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系統識別號 U0026-2707201611024100
論文名稱(中文) 雙邊貼附壓電材料片之Timoshenko樑的電能儲存電路設計
論文名稱(英文) Circuit Design of Storing Energy through Timoshenko Beam with Bilateral Surface Mounted Piezoelectric Layers
校院名稱 成功大學
系所名稱(中) 工程科學系
系所名稱(英) Department of Engineering Science
學年度 104
學期 2
出版年 105
研究生(中文) 呂淳龍
研究生(英文) Chun-Lung Lu
學號 N96031041
學位類別 碩士
語文別 中文
論文頁數 85頁
口試委員 指導教授-王榮泰
口試委員-周榮華
口試委員-陳蓉珊
中文關鍵字 壓電材料  電路設計  有限元素法 
英文關鍵字 Timoshenko beam  Finite element method 
學科別分類
中文摘要 壓電材料的應用越來越廣泛,但其產生的效能及效率還不足以顛覆目前能源利用的型態,為了達到此目標至今仍有許多研究在如何有效收集能量及改善電路設計。
本研究是針對一根附有上下壓電片的Timoshenko樑,首先以有限元素法探討此懸臂樑承受外力作用所呈現的動態行為,再設計一個有效的充電電路將壓電片產生的電能有效的儲存起來,最後根據理論成果分與實作成果作驗證,討論貼附位置對電壓產生的影響。
當此樑受到外力作用時,上下表面貼附的壓電片會因為變形的作用產生機械能轉換電能的行為,此電能為一交流電源,為了使其應用在廣泛電器裝置中,本研究設計一組電路將產生的交流電經過一系列轉換,最後達到一般電器中使用的標準。
英文摘要 A pair of piezoelectric sheets collocated bond on the Timoshenko beam is presented in the study. The finite element method is adopted to investigate the dynamic behavior of this Timoshenko beam subjected to an external force. An effective charging circuit is designed to store the electrical energy generated from the piezoelectric sheet. The results obtained from theoretic calculations will be compared with the actual measurements. Furthermore, the effects of attached position on the generated voltage will also be discussed.


Keywords: Timoshenko beam, Finite element method
論文目次 摘要 I
EXTEND ABSTRACT II
INTRODUCTION III
MATERIAL &METHOD III
RESULT & DISCUSSION IV
CONCLUSION VII
致謝 VIII
圖目錄 XIV
第一章 緒論 1
1-1研究動機 1
1-2 研究目的 2
1-3 文獻回顧 3
1-4 論文架構 5
第二章 壓電材料樑之運動方程式分析 6
2-1 壓電材料樑之原理說明 6
2-1-1 壓電材料模型設定 7
2-1-2 模型之位移函數 7
2-2 線性壓電理論 8
2-3 壓電材料樑之動能、應變能、電能 10
2-4 整體壓電材料樑之運動方程式 11
2-5邊界條件 13
2-6 壓電材料樑的有限元素法分析 15
2-7 壓電三明治樑的元素堆疊與自然頻率 22
2-8 壓電材料樑的感應電壓分析 23
第三章 壓電系統之相關電路介紹 25
3-1 電路架構 25
3-2 常見擷取電路架構介紹 26
3-3 整流電路 27
3-3-1 主動式整流電路 27
3-3-2 被動式整流電路 28
3-4濾波電路 33
3-4-1 電容濾波器 34
3-4-2 電阻電容濾波器(RC濾波器) 34
3-5穩壓電路 35
3-5-1串聯穩壓電路 36
3-5-2 並聯穩壓電路 37
3-5-3 穩壓器效能與定義 38
3-6 電力儲存及阻抗匹配問題 38
3-7 參考論文之壓電能量擷取電路 40
第四章 模擬結果與分析 43
4-1 材料設定與參數 43
4-1-1本研究之施力方式解析 44
4-1-2 實驗設置 44
4-2 有限元素法自然頻率 45
4-2-1 改變壓電片位置對自由端垂直方向位移的影響 46
4-2-2 動態討論下壓電片位置對垂直方向位移的影響 48
4-3 擷取電路之改良設計 50
4-3-1充電電容對電壓的影響 52
4-3-2 負載電阻對功率的影響 54
4-4 電路模擬結果與分析 56
4-4-1 理想情況下的模擬和實作分析 56
4-4-2 非理想情況下的模擬和實作分析 59
4-4-3 非理想情況下多次施力的模擬和實作分析 61
4-4-4 壓電材料對貼附位置的影響 63
第五章 結論與未來展望 70
5-1結論 70
5-2 未來展望及建議 71
參考文獻 72
附錄一 74
附錄二 77
附錄三 81
附錄四 82
附錄五 83
附錄六 85
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