کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
498985 863021 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Space and time localization for the estimation of distributed parameters in a finite element model
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Space and time localization for the estimation of distributed parameters in a finite element model
چکیده انگلیسی

In this paper we study the problem of estimating the possibly non-homogeneous material coefficients inside a physical system, from transient excitations and measurements made in a few points on the boundary. We assume there is available an adequate Finite Element (FEM) model of the system, whose distributed physical parameters must be estimated from the experimental data.We propose a space–time localization approach that gives a better conditioned estimation problem, without the need of an expensive regularization. Some experimental results obtained on an elastic system with random coefficients are given.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 198, Issues 37–40, 1 August 2009, Pages 3020–3025
نویسندگان
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