Application of vector spectrum analysis technology in vibration analysis of rotor system

In view of the shortcomings of vector spectrum analysis technology in the application of rotor vibration analysis, from the perspective of rotor system dynamics, the relationship between vector spectrum parameters and system dynamics parameters is derived from the perspective of rotor system dynamics, and it is theoretically proved that under the premise of constant speed, the oscillation angle and vibration-vector ratio are only related to the stiffness coefficient and damping coefficient of the system, and the research results provide a certain theoretical basis for the application of vector spectrum analysis technology for rotor system vibration analysis and system parameter identification.