博碩士論文 82343008 完整後設資料紀錄

DC 欄位	值	語言
DC.contributor	機械工程學系	zh_TW
DC.creator	張啟生	zh_TW
DC.creator	Chi-Sheng Chang	en_US
dc.date.accessioned	2000-12-20T07:39:07Z
dc.date.available	2000-12-20T07:39:07Z
dc.date.issued	2000
dc.identifier.uri	http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=82343008
dc.contributor.department	機械工程學系	zh_TW
DC.description	國立中央大學	zh_TW
DC.description	National Central University	en_US
dc.description.abstract	本文嘗試以體適合法(Body-Fitted Method)產生格點，並以二維二相之不同速度同溫度模式，分析二維熱流效應，以了解電極間隙內，各項熱流參數諸如體積分率、流場、壓力及溫度等之分佈情形。並利用崁入法反求工具形狀，以加工出所欲得之工件形狀。以完整傅利葉級數擬合工件形狀，來降低相對誤差。 藉由本文之分析，結果顯示所預測之工件外形與Hopenfeld和 Cole所做的實驗值十分接近。而二維熱流效應在加工區域流場形狀變化很大時非常顯著，增加供給電解液之流量只能輕微的減輕其影響。若流場形狀變化不大時，二維熱流效應較小，可用一維熱流模式分析以節省計算時間。	zh_TW
dc.description.abstract	Tool design in electrochemical machining is investigated which includes the effects of thermal-fluid properties of the electrolyte. A finite Fourier cosine series, constructed by both even and odd harmonics, is used in the electrode representation to reduce the relative error. A two-dimensional two-phase numerical model is applied to predict the thermal-fluid field. Results show that, as the curvature of the electrode shape varies seriously, the two-dimensional phenomenon of the flow is apparent and the two-dimensional model should be used in the numerical simulation. Larger flow rate of the electrolyte can lightly reduce the two-dimensional effects. As the curvature of the electrode shape varies mildly, one-dimensional analysis is accurate enough and capable to reduce the calculating time.	en_US
DC.subject	電化學加工	zh_TW
DC.subject	反求法	zh_TW
DC.subject	二相流	zh_TW
DC.subject	ECM	en_US
DC.subject	inverse problem	en_US
DC.subject	two-phase flow	en_US
DC.title	二維熱流效應對電化學加工反求工具形狀之分析	zh_TW
dc.language.iso	zh-TW	zh-TW
DC.title	Two-dimensional two-phase numerical model for tool design in electrochemical machining	en_US
DC.type	博碩士論文	zh_TW
DC.type	thesis	en_US
DC.publisher	National Central University	en_US