Accounting of parameter scatter errors in the thermal model of rod elements for radiators of cooling systems radioelectronic equipment: a fuzzy-set method
Keywords:
radio-electronic devices, thermal modes of operation, radiator structures, rod elements, calculation thermal models, uncertainty of initial parameters, fuzzy calculation methods, heuristic principle of generalizationAbstract
The issues of applying the apparatus of the theory of fuzzy calculations in solving the problem of taking into account the spread of initial geometric and physical parameters in the analytical calculation model of heat removal from the body of a radio-electronic device using finned or needle-pin radiator designs are considered. The objective of the study is to obtain updated design data on the characteristics of the core structural elements of radiators that provide specified levels of heat transfer and overheating temperature of the device in the radiator mounting area. As a method for studying the problem under consideration, it is proposed to introduce fuzzy-set representations for uncertain initial design parameters, which are arguments in the functional relationships of the deterministic version of the analyzed model, and obtain the corresponding output parameters in fuzzy-set form based on the use of a level-modified version of the heuristic generalization principle.
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