TY - GEN
T1 - Structural simplification of modular bond-graph models based on junction inactivity
AU - Ersal, Tulga
AU - Fathy, Hosam K.
AU - Stein, Jeffrey L.
N1 - Funding Information:
This work was supported by the Engineering Research Center for Reconfigurable Manufacturing Systems of the National Science Foundation under Award Number EEC 9529125.
PY - 2006
Y1 - 2006
N2 - The modular modeling paradigm facilitates the efficient building, verification and handling of complex system models by assembling them from general-purpose component models. A drawback of this paradigm, however, is that the assembled system models may have excessively complex structures for certain purposes due to the amount of detail of the component models, which is introduced to promote modularity. This work presents a domain-independent structural simplification technique that can detect such unnecessary complexities in a modular bond-graph model and eliminate them from the model without compromising accuracy. To this end, the activity concept in the literature is extended to define "inactivity" for junction elements, and simplification is obtained by detecting and eliminating inactive junction elements and by propagating the implications. It is shown that this simple idea can result in models that are conceptually and computationally more efficient. Some subtleties associated with this approach are highlighted.
AB - The modular modeling paradigm facilitates the efficient building, verification and handling of complex system models by assembling them from general-purpose component models. A drawback of this paradigm, however, is that the assembled system models may have excessively complex structures for certain purposes due to the amount of detail of the component models, which is introduced to promote modularity. This work presents a domain-independent structural simplification technique that can detect such unnecessary complexities in a modular bond-graph model and eliminate them from the model without compromising accuracy. To this end, the activity concept in the literature is extended to define "inactivity" for junction elements, and simplification is obtained by detecting and eliminating inactive junction elements and by propagating the implications. It is shown that this simple idea can result in models that are conceptually and computationally more efficient. Some subtleties associated with this approach are highlighted.
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U2 - 10.1115/IMECE2006-14567
DO - 10.1115/IMECE2006-14567
M3 - Conference contribution
AN - SCOPUS:84920630946
SN - 0791837904
SN - 9780791837900
T3 - American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC
BT - Proceedings of 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 - Dynamic Systems and Control Division
PB - American Society of Mechanical Engineers (ASME)
T2 - 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006
Y2 - 5 November 2006 through 10 November 2006
ER -