Исследование влияния неосесимметричных форм колебаний дисков на вибрационные характеристики роторной системы

Abstract

The tendency of engines mass reduction leads the decrease of shafts and disks stiffness, appearance stator parts stiffness anisotropy and shift of nonaxisymmetrical vibration modes toward operating frequency range. Commonly used 1D beam models are not suitable for modeling of rotor system vibration behavior with such features. There is offered a method of 3D finite element modeling of rotor systems based on experimentally verified superelements.