ANALYSIS OF VIBRATIONS OF GAS-TURBINE ВLADING WITH ONE SINGLE-CRYSTAL BLADES

Yu.S. Vorobyov, M.A. Chugay, V.N. Romanenko, S.B. Kulishov, A.N. Skritskij

The paper is devoted to numerical analysis of vibrations of single-crystal blades, used in modern turbo-engine. Peculiarity of vibrations stress localization of one single-crystal cooled and un-cooled gas-turbine blades are considered. Influence crystallography axes orientation of material and type of should on the spectrum of natural frequencies, forms and distribution of stress intensities for vibrations of gas turbine wheels with single-crystal blades is analyzed. The results of the previous investigations are summarized.

Key words: single-crystal material, crystallography axes orientation, stress intensity, shroud, blade, wheels.