IDENTIFICATION OF СOMPLICATED MECHANICAL SYSTEM PARAMETERS AT THERMAL FORCE ACTION
Abstract
Empirical dependences for calculating reliability and mass of an aviation engine are obtained with the help of a regression analysis method and test of the obtained expression adequacy has been carried as well.
A model for degradation of the effective, elastic and heat-conducting material properties of engine parts due to spreading growth in physical and mechanical properties in comparison with data-sheet values in the process of operation without continuity violation has been developed and described in the paper. The paper also presents a model for emergence and accumulation of such damages as micro-pores, micro-cracks. The paper evaluates a critical concentration of damages with due account of a percolation theory at which a cluster-crack is formed in some local space.
About the Authors
A. V. Chigarev
Belarussian National Technical University
D. N. Mironov
Belarussian National Technical University
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Review
For citations:
Chigarev A.V., Mironov D.N. IDENTIFICATION OF СOMPLICATED MECHANICAL SYSTEM PARAMETERS AT THERMAL FORCE ACTION. Science & Technique. 2009;(1):38-42. (In Russ.)
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