Abstract：High pressure rotor of the aero-engine consists of high pressure compressor (HPC) rotor and high pressure turbine (HPT) rotor, the concentricity of which is the most crucial assembly parameter, directly influences vibration of whole engine. The concentricity inspection technique hardly meets the requirement in terms of accuracy and stability. This paper developed the fast simulation program of high pressure rotor concentricity based on HPC/HPT rotors’ measured data and its installation phase. The simulation using high pressure rotor assembly parameter data samples of one aero-engine demonstrates that the simulated concentricity has high precision prediction. This paper presented the installation phase optimization technique on HPC/HPT rotors, and the simulation using above history assembly data samples and experimental verification demonstrates less concentricity expectation than the ordinary phase decision method. The results provide the model support for simulation prediction and process decision during high pressure rotor assembly, which escalates the assembly technology model application and digitalization development.
2022, 
