The present paper summarizes the experiences and methods in dealing with those motor vibration troubles in combination with the overall process of checking and repairing a main drive motor vibration trouble in the mill.

The reason, detriment, inspection and prevention of common vibration troubles of turning machinery have been presented in the paper, which can be taken as the reference for the people of equipment installing, operating or managing, etc.

Vibration Fault Analysis and Diagnosis for the Rotor System;

The complicated vibration fault of Unit 2 was eliminated successfully,which is of referential value to the treatment of vibration faults of similar units.

and explain how to diagnosis vibration fault with forward direction logic,the accuracy of fault diagnosis is improved.

Analysis and dealing with of vibration failure of N1. 0-35 steam turbine;

The paper recommends the amplitude (peak value) and speed (real effective value) as well as the acceleration (peak value) detected from rotary equipment by HY103 portable vibration detector, and diagnoses the vibration failure of the equipment by calculating the primary vibration frequency.

The 12 kinds of typical characteristics of vibration failure taking place in turbo generators were put forward in theory.

Study on on-line diagnostic method for rotor faults of high voltage explosion-proof motor based on evidence theory;

This paper focus on the study of rotor faults diagnosis using current monitoring method for squirrel cage induction motors, and concludes several effective methods such as FFT, wavelet, park s vector approach and artificial neural network method.

Detection of turbo-generator rotor faults is primary important because of the large mechanical stress and thermal loads on the continuously high-speed rotating rotors.