NON-PROPORTIONAL NONLINEAR DAMPING IN EXPERIMENTAL BLADED DISK

摘要: Paper is concerned with the flexural vibrations of imperfect bladed circular disk by analytical and numerical solutions. Disk imperfection results from additional two groups damping heads fixed on opposite ends one diameter, which introduces point imperfections in mass, stiffness nonlinear non-proportional distribution properties. The aim this study to investigate influence friction among added decrease resonance amplitudes. Examples based application equivalent linearized show properties such dampers.