Cracked Rotors von Nicoló Bachschmid | A Survey on Static and Dynamic Behaviour Including Modelling and Diagnosis | ISBN 9783642014857

Cracked Rotors

A Survey on Static and Dynamic Behaviour Including Modelling and Diagnosis

von Nicoló Bachschmid, Paolo Pennacchi und Ezio Tanzi
Mitwirkende
Autor / AutorinNicoló Bachschmid
Autor / AutorinPaolo Pennacchi
Autor / AutorinEzio Tanzi
Buchcover Cracked Rotors | Nicoló Bachschmid | EAN 9783642014857 | ISBN 3-642-01485-2 | ISBN 978-3-642-01485-7
Leseprobe

Cracked Rotors

A Survey on Static and Dynamic Behaviour Including Modelling and Diagnosis

von Nicoló Bachschmid, Paolo Pennacchi und Ezio Tanzi
Mitwirkende
Autor / AutorinNicoló Bachschmid
Autor / AutorinPaolo Pennacchi
Autor / AutorinEzio Tanzi

Cracks can develop in rotating shafts and can propagate to relevant depths without affecting consistently the normal operating conditions of the shaft. In order to avoid catastrophic failures, accurate vibration analyses have to be performed for crack detection. The identification of the crack location and depth is possible by means of a model based diagnostic approach, provided that the model of the crack and the model of the cracked shaft dynamical behavior are accurate and reliable.

This monograph shows the typical dynamical behavior of cracked shafts and presents tests for detecting cracks. The book describes how to model cracks, how to simulate the dynamical behavior of cracked shaft, and compares the corresponding numerical with experimental results. All effects of cracks on the vibrations of rotating shafts are analyzed, and some results of a numerical sensitivity analysis of the vibrations to the presence and severity of the crack are shown. Finally the book describes some crack identification procedures and shows some results in model based crack identification in position and depth.

The book is useful for higher university courses in mechanical and energetic engineering, but also for skilled technical people employed in power generation industries.