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4 September 2003 Communication interval selection in distributed heterogeneous simulation of large-scale dynamical systems
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In this paper, a new technique useful for the numerical simulation of large-scale systems is presented. This approach enables the overall system simulation to be formed by the dynamic interconnection of the various interdependent simulations, each representing a specific component or subsystem such as control, electrical, mechanical, hydraulic, or thermal. Each simulation may be developed separately using possibly different commercial-off-the-shelf simulation programs thereby allowing the most suitable language or tool to be used based on the design/analysis needs. These subsystems communicate the required interface variables at specific time intervals. A discussion concerning the selection of appropriate communication intervals is presented herein. For the purpose of demonstration, this technique is applied to a detailed simulation of a representative aircraft power system, such as that found on the Joint Strike Fighter (JSF). This system is comprised of ten component models each developed using MATLAB/Simulink, EASY5, or ACSL. When the ten component simulations were distributed across just four personal computers (PCs), a greater than 15-fold improvement in simulation speed (compared to the single-computer implementation) was achieved.
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Charles E. Lucas, Eric A. Walters, Juri Jatskevich, Oleg Wasynczuk, and Peter T. Lamm "Communication interval selection in distributed heterogeneous simulation of large-scale dynamical systems", Proc. SPIE 5091, Enabling Technologies for Simulation Science VII, (4 September 2003);

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