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RISCo-Simulation: Error Estimation and Macro-Step Size Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Efficiency and accuracy of a co-simulation may considerably be increased by using a variable communication-time grid. Therefore, an error estimator for controlling the macro-step size is required. Here, error estimators ...
Backward Differentiation Formula and Newmark-Type Index-2 and Index-1 Integration Schemes for Constrained Mechanical Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Various methods for solving systems of differential-algebraic equations (DAE systems) are known from literature. Here, an alternative approach is suggested, which is based on a collocated constraints approach (CCA). The ...
Implicit Co-Simulation and Solver-Coupling: Efficient Calculation of Interface-Jacobian and Coupling Sensitivities/Gradients
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We consider implicit co-simulation and solver-coupling methods, where different subsystems are coupled in time domain in a weak sense. Within such weak coupling approaches, a macro-time grid (communication-time grid) is ...