Computational Methods for Approximation of Large-Scale Dynamical Systems

Mohammad Monir Uddin

ISBN 10: 0815348037 / ISBN 13: 9780815348030

Editore: Chapman And Hall/CRC, 2019

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nach der Bestellung gedruckt Neuware - Printed after ordering - These days, computer-based simulation is consideredthe quintessential approach to exploring new ideas in the different disciplines of science, engineering and technology (SET).To perform simulations, a physical system needs to be modeled using mathematics; these models are often represented by linear time-invariant (LTI) continuous-time (CT) systems. Oftentimes these systems are subject to additional algebraic constraints, leading to first- or second-order differential-algebraic equations (DAEs), otherwise known asdescriptor systems. Such large-scale systems generally lead to massive memory requirements and enormous computational complexity, thus restricting frequent simulations, whichare required by many applications. To resolve these complexities, the higher-dimensional system may be approximated by a substantially lower-dimensional one through model order reduction (MOR) techniques. ComputationalMethods for Approximation of Large-Scale Dynamical Systemsdiscusses computational techniques for the MOR of large-scale sparse LTI CT systems. Although the book puts emphasis on the MOR of descriptor systems, it begins by showing and comparing the various MOR techniques for standard systems.The book also discusses the low-rank alternating direction implicit (LR-ADI) iteration and the issues related to solving the Lyapunov equation of large-scale sparse LTI systems to compute the low-rank Gramian factors, which are important components for implementingthe Gramian-basedMOR.Although this book is primarly aimed at post-graduate studentsand researchers of the various SET disciplines, thebasic contents of this book can be supplemental to the advanced bachelor's-level students as well. It can also serve as an invaluable referenceto researchers working in academics and industries alike.Features:Provides an up-to-date, step-by-step guide for its readers. Each chapter develops theories andprovides necessary algorithms, worked examples, numerical experiments and related exercises. With the combination of this book and its supplementary materials, the reader gains a sound understanding of the topic.The MATLAB® codes for some selected algorithms are provided in the book. The solutions to the exercise problems, experiment data sets and a digital copy of the software are provided on the book's website;The numerical experiments use real-world data setsobtained from industries and research institutes.

Codice articolo 9780815348030

Dati bibliografici

• Titolo: Computational Methods for Approximation of Large-Scale Dynamical Systems
• Editore: Chapman And Hall/CRC
• Data di pubblicazione: 2019
• Lingua: Inglese
• ISBN 10: 0815348037
• ISBN 13: 9780815348030
• Rilegatura: Buch
• Condizione: Neu
• Dimensioni: 240 L x 161 A x 23 P (millimetri) 240 millimetri di larghezza per 161 millimetri di altezza per 23 millimetri di profondità
• Peso: 672 grammi

Descrizione articolo

Riassunto

These days, computer-based simulation is considered the quintessential approach to exploring new ideas in the different disciplines of science, engineering and technology (SET). To perform simulations, a physical system needs to be modeled using mathematics; these models are often represented by linear time-invariant (LTI) continuous-time (CT) systems. Oftentimes these systems are subject to additional algebraic constraints, leading to first- or second-order differential-algebraic equations (DAEs), otherwise known as descriptor systems. Such large-scale systems generally lead to massive memory requirements and enormous computational complexity, thus restricting frequent simulations, which are required by many applications. To resolve these complexities, the higher-dimensional system may be approximated by a substantially lower-dimensional one through model order reduction (MOR) techniques. Computational Methods for Approximation of Large-Scale Dynamical Systems discusses computational techniques for the MOR of large-scale sparse LTI CT systems. Although the book puts emphasis on the MOR of descriptor systems, it begins by showing and comparing the various MOR techniques for standard systems.

The book also discusses the low-rank alternating direction implicit (LR-ADI) iteration and the issues related to solving the Lyapunov equation of large-scale sparse LTI systems to compute the low-rank Gramian factors, which are important components for implementing the Gramian-based MOR.

Although this book is primarly aimed at post-graduate students and researchers of the various SET disciplines, the basic contents of this book can be supplemental to the advanced bachelor's-level students as well. It can also serve as an invaluable reference to researchers working in academics and industries alike.

Features:

• Provides an up-to-date, step-by-step guide for its readers. Each chapter develops theories and provides necessary algorithms, worked examples, numerical experiments and related exercises. With the combination of this book and its supplementary materials, the reader gains a sound understanding of the topic.
• The MATLAB® codes for some selected algorithms are provided in the book. The solutions to the exercise problems, experiment data sets and a digital copy of the software are provided on the book's website;
• The numerical experiments use real-world data sets obtained from industries and research institutes.

Informazioni sull?autore

Dr Mohammad Monir Uddin is an Assistant Professor in the Department of Mathematics and Physics at the North South University, Bangladesh. His research interests are Model Order Reduction,Systems and Control Theory, Iterative Methods for Large Sparse Matrix Equations, Numerical Linear Algebra, Optimization and Scientific Computing.