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Hybrid Algorithm of Computational Diagnostics of Hydromechanical Systems

Authors: Sulimov V.D., Shkapov P.M. Published: 14.09.2014
Published in issue: #4(55)/2014  
DOI:

 
Category: Mechanics  
Keywords: inverse problem, criterion function, Lipschitz constant, smoothing approximation, global optimization, Metropolis algorithm, regularization, hybrid algorithm

Consideration is being given to problems of computational diagnostics of hydromechanical systems. For the mathematical model the inverse problem is formulated and during its solving there is optimization. It is suggested that particular criteria are continuous, Lipschitzian, not everywhere differentiable, multiextremal functions. Search for global solutions carried out with using new hybrid algorithms uniting stochastic scanning algorithm of space variables and the deterministic methods of local search. Numerical examples of the model diagnostics of the coolant phase constitution in the reactor primary circuit were presented.

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