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The Experiment-Calculated Method of the Ordered Structure Coatings Optimal Parameters Determination
N. Schitov
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DOI:10.17265/2161-6213/2017.7-8.006
All-Russia Reasearch Institute of Automatics (VNIIA), Moscow Post Office, P.O. Box 918, Moscow 101000, Russia
The new experiment-calculated method to determine the optimal ordered structures (multilayered coatings among them) parameters is worked out. It’s based on the consequence of the Pontryagin maximum principle, proved in the article: “At a small modulation depth of the material performance’s control parameter its variation law is determined by the sign of the inverse Fourier transformation of the material’s frequency-performance characteristic (FPC)”. The method’s advantages are illustrated by the optimization of the superhard TiN/VN multilayered coating’s parameters and the frequency variation law to suppress parametric oscillation.
Metamaterials, ordered structure coatings, superhard coatings, optimal control theory, frequency-performance characteristic, parametric oscillation.