Title :
Understanding motor shaft failures
Author :
Bonnett, Austin H.
Author_Institution :
US Electr. Motors Div., Emerson Electr. Co., St. Louis, MO, USA
Abstract :
The majority of all shaft failures are caused by a combination of various stresses which act upon the rotor assembly. As long as they are kept within the intended design and application limits, shaft failures should not occur during the expected life of the motor. This article provides the reader the methodology to conduct an analysis that will properly identify failures and hopefully take the necessary steps to eliminate them
Keywords :
electric motors; failure analysis; machine testing; reliability; rotors; analysis methodology; application limits; design limits; failure elimination; failure identification; motor shaft failures; rotor assembly stresses; Building materials; Capacitive sensors; Compressive stress; Failure analysis; Optical microscopy; Scanning electron microscopy; Shafts; Spline; Steel; Tensile stress;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/2943.783120
