کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9691707 1458199 2005 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification methods in nonlinear heat conduction. Part I: Model reduction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Identification methods in nonlinear heat conduction. Part I: Model reduction
چکیده انگلیسی
An original method for the identification of Reduced Models (RM) of nonlinear diffusive thermal systems is proposed in this numerical study. This method derives from the Modal Identification Method developed for linear systems in previous works. Starting from a Detailed Model (DM) under matrix form, a RM structure is defined. RM's matrices are then identified through the minimization of a squared residues functional built with the discrepancy between system responses (DM outputs in this study) on the one hand and RM outputs on the other hand, when a specific input signal is applied. A tridimensional example with thermal conductivity depending linearly on temperature illustrates the method. In comparison with DM, computing time is drastically reduced (division by a factor greater than 1000 in the proposed example) without significant loss of accuracy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 48, Issue 1, January 2005, Pages 105-118
نویسندگان
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