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Fundamental and applied issues of mining

2021 year, number 2

ON THE PROBLEM OF DESIGNING THE ROTORS OF AXIAL MINE FANS AT HIGH ROTARY SPEEDS

E. Yu. Russkiy, N. V. Panova
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Mine fan, rotating blade, stress-strain state, forced and natural vibration frequencies, Ansys

Abstract

The results of investigations into the influence of different blade assembly designs on its stress-strain state and frequency properties in various operating modes are presented. It is found that at fan impeller diameters of more than 3000 mm, a part of blade assembly elements causes a significant stress concentration. Recommendations for designing such blade assemblies are given.