MODELLING OF ROTATING DISK VIBRATION WITH FIXED BLADES

The paper presents the method for the mathematical modelling of bladed disk vibrations. The blades are considered as one dimensional continuum fixed with three-dimensional elastic disk centrally clamped into turbine rotor rotating with constant speed. A dynamic analysis and optimization of the bladed disk vibration with damping elements requires a development of the efficient method pointing to the bladed disk model with relatively small DOF number. In the future, such model will enable simulations of the whole system nonlinear vibration influenced by slip contact interactions in inner couplings between blades.