English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2314411      Online Users : 26
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/10210

Title: 平板對接銲接工件之三維熱傳分析
Three-Dimensional Heat Transfer Analysis on Butt Welding of Two Plates
Authors: 廖世平;葉榮華
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
國立臺灣海洋大學:機械與機電工程學系
Keywords: 三維熱傳遞;焊接;數值分析;溫度分布
3-D heat transfer;Welding;Numerical analysis;Temperature distribution
Date: 2000
Issue Date: 2011-06-28T07:38:08Z
Publisher: 行政院國家科學委員會
Abstract: 銲接廣泛運用於工件之結合。然而,銲接問題產生的主因除了銲接工件本身的熱傳性質與物理特性外,另一個主因來自於銲接的移動熱源。本計劃使用Douglas-Gunn 數值演算方法,計算出工件的三維溫度分布,在忽略焊接過程中潛熱效應下,假設熱源於平面座標呈二維高斯分布,分別以入熱量、焊接速度、厚度、電弧半徑為參數,探討兩平板於熱源定速移動中,銲接過程裡平板的溫度分布情形,並以高張力鋼(DH32)與鋁合金(6061)兩種板材來加以實驗驗證理論模式的正確性。
Douglas-Gunn method was applied to solve the three-dimensional butt-welding problem by neglecting latent heat effect. Heat input rate, feeding speed, radius of arc and the thickness of test piece were varied parametrically to investigate the transient behavior of the temperature distribution. Form the numerical results, as the feeding speed increases the highest temperature is found to be lower. This highest temperature is observed to be significant for a thinner plate or a smaller radius of the arc. Moreover, temperature profile is highest at a larger heat input and the relation between them appears linear dependent. The results are compared favorable with experimental data. Through the present analysis a better welding product can be obtained.
Relation: NSC89-2212-E019-018
URI: http://ntour.ntou.edu.tw/ir/handle/987654321/10210
Appears in Collections:[機械與機電工程學系] 研究計畫

Files in This Item:

File Description SizeFormat
index.html0KbHTML92View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback