究動機與目的 1 1.2 文獻回顧 2 1.3 論文架構 14 第2章 方法 16 2.1 研究架構流程 16 2.2 具拉脹性之單元結構 17 2.3 有限元素數值模擬 20 2.4 聲壓實驗 37 第3章 結果 54 3.1 單元結構之蒲松比 54 3.2 能帶結構模擬結果 56 3.3 頻率響應實驗結果 61 第4章 討論 82 4.1 模擬結果討論 82 4.2 實驗結果討論 84 4.3 綜合討論 93 第5章 結論與未來展望 96 5.1 結論 96 5.2 未來展望 98 參考文獻 100 | |
| dc.language.iso | zh-TW | |
| dc.subject | 可調頻 | zh_TW |
| dc.subject | 聲學超穎材料 | zh_TW |
| dc.subject | 拉脹性 | zh_TW |
| dc.subject | 頻散關係 | zh_TW |
| dc.subject | 能帶結構 | zh_TW |
| dc.subject | 波傳行為 | zh_TW |
| dc.subject | Dispersion relation | en |
| dc.subject | Band structure | en |
| dc.subject | Auxetic | en |
| dc.subject | Acoustic metamaterial | en |
| dc.subject | Tunable | en |
| dc.subject | Wave propagation | en |
| dc.title | 利用平面拉脹性超穎材料進行可調式聲波傳遞 | zh_TW |
| dc.title | Tunable Acoustic Wave Propagation using Plane Auxetic Metamaterial | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 104-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 黃維信(Wei-Shin Huang),王昭男(Chao-Nan Wang),宋家驥(Chia-Chi Sung) | |
| dc.subject.keyword | 聲學超穎材料,拉脹性,頻散關係,能帶結構,波傳行為,可調頻, | zh_TW |
| dc.subject.keyword | Acoustic metamaterial,Auxetic,Dispersion relation,Band structure,Wave propagation,Tunable, | en |
| dc.relation.page | 103 | |
| dc.identifier.doi | 10.6342/NTU201602850 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2016-08-19 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
| 顯示於系所單位： | 工程科學及海洋工程學系 | |
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| ntu-105-1.pdf 未授權公開取用 | 7.21 MB | Adobe PDF |
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