کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6917737 | 862958 | 2014 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improving the k-compressibility of Hyper Reduced Order Models with moving sources: Applications to welding and phase change problems
ترجمه فارسی عنوان
بهبود کیفیت فشردگی مدل های سفارشی کاهش یافته با منابع جابجایی: برنامه های مربوط به جوش و تغییرات فاز
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
A basic assumption in the design of HROMs is that the quantities that will be hyper-reduced are k-compressible in a certain basis in the sense that these quantities have at most k non-zero significant entries when expressed in terms of that basis. To reach the computational speed required for a real-time application, k must be small. This work examines different strategies for addressing hyper-reduction of the nonlinear terms with the objective of obtaining k-compressible signals with a notably small k. To improve performance and robustness, it is proposed that the different contributing terms to the residual are separately hyper-reduced. Additionally, the use of moving reference frames is proposed to simulate and hyper-reduce cases that contain moving heat sources. Two application examples are presented: the solidification of a cube in which no heat source is present and the welding of a tube in which the problem posed by a moving heat source is analysed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 274, 1 June 2014, Pages 237-263
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 274, 1 June 2014, Pages 237-263
نویسندگان
Alejandro Cosimo, Alberto Cardona, Sergio Idelsohn,