臺灣博碩士論文加值系統

摘要
過去產業所使用的馬達為傳統旋轉馬達，是屬於旋轉運動，它是需要搭配滾珠螺桿、齒輪、皮帶、導螺桿等零組件來作驅動運轉，這種傳動機構容易產生摩擦，會造成零組件損壞。近幾年來，線性馬達產品的問市，在機械工業領域進而取代傳統旋轉馬達，而線性馬達的運動不同於旋轉馬達，是屬於直線運動。線性馬達在瞬間高加速或瞬間高減速時，其銅線圈會有熱源產生，工作平台會有熱變形產生，造成產品加工精度降低，要改善線性馬達的散熱問題，其散熱機構為主要之關鍵因素，因此本論文研究目的為利用有限元素法，分析探討線性馬達的平台不同散熱設計，在相同邊界條件下，進行溫度及變形量模擬分析，依照所模擬的結果，選擇最佳散熱機構模組的線性馬達，因而可以大幅縮短開發時程。此外，本研究成功地運用ANSYS應用軟體模擬線性馬達平台的熱效應分析，可提供業界作為開發線性馬達的平台熱分析應用。

Abstract
The traditional rotary motor works with ball screws, gears, leather belts, lead screws to drive machine. It gets broken easily by friction. Linear motors were used extensively instead of traditional ones in the field of engineering industry. The characteristic of a lineal motor is linear motion. The copper coils generate heat when the linear motor accelerate or decelerate instantly. The work platform is deformed by thermal stress and the distortion will decrease the precision. The mechanism of heat dissipation is the key point to solve this problem. We analyze temperature and deformation with different designs of heat dissipation mechanism by using finite element method. From the result of simulation, the best design was obtained. Furthermore, by analyze the heat effect of the platform using ANSYS, the results of heat analysis will be contributed to industry to reduce the time of heat dissipation mechanism design of a developing linear motor.

目錄
摘要......................................................Ⅰ
Abstract...................................................Ⅱ
目錄......................................................Ⅲ
表目錄....................................................Ⅴ
圖目錄....................................................Ⅵ
符號說明..................................................Ⅸ
第一章 緒論................................................1
1.1 前言..................................................1
1.2線性馬達的構造........................................2
1.3 文獻回顧..............................................6
1.4 研究動機與目的........................................9
1.5 線性馬達四種不同散熱機構設計.........................10
1.6 論文架構.............................................13
第二章 熱傳導與結構應力應變理論...........................14
2.1熱傳導統御方程式.....................................14
2.2 熱應變與應力.........................................16
第三章 有限元素法應用在熱傳及結構應力應變分析.............18
3.1 有限元素法介紹.......................................18
3.2 有限元素法之熱傳方程式...............................19
3.3 熱傳模擬分析流程.....................................21
3.4 有限元素法之應力和應變方程式.........................24
第四章 結果與討論.........................................27
4.1 驗證mesh獨立........................................27
4.2參數設定與模擬驗證...................................30
4.2.1參數設定..........................................30
4.2.2 模擬驗證.........................................37
4.3 分析四種不同模型的熱傳行為...........................38
4.4 變形量模擬驗證.......................................43
4.5分析四種不同模型的變形量.............................49
第五章 結論與未來展望.....................................53
5.1 結論.................................................53
5.2 未來展望.............................................54
參考文獻..................................................55

參考文獻
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