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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/67079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 | Po-Jung Chen | en |
| dc.contributor.author | 陳柏戎 | zh_TW |
| dc.date.accessioned | 2021-06-17T01:19:19Z | - |
| dc.date.available | 2022-09-07 | |
| dc.date.copyright | 2017-09-07 | |
| dc.date.issued | 2017 | |
| dc.date.submitted | 2017-08-11 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/67079 | - |
| dc.description.abstract | 本研究之內容為可調式熱超穎材料概念之提出，結合拉脹性旋轉方塊之變形機制使原本僅具單一功能之熱超穎材料可達到功能性上的轉換，進而實現具可調功能的熱超穎材料。探討方式以熱超穎材料中最普遍之課題，熱遮蔽裝置，作為可調控功能之研究，經由外力的施加使其能由熱遮蔽裝置轉換為熱集中裝置。其中以商用有限元素軟體進行分析模擬，探討本研究所提出之可調式熱遮蔽-集中裝置其可調性與功能性，亦透過熱傳實驗觀察試體之溫度分佈，並與模擬進行相互印證。本研究提出之可調式熱遮蔽-集中裝置，可調控其內部區域之溫度梯度變化，此外並提出一得到原熱超穎材料轉換後其功能性之方法，作為後續相關研究之使用。 | zh_TW |
| dc.description.abstract | By combining the rotating squares with auxetic property, this study proposed a concept of thermal metamaterials with tunable functionalities. Here we introduce such thermal metamaterial, which can change from a cloak to a concentrator when the metamaterial are subjected to external forces. The proposed dual functional metamaterial can thermally protect a region and transform into a concentrator to focus heat flux in a small region, in both simulation and experimental verification using finite element method and fabricated structures made form copper, epoxy and rotating squares. This work paves the way for a controllable gradient of heat, and also provides guidance for other thermal metamateriasls with tunable functionalities. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T01:19:19Z (GMT). No. of bitstreams: 1 ntu-106-R04525077-1.pdf: 9941895 bytes, checksum: 9e8c4e2f8fcc13264ef8d9064fda0576 (MD5) Previous issue date: 2017 | en |
| dc.description.tableofcontents | 誌謝.................................................................................................................................... i
中文摘要........................................................................................................................... ii 英文摘要.......................................................................................................................... iii 目錄.................................................................................................................................. iv 圖目錄.............................................................................................................................. vi 表目錄............................................................................................................................ xiii 第一章 簡介 1 1.1動機....................................................................................................................... 1 1.2研究背景............................................................................................................... 1 1.3研究目的 4 1.4重要性與貢獻 5 1.5名詞對照與符號說明 5 第二章 文獻探討 7 2.1熱遮蔽裝置 9 2.2熱集中裝置 11 2.3熱擾亂裝置 14 2.4熱旋轉裝置 16 2.5可調功能熱超穎材料 17 2.6拉脹性超穎材料 20 第三章 方法 21 3.1研究架構流程 21 3.2轉換熱學 22 3.3可調式熱遮蔽-集中裝置設計 32 3.4有限元素數值模擬 38 3.5熱傳實驗 44 第四章 結果 52 4.1熱傳模擬結果 52 4.2熱傳實驗結果 70 第五章 討論 72 5.1理論模型、等效模型與實驗量測結果比較 72 5.2裝置單元結構數比較 77 5.3實驗量測討論 80 第六章 結論與未來展望 83 6.1結論..................................................................................................................... 83 6.2未來展望............................................................................................................. 84 參考文獻......................................................................................................................... 87 | |
| dc.language.iso | zh-TW | |
| dc.subject | 轉換熱學 | zh_TW |
| dc.subject | 熱超穎材料 | zh_TW |
| dc.subject | 熱遮蔽 | zh_TW |
| dc.subject | 熱集中 | zh_TW |
| dc.subject | 拉脹性 | zh_TW |
| dc.subject | Thermal cloak | en |
| dc.subject | Thermal concentrator | en |
| dc.subject | Transformation thermodynamics | en |
| dc.subject | Thermal metamaterials | en |
| dc.subject | Auxetic | en |
| dc.title | 拉脹性方塊於可調功能熱超穎材料之實現 | zh_TW |
| dc.title | Realization of Thermal Metamaterials with Tunable Functionalities by Auxetic Squares | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 105-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 宋家驥(Chia-Chi Sung),李佳翰(Jia-Han Li),陳 洵毅(Hsun-Yi Chen) | |
| dc.subject.keyword | 轉換熱學,熱超穎材料,熱遮蔽,熱集中,拉脹性, | zh_TW |
| dc.subject.keyword | Transformation thermodynamics,Thermal metamaterials,Thermal cloak,Thermal concentrator,Auxetic, | en |
| dc.relation.page | 89 | |
| dc.identifier.doi | 10.6342/NTU201703054 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2017-08-11 | |
| 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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