MODULAR REPRESENTATION OF NON-MODULAR HFSS MODELS



Fernando J. Barros Dept. Eng. Informática Universidade de Coimbra P-3030 Coimbra, Portugal barros@dei.uc.pt


ABSTRACT: The common representation of sets of differential equations makes use of non modular models. In these systems the numerical integration step is usually fixed or it is imposed by the most demanding equation. Numerical methods that assign different time steps to each component can be more efficient, especially when a large number and independent entities are involved. In order to permit a flexible component partitioning scheme into fast and slow entities we introduce the concept of Quasi-Modular Network (QMN). This type of network exhibits modularity properties while permitting models to behave in a tight connection, sharing the same time step. Repartitioning can be easily achieved using QMNs for it involves no change in model definition. The experimentation with different, and possibly dynamic, partitions of components can thus be made. To illustrate the advantages of QMNs we present the simulation of a pursuer-target system.

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