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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/80511完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 江宏仁(Hong-Ren Jiang) | |
| dc.contributor.author | Ching Liang | en |
| dc.contributor.author | 梁靖 | zh_TW |
| dc.date.accessioned | 2022-11-24T03:08:15Z | - |
| dc.date.available | 2021-11-03 | |
| dc.date.available | 2022-11-24T03:08:15Z | - |
| dc.date.copyright | 2021-11-03 | |
| dc.date.issued | 2021 | |
| dc.date.submitted | 2021-10-27 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/80511 | - |
| dc.description.abstract | 由於應變感測器受力變形後電訊號會發生變化，可藉由判讀電訊號來偵測變形情況。而在過去感測器的研究中，常常探討其對壓力的靈敏度或內部結構對電訊號的影響。由於聚合物具有柔軟特性，本研究將多壁奈米碳管作為導電填料與其混合，製作成應變感測器。為了提高感測器變形時結構接觸對電阻的影響，本研究透過模具設計，翻模出具有不同重複性結構的CNT/PDMS複合材料，利用此複合材料變形時結構的接觸來控制電阻響應。除此之外，本研究也使用有限元素分析軟體COMSOL模擬變形後幾何並計算電阻，驗證實驗結果。 為了提高感測器機械與電性質的可設計性，本研究使用光固化3D列印來製作模具，利用模具翻模出具有不同表面結構的CNT/PDMS，並以三種變形模式進行電阻量測。 在彎曲模式中，在矩形平板上設計重複性三角形、重複性梯形及具間隔之三角形，量測平板彎曲時的電阻。藉由彎曲時不同表面結構的接觸情形來產生不同電阻響應。 在壓縮模式中，在單一六邊形、重複性六邊形內設計不同曲率結構，量測六邊形壓縮時的電阻。藉由不同曲率的接觸面積變化來產生不同電阻響應。 在拉伸模式中，在單一六邊形內設計不同梯形結構，藉由拉伸使結構碰觸並量測電阻。 本研究藉由設計不同結構獲得不同之電阻-變形響應。在彎曲模式中，具重複性三角形之平板電阻呈線性下降；具重複性梯形之平板電阻於小變形線性下降，並在大變形趨緩；具間隔三角形之平板電阻呈現類似開關切換on/off之特性。在壓縮模式中，結構的曲率越小，樣本的電阻變化幅度越大，並且將單一六邊形重複排列也有相同結果。在拉伸模式中，藉由不同梯形結構使電阻在小變形或大變形時切換，同時也類似開關特色。實驗結果也與模擬相似。本研究藉由三種變形模式進行感測，透過設計各種結構，當感測器變形時產生不同的接觸情形來控制電阻-變形響應，期望能提升感測器的可設計性。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2022-11-24T03:08:15Z (GMT). No. of bitstreams: 1 U0001-1510202115523500.pdf: 9206709 bytes, checksum: 26bb55ee57c3a08ddeec309186fa0220 (MD5) Previous issue date: 2021 | en |
| dc.description.tableofcontents | 致謝 i 摘要 ii Abstract iii 目錄 v 圖目錄 viii 表目錄 xiv 第一章 緒論 1 1.1 前言 1 1.2 軟性電子皮膚 2 1.3 文獻回顧 5 1.3.1 壓敏性質 5 1.3.2 重複性結構 8 1.3.3 接觸效應對電阻的影響 11 1.4 研究動機 14 第二章 實驗原料及儀器表 15 2.1 實驗原料 15 2.1.1 光固化樹脂 15 2.1.2 多壁奈米碳管 15 2.1.3 聚二甲基矽氧烷 16 2.1.4 正己烷 17 2.1.5 石墨粉 17 2.2 儀器表 18 第三章 實驗步驟 19 3.1 複合材料製作方式 19 3.1.1 模具製作 19 3.1.2 電阻感測器製作 20 3.2 CNT/PDMS性質量測 22 3.2.1 量測楊氏模數 22 3.2.2 量測導電率 22 3.2.3 量測壓敏係數 23 3.3 具有不同結構之矩形試片在彎曲變形下之電阻變化 24 3.4 具有不同曲率之單一六邊形在壓縮變形下之電阻變化 26 3.5 具有不同曲率之重複性六邊形在壓縮變形下之電阻變化 27 3.6 具有不同表面結構之六邊形在拉伸變形下之電阻變化 28 第四章 數值模擬運算模型 29 4.1 數值模擬運算模組 29 4.2 獲取變形後幾何 29 4.2.1 統御方程式 29 4.2.2 邊界條件設定 30 4.2.3 網格設定 32 4.2.4 計算方式及輸出變形後幾何 34 4.2.5 其他相關參數設定 35 4.3 計算電阻 36 4.3.1 統御方程式 36 4.3.2 邊界條件設定 36 4.3.2 網格設定及驗證 37 第五章 實驗結果與討論 48 5.1 模具製作成品 48 5.2 電阻感測器製作成品 50 5.3 CNT/PDMS性質量測 53 5.3.1 量測楊氏模數 53 5.3.1 量測電導率 53 5.3.2 量測壓敏係數 53 5.4 不同電阻感測器之試驗結果 56 5.4.1 具有不同結構之矩形試片在彎曲變形下之電阻變化 56 5.4.2 具有不同曲率之單一六邊形在壓縮變形下之電阻變化 69 5.4.3 具有不同曲率結構之重複性六邊形在壓縮變形下之電阻變化 77 5.4.4 具有不同表面結構之六邊形在拉伸變形下之電阻變化 78 第六章 結論與未來展望 84 參考文獻 85 | |
| dc.language.iso | zh-TW | |
| dc.subject | COMSOL | zh_TW |
| dc.subject | 奈米碳管 | zh_TW |
| dc.subject | 3D列印 | zh_TW |
| dc.subject | 可設計性 | zh_TW |
| dc.subject | 應變感測器 | zh_TW |
| dc.subject | 複合材料 | zh_TW |
| dc.subject | carbon nanotube | en |
| dc.subject | strain sensor | en |
| dc.subject | designability | en |
| dc.subject | 3D printing | en |
| dc.subject | COMSOL | en |
| dc.subject | composite | en |
| dc.title | 接觸效應在可設計外型CNT/PDMS複合材料壓阻感測元件之研究 | zh_TW |
| dc.title | Contact effect in shape-designable piezoresistive sensing element of CNT/PDMS composite | en |
| dc.date.schoolyear | 109-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蔡日強(Hsin-Tsai Liu),陳志鴻(Chih-Yang Tseng) | |
| dc.subject.keyword | 奈米碳管,3D列印,可設計性,應變感測器,複合材料,COMSOL, | zh_TW |
| dc.subject.keyword | carbon nanotube,3D printing,designability,strain sensor,composite,COMSOL, | en |
| dc.relation.page | 88 | |
| dc.identifier.doi | 10.6342/NTU202103755 | |
| dc.rights.note | 同意授權(限校園內公開) | |
| dc.date.accepted | 2021-10-28 | |
| 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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