Application of orthogonal experimental design and Tikhonov regularization method for the identification of parameters in the casting solidification process

作     者：Dashan SUI Zhenshan CUI 

作者机构：National Die ＆ Mould CAD Engineering Research Center Shanghai Jiaotong UniversityShanghai 200030 China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2009年第22卷第1期

页      码：13-21页

摘      要：The inverse heat conduction method is one of methods to identify the casting simu- lation parameters. A new inverse method was presented according to the Tikhonov regularization theory. One appropriate regularized functional was established, and the functional was solved by the sensitivity coeffcient and Newton-Raphson iteration method. Moreover, the orthogonal experimental design was used to estimate the ap- propriate initial value and variation domain of each variable to decrease the number of iteration and improve the identification accuracy and effciency. It illustrated a detailed case of AlSi7Mg sand mold casting and the temperature measurement ex- periment was done. The physical properties of sand mold and the interfacial heat transfer coeffcient were identified at the meantime. The results indicated that the new regularization method was effcient in overcoming the ill-posedness of the inverse heat conduction problem and improving the stability and accuracy of the solutions.

主 题 词：Tikhonov正则化方法 正交试验设计 铸件凝固过程 逆热传导问题 应用 砂型铸造 界面传热系数 模拟参数 

学科分类：02[经济学] 07[理学] 08[工学] 070103[070103] 0202[经济学-财政学类] 020208[020208] 0817[工学-轻工类] 0806[工学-电气类] 0807[工学-电子信息类] 080203[080203] 0805[工学-能源动力学] 0802[工学-机械学] 0703[理学-化学类] 0714[0714] 0811[工学-水利类] 0701[理学-数学类] 

核心收录：

D　O　I：10.1016/S1006-7191(08)60065-4

馆 藏 号：203106399...