A METHOD FOR EFFICIENCY CALCULATING OF HETEROGENEOUS VIBRATION DAMPENING COATING
FOR COMPLEX SHAPED LOAD-BEARING STRUCTURES 

Litvinov Alexander Nikolaevich, Candidate of engineering sciences, professor, sub-department of machines and devices reliability, deputy dean of the department of correspondence tuition, Penza State University, pyp@pnzgu.ru

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The approximate method of design of multilayer vibration damping coatings efficiency with reference to awkward shape bearing structures is developed. The structure with a coating is observed as the multilayer heterogeneous visco-elastic structure. The method is based on presetting of free vibration shapes of a bearing structure, local approximation of these shapes, local approximation of a coatring on a curvilinear surface by a flat coating and calculation of relative energy dispersion with use of quasi-stationary approximation for deformation field in a coating. Satis-factory accuracy of the offered method is shown.

method of design, vibration damping efficiency, heterogeneous coating, awkward shape structures.