Detection of crack shaft in a rotating machine is one of the most challenging problems in equipment predictive maintenance. In the available literature, various crack detection methods have been applied to study the dynamic behavior of a cracked shaft. This study concerned with the dynamic behavior of the rotor. We have also studied the different types of transverse cracks and the different methods that have been applied for shaft crack diagnosis. We have also studied the forces applied to the rotor and the movement in order to determine the stress, strain and mode shapes. Was also addressed in this note to study the issues of cracks in three-dimensional in solid objects by using ABAQUS software which based to finite element to give the results. The six first natural frequencies of rotor were decreased after cracking in the shaft critical zone, and this reduce is nonlinear; however the corresponding displacements were increased. Also the stress and strain increased with crack initiation. This reduces of mode shapes frequencies can be used indicator for diagnostic and predicted the life time of rotor.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten
Sie möchten Zugang zu diesem Inhalt erhalten? Dann informieren Sie sich jetzt über unsere Produkte:
- Prediction Life of Horizontal Rotors by Natural Frequency Evolution
- Springer Berlin Heidelberg
in-adhesives, MKVS, Zühlke/© Zühlke