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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 吳東諭 | zh_TW |
| dc.contributor.advisor | Tung-Yu Wu | en |
| dc.contributor.author | 李奕承 | zh_TW |
| dc.contributor.author | Yi-Chen Lee | en |
| dc.date.accessioned | 2025-09-17T16:13:52Z | - |
| dc.date.available | 2025-09-18 | - |
| dc.date.copyright | 2025-09-17 | - |
| dc.date.issued | 2025 | - |
| dc.date.submitted | 2025-08-06 | - |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/99639 | - |
| dc.description.abstract | 如何減少地震所帶來的災害和損失，一直是位於環太平洋火山地震帶的台灣所要面對的重要課題，隨著時代的演進抗震技術也日趨成熟。近幾年地震超材料(Seismic Metamaterials)作為新型的減震技術逐漸受到學術與工程界的重視，透過特殊的設計與排列方式，可以形成特定頻率波傳無法通過之屏障，進而使人們能在不改變既有建築物的狀況下建立防止地震波傳入之保護區。然而過往地震超材料相關研究主要面對的都是點波源抑或是固定頻率之波傳，難以貼近真實地震波之特性，故本研究旨在透過實驗室地震之製造地震方法，將其作為地震超材料所要面對之波傳，並且觀察超材料在面對地震波之表現。
本篇研究首先透過數值模擬的方式設計超材料單元，使其尺寸和頻率帶隙(Band Gap)適合實驗室地震設備尺寸及其地震波頻率，後續進行排數分析證實其面對帶隙頻率內之波傳確實能產生折減。完成設計後再透過數值模擬重現文獻中實驗室地震實驗，再將本研究所設計之樁型地震超材料至於其中觀察其對波傳行為的影響。最後再透過3D列印技術製作出矽膠樁型地震超材料試體，首先進行落球實驗證實其對非固定頻率之波傳也能在帶隙範圍內產生折減，後續進行與文獻相似之斷層面實驗並且透過不一樣的配置皆證明樁型地震超材料在面對近斷層之地震波也能降低帶隙範圍內之波傳。 綜合以上模擬與實驗結果，樁型地震超材料在面對真實地震波具有減震之潛力，未來若能進行更多相關模擬以及大規模實驗證明地震超材料之可行性，即可進一步提升地震工程技術，減輕地震所帶來的損害。 | zh_TW |
| dc.description.abstract | Reducing the damage and losses caused by earthquakes has long been a critical challenge for Taiwan, located in the seismically active Pacific Ring of Fire. With the advancement of time, seismic-resistant technologies have gradually matured. In recent years, seismic metamaterials have emerged as a novel passive vibration control technology, gaining increasing attention from both academia and engineering practice. Through specific designs and periodic arrangements, these materials can form frequency-dependent wave-blocking zones, preventing seismic waves from propagating through certain frequency ranges. This enables the creation of protected zones without modifying existing structures. However, most previous studies have focused on point sources or fixed-frequency waves, which do not accurately represent the characteristics of real earthquake ground motions. Therefore, this study employs a laboratory earthquake system to replicate near-real earthquake conditions and examines the performance of seismic metamaterials under such wave propagation scenarios.
The study first utilizes numerical simulations to design metamaterial units with dimensions and band gap frequencies compatible with the laboratory seismic system. The row test is then conducted to evaluate the wave attenuation performance for different numbers of metamaterial rows, confirming their effectiveness within the target band gap range. Subsequently, the designed pile-type seismic metamaterial is integrated into a finite element model replicating a previously published laboratory fault simulation to observe its influence on seismic wave propagation. In the experimental stage, silicone-based pile-type metamaterials are fabricated using 3D printing technology. The ball drop experiments confirm their ability to attenuate non-monochromatic waves within the band gap. Further near-fault laboratory earthquake experiments using various configurations also demonstrate that the metamaterials can effectively reduce wave transmission in the specified frequency range. In conclusion, both simulation and experimental results indicate that pile-type seismic metamaterials possess the potential to mitigate seismic waves under realistic conditions. Future research involving larger-scale models and field simulations may further verify their feasibility and contribute to the development of advanced seismic protection strategies. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2025-09-17T16:13:52Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2025-09-17T16:13:52Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 誌謝 i
摘要 ii ABSTRACT iii 目 次 v 圖 次 viii 表 次 xii 第一章 緒論 1 1.1 研究背景與動機 1 1.2 研究流程與目的 2 1.3 本文架構 2 第二章 文獻回顧 4 2.1 超材料發展 4 2.2 超材料理論 7 2.2.1 晶體(Crystal)[17] 7 2.2.2 正晶格與倒晶格(Reciprocal Lattice)[17] 7 2.2.3 布洛赫定理(Bloch’s Theorem) 7 2.2.4 布里淵區(Brillouin Zones)[17] 8 2.2.5 局部共振(Local Resonance)[16] 9 2.2.6 機械阻抗(Mechanical Impedance)[20] 10 2.3 實驗室地震發展 11 2.3.1 地震的形成 11 2.3.2 黏滑現象(Stick-Slip) 11 2.3.3 地震相關經驗公式 12 2.3.4 震源模型(Earthquake Source Model) 12 2.3.5 落球實驗(Ball Drop Test) 14 2.3.6 實驗室地震(Laboratory Earthquake) 14 2.4 文獻回顧之啟發 16 第三章 超材料之有限元素數值模擬 43 3.1 有限元素軟體簡介 43 3.1.1 COMSOL 介紹 43 3.1.2 週期性邊界條件 (Periodic Boundary Condition) 43 3.1.3 低反射邊界條件 (Low Reflecting Condition) 44 3.2 超材料單元初步設計 44 3.2.1 超材料單元頻散分析模型設定與邊界條件 44 3.2.2 超材料單元頻散曲線 45 3.3 排數分析 46 3.3.1 超材料結構二維時間域分析之設定與邊界條件 46 3.3.2 超材料結構二維時間域分析結果與帶隙 47 第四章 實驗室地震模擬 56 4.1 實驗室地震模型 56 4.1.1 實驗室地震模型設置 56 4.1.2 模型驗證 57 4.2 樁型地震超材料與實驗室地震之有限元素分析 57 4.2.1 樁型地震超材料與實驗室地震模型設定 57 4.2.2 樁型地震超材料與實驗室地震模型結果 58 4.3 模擬結果討論 58 第五章 實驗室地震實驗 67 5.1 超材料試體製作與頻散曲線 67 5.2 落球實驗 67 5.2.1 落球實驗配置 67 5.2.2 落球實驗結果 68 5.3 地表樁型地震超材料與斷層面實驗 68 5.3.1 地表樁型地震超材料與斷層面實驗配置 68 5.3.2 地表樁型地震超材料與斷層面實驗結果 69 5.4 地下樁型地震超材料與斷層面實驗 70 5.4.1 地下樁型地震超材料與斷層面實驗配置 70 5.4.2 地下樁型地震超材料與斷層面實驗結果 70 第六章 結論與未來展望 100 6.1 本文結論 100 6.1.1 超材料設計結論 100 6.1.2 實驗室地震與超材料結合結論 100 6.2 未來展望 101 參考文獻 103 | - |
| dc.language.iso | zh_TW | - |
| dc.subject | 有限元素法 | zh_TW |
| dc.subject | 樁型地震超材料 | zh_TW |
| dc.subject | 黏滑現象 | zh_TW |
| dc.subject | 實驗室地震 | zh_TW |
| dc.subject | 局部共振 | zh_TW |
| dc.subject | Finite element analysis | en |
| dc.subject | Laboratory earthquake | en |
| dc.subject | Stick-slip | en |
| dc.subject | Local resonance | en |
| dc.subject | Pile-type seismic metamaterials | en |
| dc.title | 樁型地震超材料面對近斷層之實驗與可行性研究 | zh_TW |
| dc.title | Experimental and Feasibility Study on Pile-Type Seismic Metamaterials Under Near-Fault Conditions | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 113-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 張國鎮;汪向榮;柯俊宇 | zh_TW |
| dc.contributor.oralexamcommittee | Kuo-Chun Chang;Shiang-Jung Wang;Chun-Yu Ke | en |
| dc.subject.keyword | 樁型地震超材料,有限元素法,局部共振,實驗室地震,黏滑現象, | zh_TW |
| dc.subject.keyword | Pile-type seismic metamaterials,Local resonance,Finite element analysis,Laboratory earthquake,Stick-slip, | en |
| dc.relation.page | 107 | - |
| dc.identifier.doi | 10.6342/NTU202504008 | - |
| dc.rights.note | 同意授權(限校園內公開) | - |
| dc.date.accepted | 2025-08-12 | - |
| dc.contributor.author-college | 工學院 | - |
| dc.contributor.author-dept | 土木工程學系 | - |
| dc.date.embargo-lift | 2030-08-06 | - |
| 顯示於系所單位： | 土木工程學系 | |
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