Численный анализ влияния соотношения чисел лопаток статора и ротора на нестационарные нагрузки и режимы колебаний лопаток

Abstract

Using the numerical method for calculation of coupled problem of unsteady aerodynamics and elastic blade oscillations there performed the numerical analysis for influence of stator-rotor blade number ratio on aeroelastic blade row characteristics. There shown that choice of optimal blade number ratio allows to reduce critically the unsteady loads acting on the rotor blades, and the amplitudes of blade oscillations.