Analysis on vibration characteristics of mistuned bladed disk assemblies with Coriolis force

An actual bladed disk model with rotating effect was established using the finite element method(FEM),and ANSYS11.0 was used to obtain the system mass,stiffness and damping matrix.The effects of Coriolis force and centrifugal force on the modal frequency and harmonic response characteristics of the tuned bladed disk were investigated.Then,the modal localization and response characteristics of the mistuned bladed disk were researched.The investigation indicates that Coriolis force has significant influences on the modal and response characteristics of both the tuned and mistuned system.