2005•Journal of Tsinghua University(Science and Technology)Requires access
Experimental investigation of rotor rubbing faults
Fulei Chu
Open publisher page 1 citations
Abstract
The nonlinear dynamics of a rubbing rotor in a multi-disk rotor system were investigated with a device designed to simulate the full rubbing. The vibration of the rubbing rotor was observed for different conditions. The vibration waveforms, spectrums, orbits and Poincare's maps were used to analyze the nonlinear responses and bifurcation characteristics of the system during rubbing. The rubbing process of the rotor system was studied by changing the rotor speed. The results show that higher harmonic components and fractional harmonic components are excited when rubbing occurs with chaotic motion observed with severe rubbing.