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Towards Integrating Hybrid DAEs with a High-Index DAE Solver

Nedialko S. Nedialkov 1 Nacim Ramdani 2, *
* Corresponding author
2 COPRIN - Constraints solving, optimization and robust interval analysis
CRISAM - Inria Sophia Antipolis - Méditerranée , ENPC - École des Ponts ParisTech
Abstract : J.D. Pryce and N.S. Nedialkov have developed a Taylor series method and a C++ package, DaeTs, for solving numerically an initial-value problem differential-algebraic equation (DAE) that can be of high index, high order, nonlinear, and fully implicit. Numerical results have shown this method to be efficient and very accurate, and particularly suitable for problems that are of too high an index for present DAE solvers. However, DaeTs cannot be applied to systems of DAEs that change at points it time, also called hybrid or multi-mode DAEs. This paper presents methods for extending Daets with the capability to integrate hybrid DAEs. Methods for event location and consistent initializations are given. Daets is applied to simulate a model of a parallel robot: a hybrid system of index-3 DAEs with closed-loop control.
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Submitted on : Friday, February 13, 2009 - 9:47:25 AM
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Nedialko S. Nedialkov, Nacim Ramdani. Towards Integrating Hybrid DAEs with a High-Index DAE Solver. [Research Report] RR-6834, INRIA. 2009, pp.16. ⟨inria-00360999⟩

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