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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/30928完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 劉佩玲(Pei-Ling Liu) | |
| dc.contributor.author | " Borono,Hisamitsu" | en |
| dc.contributor.author | 劉昇 | zh_TW |
| dc.date.accessioned | 2021-06-13T02:21:21Z | - |
| dc.date.available | 2010-03-19 | |
| dc.date.copyright | 2007-05-24 | |
| dc.date.issued | 2007 | |
| dc.date.submitted | 2007-01-30 | |
| dc.identifier.citation | 1. L.Meirovitch and A.L.Hale,”A general dynamic synthesis for structures with discrete substructure,”Journal of sound and Vibration 85(4),445-457
2. Tirupathi R. Chandrupatla and A. D. Belegundu(2002)”Introduction to finite elements in engineering,” 3rdedition, Prentice Hall and Upper Saddle River Press, New Jersey 3. Young W. Kwon and Hyochong Bang(1997)”The finite element method using matlab,” CRC press, New York 4. S. Tamura, D. C. Hurley, and J. P. Wolfe ”Acousric-phonon propagation in superlattices,” Phy. Rev. B 38(2), 1427-1449 (1998) 5. M. S. Kushwaha, P. Halevi, L. Dobrzynski, and B. Djafari-Rouhani, “Acoustic Band Structure of Periodic Elastic Comopsites,” Phys. Rev. Lett. 71(13), 2022-2025 (1994) 6 .M. S. Kushwaha, P. Halevi, G. Martinez, L. Dobrzynski, and B. Djafari-Rouhani, “Theory of acoustic band structure of periodic elastic composites,” Phy. Rev. B 49(4), 2313-2322(1994) 7. M. S. Kushwaha, and P. Halevi, ”Band-gap engineering in periodic elastic composites,” Appl. Phys. Lett. 64(9), 1085-1087(1994) 8. Tsung-Tsong Wu, Zi-Gui Huang, and S. L., “Surface and bulk acoustic waves in two-dimensional phononic crystal consisting of materials with general anisotropy,” Phy. Rev. B 69,094301(2004) 9. Po-Feng Hsieh, Tsung-Tsong Wu, and Jia-Hong Sun, “Three dimensional phononic bandgap FDTD calculations using a PC cluster system,” IEEE Trans. Ulrason.,Ferroelect.,Freq. Contr(Accepted) 10. Zhengyou Liu, Xixiang Zhang, Yiwei Mao, Y. Y. Zhu, Zhiyu Yang, C. T. Chang, and Ping Sheng,”Locally resonant sonic materials,” Science 289,1734-1736(2000) 11. Zhengyou Liu, C. T. Chan, and Ping Sheng, “Three-component elastic wave band-gap material,” Phy. Rev. B 65,165116(2002) 12. Kin Ming Ho, Chun Kwong Cheng, Z. Yang, X. X. Zhang, and Ping Sheng,”Broadband locally resonant sonic shields,” appl. Phys. Lett. 83(26),5566-5568(2003) 13. Ping Sheng, X. X. Zhang, Z. Liu, C. T. Chan,”Locally resonant sonic materials,” Physica. B338, 201-205(2003) 14. Zhengyou Liu, C. T. Chan, and Ping Sheng, ”Analytic model of phononic crystals with local resonances,”Phy. Rev. B 71,014103(2005) 15. C. Goffaux, J. Sanchez-Dehesa, A. Levy Yeyati, Ph. Lambin, A. Khelif, J. O. Vasseur, and B. Djafari-Rouhani, “Evidence of Fano-Like interference Phenomena in locally resonant materials,” Appl. Phys. Lett. 88(22), 225502(2002) 16. C. Goffaux, F. Masewi, J. O. Vasseur, B. Djafari-Rouhani, and Ph. Lambin, ”Measurements and calculations of the sound attenuation by a phononic band gap structure suitable for an insulating partition application,” Appl. Phys. Lett. 83(2),281-283(2003) 17. C. Goffaux and J. Sanchez-Dehesa, “Two-dimensional phononic crystals studied using a variational method: Application to lattices of locally resonant materials,” Phy. Rev. B 67, 144301(2003) 18. C. Goffaux, J. Sanchez-Dehesa, and Ph. Lambin, ”Comparison of the sound attenuation efficiency of locally resonant materials and elastic band-gap structures,” Phy. Rev. B 70,184302(2004) 19. 吳異琛(2005),”具複合填充物二維聲子晶體之局部共振分析研究,”碩士論文, 國立台灣大學應用力學研究所 20. 趙海鷗(2003),”LS-DYNA動力分析指南,” 北京, 兵器工業出版社 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/30928 | - |
| dc.description.abstract | 當一複雜且具有週期性的結構系統做動態分析時，往往運算量會十分的龐大且耗費想當多的時間；本文對週期性結構的有限元素動態分析提供了一種簡化的方法，先將此周期性結構分成數個相同的超級元素(Superelement)，再針對超級元素做自由度的簡化，最後以特殊的接合條件結合各個超級元素，如此可得到簡化過後的結構。
接著針對三種不同材料所構成之聲子晶體做分析，經由穿射率的探討，發現此利用三種不同材料之二維聲子晶體阻隔聲波之有效機制主要為共振所造成，並找出能有效阻隔聲波的共振頻率其特徵為何；再來觀察改變結構的排列數對穿射率的影響。模擬結果顯示，透過適當的設計與安排可有效降低聲子晶體的穿射率。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2021-06-13T02:21:21Z (GMT). No. of bitstreams: 1 ntu-96-R93543024-1.pdf: 10001088 bytes, checksum: ce575efa9ee0b0fe80f4a4a313c27630 (MD5) Previous issue date: 2007 | en |
| dc.description.tableofcontents | 致謝 I
摘要 II 目錄 III 表目錄 V 圖目錄 VI 第一章 導論 1 1-1 研究動機 1 1-2 文獻回顧 2 1-3 本文內容 4 第二章 有限元素法 5 2-1 動態分析的統御方程式 5 2-2 勁度矩陣、質量矩陣 6 2-2-1 shape function 6 2-2-2 Jacobian matrix 8 2-2-3 系統應變能 9 2-3 特徵方程式系統 13 2-4 有限元素軟體介紹 14 第三章 聲子晶體穿射率分析 19 3-1穿射率分析 19 3-1-1 寬頻波源的產生 19 3-1-2 對稱邊界 21 3-2 用於低頻之聲子晶體 22 3-3 用於低頻聲子晶體的穿射率分析 23 3-4 用於低頻聲子晶體的模態分析 26 第四章 超級元素(SUPERELEMENT)分析 79 4-1 超級元素(SUPERELEMENT) 79 4-2 超級元素的接合條件 81 4-3 數值算例 83 4-3-1 一維數值算例 84 4-3-2 二維數值範例 87 4-3-3 以超級元素法分析適用於低頻聲子晶體的模態 88 第五章 結論與展望 108 5-1 結論 108 5-2 未來展望 109 參考文獻 111 | |
| dc.language.iso | zh-TW | |
| dc.subject | 動態分析 | zh_TW |
| dc.subject | 超級元素法 | zh_TW |
| dc.subject | 聲子晶體 | zh_TW |
| dc.subject | 局部共振 | zh_TW |
| dc.subject | 穿射率 | zh_TW |
| dc.subject | phononic crystals | en |
| dc.subject | local resonances | en |
| dc.subject | dynamic analysis | en |
| dc.subject | Superelement method | en |
| dc.subject | Transmissivity | en |
| dc.title | 以有限元素法分析二維聲子晶體穿射率 | zh_TW |
| dc.title | Analysis of Transmissivity in 2D Phononic Crystal Using Finite Element Method | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 95-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 郭茂坤(Mao-Kun Kuo),蔡崇道 | |
| dc.subject.keyword | 超級元素法,聲子晶體,局部共振,穿射率,動態分析, | zh_TW |
| dc.subject.keyword | Superelement method,phononic crystals,local resonances,Transmissivity,dynamic analysis, | en |
| dc.relation.page | 113 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2007-01-31 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 應用力學研究所 | zh_TW |
| 顯示於系所單位： | 應用力學研究所 | |
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