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研究生:陳盈劭
研究生(外文):Ying-Shao Chen
論文名稱:橢圓比與運動方向對摩擦係數及面積增長量之影響
論文名稱(外文):The Effects of Ellipticity and Motion Direction on Junction Growth and Friction Force
指導教授:洪政豪洪政豪引用關係
指導教授(外文):Horng Jeng-Haur
學位類別:碩士
校院名稱:國立虎尾科技大學
系所名稱:機械與機電工程研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2013
畢業學年度:101
語文別:中文
論文頁數:90
中文關鍵詞:界面增長微接觸力學摩擦接觸面積彈-塑性接觸
外文關鍵詞:interface growthmicro-contact mechanicsfrictioncontact areaelastic - plastic contact
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精密機械元件於運動中之界面接觸特性與元件之靜態表面接觸特性有相當之差異,本研究利用微接觸實驗台量測四種橢圓比之純銅試件和石英玻璃片作不同方向(0°、45°、90°)運動,探討產生之摩擦系數、變形量和界面增長量之變化情形。本實驗過程中先施加一正向負荷於純銅試件與石英玻璃片,接觸後再給予施加一切線速度使純銅試件在石英玻璃平面上產生滑動,並探討兩試件在不同接觸角角度、不同橢圓比、不同負荷、不同切線速度下之界面增長量與變形量之變化情形,並深入了解其接觸界面對摩擦係數有何影響性。
在本實驗設定之參數(負荷50N、100N、170N與速度10?m/s、20?m/s、30?m/s)實驗結果顯示,當純銅試件與石英玻璃片接觸並產生切線滑動現象時,其界面增長量與變形量皆呈現負荷越大增長量與變形量越大的趨勢,但增長與變形情形,皆集中發生在初始階段。故界面增長量與變形量與正向負荷成正向關係,而接觸角度與橢圓率對增長與變形情形影響不大。摩擦係數實驗結果皆呈現負荷越大摩擦係數越小之情形,而切向滑移速度與橢圓比率及接觸角度對摩擦係數影響並沒有一定規律。


At this stage in the study of micro-mechanical components of the theoretical studies, however, are usually ignored the tangential speed, if we can have a better understanding of the characteristics of the micro-contact tangent interface can be found In fact, the tangential velocity of the micro-mechanical components the surface has a considerable impact, if there is a better understanding of the tangent interface, not only in the operation of the micro-mechanical components more effective solution to the operation of the machine, can be accurately control and achieve higher output value of more can effectively prolong the life of the micro-mechanical element.
This research sonication cleaning the surface of the built recycling four proportion of pure copper specimen microcontact bench measurements and square quartz glass for analog two objects come into contact, the coefficient of friction and deformation arising the case of the interface increase. During the experiment to impose a positive load copper specimen with square quartz glass contact and then give all linear velocity is applied to the copper specimen in the the square quartz glass plane sliding, and to explore the two specimens in different contact angles angle, a different proportion of specimens of different load, the the copper specimen under different tangential velocity interface growth with the change of the deformation of the case, and in-depth understanding of the impact of the contact interface friction coefficient.
The experimental results show that when copper specimen in contact with the quartz glass and generates a tangential sliding phenomenon, its interface growth with the amount of deformation are rendered the bigger the load increase and the greater the amount of deformation of the trend, but growth and deformation situation are concentrated in the initial stage, the contact angle and ellipticity little effect on growth and deformation situation. So the interface growth in the amount of deformation is proportional to the forward load. To the predefined parameters (load 50N, 100N, 170N speed 10 m / s, 20 m / s, 30 m / s), the coefficient of friction experimental results are presented the case of the smaller the load the greater the friction coefficient, tangential slip velocity ellipse ratio and contact angle has little effect on the friction coefficient.


中文摘要 ii
英文摘要 iii
誌謝 v
表目錄 viii
圖目錄 ix
符號說明 xiv
第一章 緒論 1
1.1 前言 1
1.2 研究動機 2
1.3 論文架構 8
第二章 文獻回顧及理論基礎 9
2.1文獻回顧 9
2.2理論基礎 14
2.2.1微接觸力學 14
2.2.2球體粗糙峰微接觸模型理論分析 15
2.2.3橢圓體粗糙峰微接觸模型理論分析 17
2.2.4粗糙面之微接觸模型理論分析 18
2.2.5真實接觸面積 18
2.2.6滑動摩擦 19
2.2.7具尺寸效應之變形摩擦 19
第三章 實驗設備與方法 25
3.1 實驗目的 25
3.2 實驗流程 25
3.2.1微接觸力學試驗台操作流程 25
3.2.2界面增長分析軟體操作流程 27
3.2.3界面增長百分比計算方法 27
第四章 結果與討論 37
4.1 摩擦係數 37
4.1.1 不同負荷對摩擦係數的影響 37
4.1.2 不同切線速度對摩擦係數的影響 37
4.1.3 不同接觸角度對摩擦係數的影響 38
4.1.4 不同橢圓率對摩擦係數的影響 38
4.2 界面增長 39
4.2.1 不同負荷對界面增長的影響 39
4.2.2 不同切線速度對界面增長的影響 40
4.2.3 不同接觸角度對界面增長的影響 41
4.2.4 不同橢圓率對界面增長的影響 41
4.3 變形量 42
4.3.1 不同負荷對壓縮變形量的影響 42
4.3.2 不同切線速度對壓縮變形量的影響 43
4.3.3 不同接觸角度對壓縮變形量的影響 43
4.3.4 不同橢圓率對壓縮變形量的影響 44
4.4 界面增長、摩擦係數與壓縮變形量關係 45
第五章 結論與建議 74
5.1 結論 74
5.2 建議 76
參考文獻 77
英文論文大綱 83


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