کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4641156 1341298 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Model reduction for a class of linear descriptor systems
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Model reduction for a class of linear descriptor systems
چکیده انگلیسی
For linear descriptor systems of the form Bẋ=Ax+Cu, y=Ox, this paper constructs reduced order systems associated with a given part of the finite spectrum of the pencil P(λ)=A−λB. It is known that the reduction can be obtained by a block diagonalization of the generalized Schur decomposition of P(λ). In this paper we consider the special case when B=[H000]and A=[JG−F∗0]. This case is suited, in particular, for linearized hydrodynamic problems. We derive a sufficient condition under which the reduced system can approximate the initial one and show that it can be obtained in significantly cheap and efficient approaches. We consider first in detail the case when F=G and H is the identity matrix and then treat the general case.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 229, Issue 1, 1 July 2009, Pages 54-60
نویسندگان
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