Authors
Devyatkov T.
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Degree
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PhD in Technique, Elina – Computer Ltd. |
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E-mail
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9th@yandex.ru |
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Location
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Kazan |
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Articles
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Some Problems of Computer-Aided Simulation Study Systems DevelopmentSimulation languages and systems are analyzed regarding their levels of automation and visualization. Based on conclusion that development of complex systems with improved simulation study algorithms, methods and programs is needed systems classification is carried out. High-dimensional statistical sampling processing method is described to illustrate the advanced approach features. Read more...Shared research space for simulation modeling in GPSS StudioThe preconditions of creation, conceptual bases and main functions of the new environment of simulation
modeling GPSS Studio for the study of complex discrete – event systems are analyzed and formulated.
The simulation language GPSS World is used as the modeling core of the environment. When
creating a modeling environment, a number of new concepts are introduced. It is – a single research
space, a simulation research project, dynamic monitoring of the model, a simulation application, and
a virtual report. The possibilities of complex application of the modeling environment at all stages of
simulation with the use. It is – of hierarchical structural schemes of the model, text editor, automatic
generation of the model text, debugger, interactive standard modeling report, databases of the model
source data and simulation results, means of operational analysis of the dynamics of changes in the
model indicators. Special attention is paid to the creation of simulation applications independent of
the simulation environment. The basic tools of the environment for creating simple and accessible
for the mass user simulation applications, taking into account the specifics of the subject area of the
system under study are described. As a result, the created application can be operated by a specialist
without additional programming.
Read more...
Simulation modeling application in complex system managementThe article analyses the issues of the simulation models application in the large systems management. The background of the issue, specifically, the gradual increase of the models application domain in the management, is described. Quite successful results of the simulation models application in the strategic management of complex systems in different branches are noticed, for example, the works described in [6, 7]. It is mentioned that quite long execution time of most simulation models make it difficult to use them in the operational management, especially for complex systems. The possible solutions of this problem related to the synergy of multiple factors, primarily the emergence of the fundamentally new computational capabilities, use of contemporary concepts of simulation investigations, a combination of the simulation modeling with the multi-factor optimization, the use of the model as a solver, are proposed. The ability to conduct optimizing experiments with the model allows to find and recommend the best ways of the system development. The effectiveness of the simulation experiments application is shown in this article for the optimal planning of the oil refining company output. The technique of the optimal solution finding in the modeling environment by means of the connection of the IOSO multiparameter optimization software to the GPSS Studio modeling environment was successfully tested. Based on the results of the work, it was concluded that in the future the technique of optimal solution finding will allow use of the simulation model as an automatic “intellectual solver” in automatic production planning processes. The analysis and estimations performed showed that the integrated use of all new possibilities ensures the synchronization of the model execution time and the required time bounds of the management solution production. The conclusion about the beginning of active use of the simulation modeling method for the complex systems operational control is made. Read more... |
