ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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9
Issue
vol 60 / SEPTEMBER, 2017
Article
UDC 536.2

THERMAL RESISTANCE OF PERMANENT JOINT OF STRUCTURAL COMPONENTS

A. . Sokolov
Branch of “Research Project Center of Optoelectronic Monitoring Complexes” of FSUE «Central Scientific Research Institute - Comet»; engineer


N. N. Tarnovsky
Kometa; Senior Scientist


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Abstract. Thermo physical and mathematical models are developed for joint of structural components. Thermal fields in elements are taken to be one-dimensional, coefficients of thermal conductivity of materials and heat transfer are supposed to be independent of temperature and coordinates; heat transfer through external surfaces of the elements is neglected. Exact expressions and approximate formulas in particular cases are derived for thermal resistance of the joint at coinciding and opposite directions of input and output thermal flows.
Keywords: thermal resistance, thermal conductivity, contact resistance.