臺灣博碩士論文加值系統

由於科技不停的進步，運動器材也隨之改變，網球用具也不斷地推陳出新，就連網球拍線材質的使用也有所改變，為了增加耐用性以及功能性，球拍線的科技也開始進行相關性的研究及發展；本研究之目的在探討球拍線在經過疲勞與破壞測試後，球拍線的衰減程度；本研究之方法是利用萬能拉伸測試機針對直徑為1.25mm的三種不同材質的網球拍線，球拍線種類分別為合成腸線、聚酯纖維腺、尼龍纖維線進行疲勞測試，利用感測器來蒐集球拍線在拉伸後的衰減性以及破壞程度；本研究結果發現，經過疲勞測試過後球拍線的衰減方面，以人工合成長線表現較好，衰減率為0.021，而聚酯纖維球拍線其次，衰減率為0.031，然而尼龍纖維球拍線率為0.033；由於在每一次拉伸測試時，球拍線的張力與測試前的張力並無顯著的差異，所以必須長時間的進行疲勞測試才可以確認網球拍線的衰減性，未來可以用此方法來模擬球拍線的耐用性。

With the advance of technology, the quality and functions of sports equipments had also evolved and improved dramatically. It was exactly the same case happens in the tennis field, even for the racket strings. To boost the durability and the utility of racket strings, related researches and development about the string materials are proceeding. The research was to study the attenuation of the racket strings after fatigue and destruction tests. The experiments are conducted on the Dynamic and Fatigue Test Systems, with diameter 1.25mm strings of 3 different kinds of materials, the synthetic GUT, the polyester, and the Nylon. Sensors are used to collect the attenuation and destruction data of the racket strings after the stretching tests. From the data collected from the experiment, the synthetic GUT has less attenuation rate of 0.021. The polyester with attenuation rate of 0.031 runs the second place, while the Nylon ranks the third with 0.033. The experiment calls for long time fatigue tests, which is required to certify the attenuation of the strings, for the tension of the strings doesn’t have dramatic difference after each stretching test. The long time test is recommended while stimulating the durability of the racket strings in the future.

摘要 i
ABSTRACT ii
目錄 iii
圖目錄 v
表目錄 vi
第壹章 緒論 1
第一節 前言 1
第二節 研究背景 3
第三節 研究目的 5
第四節 研究範圍與限制 6
第六節 操作性定義與名詞解釋 7
第貳章 文獻探討 9
第一節 張力與球拍的關係 9
第二節 張力測試比較 10
第三節 球拍線的測試比較 12
第四節 文獻總結 15
第三章 研究方法 16
第一節 研究材料 16
第二節 實驗時間及地點 17
第三節 儀器及功能 17
第四節 實驗步驟 20
第五節 資料蒐集與分析 21
第肆章 結果與討論 22
第一節 球拍線拉伸後衰減之比較 22
第二節 不同材質球拍線衰減之比較 25
第三節 綜合討論 26
第伍章 結論與建議 27
第一節 結論 27
第二節 建議 28
文獻探討 29

中文部分
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林寶城(民85)。不同網球拍拍線截面對擊球時所產生之動力響應。中華民國體育學會體育學報，21，137-150。
相子元(民86)。網球拍振動之有限元素分析。國立體育學院論叢，7(2)，29-38。

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