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  5. ANALYSIS OF THE SPECTRUM OF THE NATURAL FREQUENCIES AND THE RELATIVE DISTRIBUTION OF STRESSES IN THE VIBRATIONS OF THE SINGLE-CRYSTAL TURBINE BLADES UNCOOLED

ANALYSIS OF THE SPECTRUM OF THE NATURAL FREQUENCIES AND THE RELATIVE DISTRIBUTION OF STRESSES IN THE VIBRATIONS OF THE SINGLE-CRYSTAL TURBINE BLADES UNCOOLED

M.A. Chugay
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The analysis of influence of orientation of crystallography axes and type of bracer connections is in-process conducted on the spectrum of natural frequencies, forms and distributing of relative tensions. The three-dimensional eventual-element model of driving wheel, taking into account the geometrical form of object, type of bracer connections and orientation of crystallography axes, is developed. The numerical analysis of influence of polycrystal and single-crystal material of shoulder-blades is conducted with the orientation of crystallography axes [001] and [111] on natural frequencies, forms of vibrations and distributing of relative stresses of driving wheel with continuous and cut bracer connections.
Keywords: workings shoulder-blades, monocrystalline material, crystallography orientation, method of eventual elements, forms of vibrations, localization of tensions, spectrum of frequencies