| Coupled flexural-torsion vibration characteristics of the simulator on turbo-generator rotor coupled nonlinear vibration characteristics as the main study, firstly, against single-disc quality rotor model, the quality of typical faults imbalance, misalignment of coupled flexural-torsion vibration characteristics of the coupling nonlinear characteristics of the establishment of the rotor coupled flexural-torsion vibration coupled nonlinear differential equations of motion and coupled flexural-torsion vibration on the dynamic characteristics, identify its movement of the coupled flexural-torsion vibration, bending to reverse the effects。Secondly, the model based on continuous quality shaft coupled flexural-torsion vibration coupling basic characteristics of the rotor shaft for the establishment of the mathematical model, deduced the dynamic equations coupled vibration. Group to 300 MW turbo-generator rotor shaft simulator for the study, the use of the transfer matrix analysis of simulated machine shaft coupled flexural-torsion vibration characteristics of the Turbo-generator shaft coupled flexural-torsion vibration。Finally in the ANSYS environment can be used to establish a shaft coupled flexural-torsion vibration analysis of the inherent characteristics of the finite element model, and get the natural frequencies and mode shapes, Simulation of coupled flexural-torsion vibration to talk about。Analysis of the results of the two methods are the same. |
