臺灣博碩士論文加值系統

本論文研究的目的主為提供更舒適自行車後避震器製程參數最佳化。自行車的後避震器系統主要透過阻尼活塞的孔徑大小設計、油門片厚度、數量及高壓氮氣的氣壓值大小等關鍵因子，再透過震動阻尼系統與液壓油阻尼迴路設計來控制後避震器的避震功能。本研究將組裝完成的後避震器產品，置於動態測試設備上進行測試在收集相關測試數據。針對再高、低速下壓縮阻尼及回彈阻尼的各別品質水準參數。再透過田口及灰關聯理論統計分析，找出最佳因子組合參數資料。提供產品設計工程師參考資料並建立相關設計規範，並設計出最符合客戶產品規格後避震器。經最終實際實驗測試後得到一組A3B1C2D1最佳因子組合此參數數值範圍分別為，低速壓縮阻尼值912.0~934.0N、高速壓縮阻尼值1196.0~1278.0N、低速回彈阻尼值-542.0~-556.0N、高速回彈阻尼-1187.0~1249.0N。另外因子組合中A代表活塞孔洞、B代表壓縮油門片規格、C代表回彈油門片組合、D代表高壓氮氣大小。

The main purpose of this paper is to provide a more comfortable bicycle rear shock absorber process parameter optimization. The shock absorber of the bicycle mainly controls the rear suspension through the design of the aperture size of the damping piston, the thickness and quantity of the shims, and the pressure value of the high-pressure nitrogen gas, and then through the design of the high/low-speed compression and rebound damping circuit In this study, the assembled rear shock absorber product is placed on the dynamic test equipment for testing and the relevant test data of individual quality level parameters for compression damping and rebound damping at high and low speeds are collected. Then through the statistical analysis of Taguchi and grey relational theory, the optimal combination parameter is found. The result helps provide good reference materials for product design engineers to establish relevant design specifications for rear shock absorbers that best meet customer needs.
In the final actual experimental test, a set of optimal factor combinations of A3B1C2D1 was obtained. The value range of this parameter is: the low-speed compression damping value is 912.0~934.0N、the high-speed compression damping value is 1196.0~1278.0N、the low-speed rebound damping value is -542.0~-556.0N and High-speed rebound damping value -1187.0~1249.0N. In addition, in the factor combination, A represents the piston hole, B represents the size of the compression throttle plate, C represents the combination of the rebound throttle plate, and D represents the size of the high-pressure nitrogen gas.

摘要 i
ABSTRACT ii
致謝 iv
目錄 v
表目錄 viii
圖目錄 x
1 第一章 緒論 1
1.1 前言 1
1.2 研究動機 2
1.3 文獻回顧 2
1.4 論文架構 6
2 第二章 理論基礎 7
2.1 基本振動理論 7
2.2 阻尼系統 11
2.2.1 阻尼(damping) 12
2.2.2 阻尼作用五個面向： 12
2.3 避震系統 13
2.3.1 避震器最佳化參數設定 13
2.3.2 後避震器參數與自行車性能關聯性 15
2.4 阻尼活塞、油門片、高壓氮氣系統 20
2.4.1 阻尼活塞設計 (PISTON) 21
2.4.2 油門片設計 (Shim stacks) 23
2.4.3 高壓氮氣設置 (Nitrogen setting) 25
2.5 田口實驗法 26
2.6 變異數分析 29
2.7 灰關聯分析 30
3 第三章 實驗方法 33
3.1 實驗流程 33
3.1.1 Dyno測試曲線原理 34
3.2 實驗材料與設備 39
3.2.1 動態(Dyno)設備測試機 39
3.2.2 高壓氮氣設備 40
3.2.3 阻尼活塞 41
3.2.4 油門片規格 42
3.3 實驗規劃 45
4 第四章 實驗結果與討論 47
4.1 田口分析 47
4.1.1 低速壓縮阻尼 48
4.1.2 高速壓縮阻尼 50
4.1.3 低速回彈阻尼 52
4.1.4 高速回彈阻尼 54
4.1.5 針對田口實驗數值分析: 56
4.2 灰關聯分析 58
4.3 分析討論 61
5 第五章 結論 66
5.1 結論 66
5.2 未來展望 67
6 參考文獻 69

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