✦ LIBER ✦

A TIME DOMAIN METHOD FOR THE LOCALIZATION OF CRACKS IN ROTORS

✍ Scribed by S. Seibold; K. Weinert

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 879 KB
Volume: 195
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1996.0403

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✦ Synopsis

This paper deals with the localization of cracks in rotating machinery, based on measured vibrations. The method used is a time domain identification algorithm: the Extended Kalman Filter (EKF). The localization is performed by designing a bank of EKFs, in which each filter is tuned to a different damage hypothesis: i.e., in this case the specific crack location. By calculating the probabilities of the different hypotheses, the crack can be localized and its depth can be determined. The procedure is applied to a simulated rotor and to a rotor test rig.

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