Authors
Madera A.
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Degree
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Dr of Technique, Professor Research Institute for System Analysis of RAS, |
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E-mail
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agmprof@gmail.com |
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Location
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Moscow |
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Articles
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Computer simulation of temperature fields in technical systems under interval stochastic uncertain parametersTemperature fields in real technical systems are interval and stochastic, that caused by interval
stochastic uncertain parameters. However existing methods for modeling of temperature fields in
technical system are based on the assumption that parameters determining the thermal regimes are
deterministic, meanwhile, an actual practice shows that such assumption is very far from the reality
and leads to low adequacy of modeling. An interval stochastic nature of temperature fields in technical
system is due to such random factors as: manufacturing tolerances; environmental characteristics;
external environment of operation; design parameters of system (contact gap, sizes, shape,
distance between elements, etc). All random factors determining thermal regimes of systems are
changed within intervals of their random tolerance values. Therefore uncertainty of these factors as
well as uncertainty of temperature distribution are interval stochastic too. But in the meantime at present
there are no adequate and effective mathematical and computer simulation methods for modeling
of interval stochastic temperature fields in complex technical systems. In this paper the mathematical
and computer simulation method for modeling of interval-stochastic temperature fields in
technical (electronic) systems, are developed. The temperature fields depend on interval character
of thermal input parameters of technical system and operational conditions. The modeling computer
simulation algorithm realized by computer program (STF-ElectronMod). Applying of these methods
and algorithm to an electronic system, are shown.
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