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Experimental Study of Rotor Rub-impact Fault

Qiao Bao-dong

Open publisher page 1 citations

Abstract

In order to study the nonlinear dynamics of a rubbing rotor system.An special device were designed to simulate the single point rubbing,multi-point rubbing,local rub-impact,and even full rubbing,The ZT-3 rotor experimental rig is used to simulate the rubbing fault.The vibration of the rubbing rotor was observed for different conditions which caused by change the speed of rotor and the gap between rotor and stator,The vibration waveforms,spectrums,orbits were used to analyze the nonlinear responses.The experimental results show that the new rubbing device can better simulate the real rubbing of the rotor and stator,and it is helpful to promote the observations of rub-impact fault.

About this research paper

What this paper is about

In order to study the nonlinear dynamics of a rubbing rotor system.An special device were designed to simulate the single point rubbing,multi-point rubbing,local rub-impact,and even full rubbing,The ZT-3 rotor experimental rig is used to simulate the rubbing fault.The vibration of the rubbing rotor was observed for different conditions which caused by change the speed of rotor and the gap between rotor and stator,The vibration waveforms,spectrums,orbits were used to analyze the nonlinear responses.The experimental results show that the new rubbing device can better simulate the real rubbing of the rotor and stator,and it is helpful to promote the observations of rub-impact fault.

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Available abstract

In order to study the nonlinear dynamics of a rubbing rotor system.An special device were designed to simulate the single point rubbing,multi-point rubbing,local rub-impact,and even full rubbing,The ZT-3 rotor experimental rig is used to simulate the rubbing fault.The vibration of the rubbing rotor was observed for different conditions which caused by change the speed of rotor and the gap between rotor and stator,The vibration waveforms,spectrums,orbits were used to analyze the nonlinear responses.The experimental results show that the new rubbing device can better simulate the real rubbing of the rotor and stator,and it is helpful to promote the observations of rub-impact fault.

Key concepts: Rubbing, Rotor (electric), Stator, Fault (geology), Vibration, Waveform, Nonlinear system, Point (geometry)

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