Author

Andreas Bartel

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Preprint Sep 2026

Energy-Consistent Splitting and Decomposition Approaches for Coupled port-Hamiltonian ODEs

Operator splitting provides an attractive approach for the numerical integration of (coupled) port-Hamiltonian systems, as it allows the underlying system structure to be exploited at the level of the individual subproblems. However, the choice of the decomposition is not unique and may strongly affect both the computa...

Marius Mönch, Nicole Marheineke, Andreas Bartel et al. · 1 citation

Preprint Sep 2026

A Generalized Scalar Auxiliary Variable Method for Structure-Preserving and Efficient Integration of Nonlinear port-Hamiltonian DAEs

An energy-optimal generalized scalar auxiliary variable (EOP-GSAV) framework for nonlinear index-one port-Hamiltonian differential-algebraic equations (pH-DAEs) is developed, exploiting the port-Hamiltonian structure to separate the nonlinear effort, interconnection, and dissipation terms from a constant implicit core.

Aashutosh Sharma, Andreas Bartel, Manuel Schaller · 0 citations