FORCED VIBRATIONS OF ROTARY SHAFTS MOUNTED ON VISCOELASTIC SUPPORTS AND THE RESULTS OF THEIR INDUSTRIAL IMPLEMENTATION
DOI:
https://doi.org/10.17605/Keywords:
Rotary shaft, forced vibrations, coaxial rotor, finite-element method, SOLIDWORKS, metal consumption, economic efficiency.Abstract
This paper examines the problem of forced linear vibrations of a system of coaxial rotors mounted on viscoelastic supports and presents the results of the practical implementation of the research findings in the grain-milling industry. A non-homogeneous system of integro-differential equations, constrained by servo-connections, is derived on the basis of Lagrange's equations of the second kind and solved by the Gauss method. A finite-element analysis carried out in the SOLIDWORKS software package shows 95-97% agreement between the theoretical results and actual production data. It is demonstrated that the localization of centrifugal rotary-shaft production leads to a 2-6% reduction in metal consumption, an 11-13% reduction in energy consumption, a 12.5-14.5% increase in the service life of the shafts and their drives, and an expected annual economic effect of 82.6 million soums.
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