本文主旨在於利用3D繪圖軟體SolidWorks及數值分析軟體ANSYS，分析複材自行車架，找出應力集中和需要補強之處，預期可達到縮短複材車架從客戶下訂、研發到正式量產的時間，間接提高產能。
實驗方面：明安所提供其自行生產之預浸布(加強材UT500碳纖維/明安調配基材)帶回，利用MTS及熱壓機等實驗儀器，配合ASTM D3039規範求出複材σ1、σ2值並繪製成應力-應變圖及統計表，實驗成果得之材料常數E11為151.55 GPa、E22為7.654GPa。
模擬方面：利用實驗出來的E11、E22帶入ANSYS，並配合明安車架及前叉測試規範，繪製出應力及變形圖，並針對圖中應力集中部分給予補強。前叉補強成果：正向剛性測試變型量由12.89mm改進為9.45mm，側向剛性測試變形量由13mm大幅改進成0.97mm。車架補強成果：雙邊剛性測試變形量由11.7mm改進為6.6mm，單變剛性測試變形量改進後為12.5mm，頭管剛性為0.46mm，由於已達到標準因此無補強。
關鍵字：數值分析、自行車架、預浸布、應力集中

The positions of high stress concentration in a bicycle frame structure made in composite materials and a way to strengthen them were investigated via SolidWorks and ANSYS, 3D picture plotting software, and numerical simulation software, respectively. The capability of productivity will be improved indirectly due to the shortening of the time in the process of customers’ order, research, development and mass production.

In experiment, prepreg tape (TOHO UT500 carbon fiber/AD. Group matrix) which were produced by AD. Group were made into laminates by hot-pressing machine. The material constants of the laminate and the stress-strain diagram were obtained according to the stander of ASTM D3039. The received material constants are E11 =151.55 GPa and E22 = 7.654 GPa, respectively.

In simulation, the experimental data E11 and E22 were used in the numerical analysis, and obtained the stress and deformation fields of the bicycle frame structure and the front fork were plotted based on the standards provided by AD. Group. Reinforcements were made according to the positions of stress concentration in the diagrams. The results of improvements of the front fork after reinforcement include： the deformation of normal rigidity was improved to 9.45mm from 12.89mm, and the lateral deformation was significantly improved to 0.97mm from 13mm. Other improvements of the frame structure after reinforcement contain the deformation: dual-side rigidity was improved to 6.6mm from 11.7mm, and the deformation of single-side rigidity was improved to 12.5mm. The rigidity of the head lug was 0.46mm and there is no need to reinforce it because it was meets requirements.

Keywords: Numerical analysis, bicycle frame, prepreg, stress concentration.

目錄 Ⅰ
表目錄 Ⅳ
圖目錄 Ⅴ
中文摘要 ⅩⅠ
英文摘要 ⅩⅠⅠ

第一章 序論 1
1-1 前言 1
1-2 明安複合材料概述 2
1-3 研究方向 3
1-4 文獻回顧 4

第二章 實驗 8
2-1 實驗目的 8
2-2 明安複材試片的分組和製作 9
2-3 壓製完成的積層板規格及上機試片規格 10
2-4 儀器設備介紹 11
2-5 實驗結果 12

第三章 電腦模擬 24
3-1 電腦模擬規劃 24
3-2 電腦模擬程序和步驟 25
3-3 前叉電腦模擬結果 29
3-4車架電腦模擬程序與結果 30
3-4.1模擬前計畫 30
3-4.2 模擬前期處理 31
3-4.3 模擬中期與結果 32

第四章 結果與討論 79
4-1 實驗結果討論 79
4-2 前叉模擬結果討論 80
4-2.1前叉正向剛性測試模擬結果討論 81
4-2.2前叉側向剛性測試模擬結果討論 81
4-3 車架模擬結果討論 82
4-3.1 車架單、雙邊剛性測試模擬結果討論 82
4-3.2 車架頭管剛性測試模擬結果討論 82
4-4 破壞預測及討論 83

第五張 結論與建議 85
5-1 結論 85
5-2 建議 86

參考文獻 91

附件一
明安提供TOHO纖維物性表 93
附件二
明安提供車架強度測試標準資料 94

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