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| 題 名 | 船舶螺槳數控加工幾何模型之研究=A Study of NC Machining Geometric Models for Marine Used Propeller |
|---|---|
| 作 者 | 郭興家; 詹為淵; | 書刊名 | 中國造船暨輪機工程學刊 |
| 卷 期 | 18:3 1999.08[民88.08] |
| 頁 次 | 頁43-51 |
| 分類號 | 444.7 |
| 關鍵詞 | 微分幾何; 螺槳葉片工作面; 步長; 行距; Differential geometry; Driving face of propeller blade; Step lengths; Path intervals; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本文應用微分幾何理論建立船舶螺槳葉片工作面的幾何模型,並對曲面之曲率特 性進行分析,進導端銑刀加工螺槳葉片工作面時,端銑刀有效半徑刀、主軸傾角、切削步 長和切削行距等參數的計算公式。此外考慮加工步長內線性化逼近誤差向殘留高度的影響 ,以實例來驗證在最大殘留高度不變的前提下,調整端銑刀的主軸傾角以獲得較大的行程 ,使螺槳葉片工作面的加工效率和加工精度得到明顯提高。 |
| 英文摘要 | By means of the theories of computational geometry and differential geometry, the equation of driving face of propeller blade with a constant pitch is presented in the paper. The model for defining maximal admissible ball-end cutter radius used in the NC machining of propeller blade surface is deduced. The models for numberical analysis and for calculation of step lengths and path intervals are also provided. Besides, the related geometric model for calculating the actual maximal error by using the envelope surfaces of cutter is presented. Finally, the feasibility and reliability of the models and methods provided in the paper are verified by an example. It is also verified that these models and methods can better improve both machining efficiency and accuracy of the propeller than many other methods, which are used more often. |
本系統中英文摘要資訊取自各篇刊載內容。