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A DAESA — a Matlab Tool for Structural Analysis of Differential-Algebraic Equations: Theory

By John D. Pryce and Nedialko S. Nedialkov

Abstract

DAESA, Differential-Algebraic Equations Structural Analyzer, is a MATLAB tool for structural analysis of differential-algebraic equations (DAEs). It allows convenient translation of a DAE system into MATLAB and provides a small set of easy-to-use functions. DAESA can analyze systems that are fully nonlinear, highindex, and of any order. It determines structural index, number of degrees of freedom, constraints, variables to be initialized, and suggests a solution scheme. The structure of a DAE can be readily visualized by this tool. It also can construct a block-triangular form of the DAE, which can be exploited to solve it efficiently in a block-wise manner. This paper describes the theory and algorithms underlying the code

Topics: Categories and Subject Descriptors, I.6.7 [Computing methodologies, Simulation support systems, G.4 [Mathematical software, Matlab, Algorithm design and analysis Additional Key Words and Phrases, Differential-algebraic equations, structural analysis, modeling ACM Reference Format
Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.363.7002
Provided by: CiteSeerX
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