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研究生:黃耀民
研究生(外文):Yao Ming Huang
論文名稱:筆記型電腦鉸鏈結構之應力分析
論文名稱(外文):The Stress Analysis of Hinge Structure For Notebook Computer
指導教授:莊書豪莊書豪引用關係
學位類別:碩士
校院名稱:國立中興大學
系所名稱:機械工程學系
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:2001
畢業學年度:90
語文別:中文
論文頁數:69
中文關鍵詞:鉸鏈筆記型電腦ANSYS應力分析
外文關鍵詞:HingeNotebook computersANSYSStress Analysis
相關次數:
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摘要
本研究是利用有限元素分析軟體ANSYS來分析筆記型電腦鉸鍊相關結構之應力分析。本研究簡化成兩個主題,一是求鉸鍊結構上螺絲固定處的反作用力;二是將所求得的鉸鍊螺絲固定處的反力當作為外力負荷作用於鉸鍊固定座(I/O bracket)上,以求鉸鍊固定座應力分佈與最大應力發生處。本研究建議更改鉸鍊結構上螺絲固定的方式或是在鉸鏈固定座上加裝橡皮墊片,期能使鉸鍊固定座減少衝擊力。本文除了解決已發生之實際問題外,並為筆記型電腦的結構設計上提供一套有系統的設計參考模式,以做為將來改善產品設計時之參考。並為往後類似問題建立一套有系統之分析模式,做為設計鉸鍊型式及固定位置時之重要參考依據。本研究乃針對筆記型電腦之鉸鏈做相關之探討,其鉸鏈設計之形式或位置可以應用到類似的產品,如掌上型PDA、電子翻譯機或是個人的行動電話等產品上。尤其是現在行動電話越來越輕、薄、短、小,因此鉸鏈的設計與發展勢必更加精緻細密,才能迎合時代的潮流。
關鍵字:鉸鏈、筆記型電腦、ANSYS、應力分析
ABSTRACT
This paper uses finite element analysis software to analyze the hinge structure of notebook computer. Herein, we intend to determine the reaction forces at hinge which are fixed with screws. The resultant reaction forces are then applied to I/O bracket as external forces. The I/O bracket stress analysis can then be obtained. The results show that the location of maximum stress coincident with the place of real failure. The shock-absorbing pad and screwed hinged are proposed to modify the hinge structure. The paper has solved real problem in a notebook computer, and then provides a systematic procedure for hinge structure analysis of notebook computer. It also provides a reference for production design and improving product for designing new type of hinge for notebook computer. These analysis experiences may also apply to personal digital assistant (PDA), electrical translator, personal cellular phone, and etc. Especially, while the popular cellular phone recently has become lighter, and smaller, therefore the design and development of associated hinge structure must be more delicate and precise in order to stay current and upgrade in the future.
Key words:Hinge, Notebook Computers, ANSYS, Stress Analysis
目 錄
誌 謝……………………………………………………………….I
中文摘要……………………………………………………………..II
英文摘要……………………………………………………………..III
目 錄……………………………………………………………..IV
表 目 錄………………………………………………………………VII
圖 目 錄…………………………………………………………….VIII
符號說明………………………………………………………………. X
第一章 緒論…………………………..……………………………..1
1.1前言……………………….………………………………..1
1.2研究背景…………………………………………………...2
1.3研究動機與目的 ……………………………………………2
第二章 文獻回顧……..…………….………………………………..4
2.1鉸鏈之起源……..…………………………..……..………4
2.2鉸鏈之設計與製造………...………..……………….…..5
2.3鉸鏈之改良.…………………………………………………6
第三章 筆記型電腦鉸鏈之傳統設計分析…….…………………….8
3.1整體結構之問題定義與分析目標…..……………...…...8
3.1.1問題定義…………..…….………….…………..…..8
3.1.2分析目標……………..…………….…….…..……13
3.1.3簡化分析過程…………….…..……..….……….…13
3.2求鉸鏈之反作用力之問題定義與分析目標………………13
3.2.1問題定義………….……...…………………..……13
3.2.2分析目標……….…………..…..……….…………18
3.3求鉸鏈固定座最大應力及其發生處之問題定義與分析目標…………………………………………………………..13
3.3.1問題定義……..……………….……….…….…..18
3.3.2 分析目標….…………..…….………….…….….18
3.4有限元素法分析模擬…………………………….………20
3.4.1 有限元素法基本理論………....……………………20
3.4.1.1 內插函數……………………………………….20
3.4.1.2 高斯積分法…………………………………….23
3.4.2 求鉸鏈反作用力之有限元素分析流程………....….25
3.4.3 求鉸鏈固定座最大應力之有限元素分析流程…….31
第四章 筆記型電腦鉸鏈之更新設計分析….………………………. 42
4.1更新設計分析………………….……………………….. 42
4.1.1 問題定義…………….…….…………..…………..42
4.1.2 分析目標………….…….….…………….…….….42
4.2有限元素分析流程..…………….………………………..424.2.1 元素型式…………..….………………..…………..42
4.2.2 分割……………….…..….……………….…….…43
4.2.3 位移限制…………….……….………..…………..43
4.2.4 外力負荷………….…….……….……….…….….43
第五章 結果與討論……………………………………………………49
5.1 傳統設計分析結果與討論……………………………….49
5.2 更新設計分析結果與討………………………………….50
5.3 傳統設計與更新設計結果比較………………………….51
第六章 結論與未來展望………………………………………………63
6.1結論…….…..……….…….…….………..…………..63
6.2未來展望.…….……...………….…………….……….64
參考文獻………………………………………………..…………...66
作者簡介…..………………………………………………………….69
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