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Archive of Applied Mechanics
Erschienen in: Archive of Applied Mechanics 11/2017

19.08.2017 | Original

Forced vibration analysis of rotors with an open edge crack based on a continuous vibration theory

verfasst von: Alireza Ebrahimi, Mahdi Heydari, Mehdi Behzad

Erschienen in: Archive of Applied Mechanics | Ausgabe 11/2017

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Abstract

In this paper, the forced vibration of a cracked rotor with an open edge crack has been studied by a new continuous model for flexural vibration of cracked rotors proposed in Ebrahimi et al. (J Sound Vib 333:3522–3535, 2014). The cracked rotor behavior under the external excitation of gravity and unbalance forces is presented. Since the governing equation is linear, using the superposition principle the responses of the cracked rotor to the gravity and unbalance forces are calculated separately. Then, the total response is calculated by summing these two responses. Each of these two responses is found by using a modified Galerkin method. The effect of the crack in the presence of the gravity and unbalance forces on the time response, frequency spectrum, frequency response curve and orbit diagram of the rotor is analyzed. Results can be used for the crack identification of rotors.
Vorheriger Artikel Green’s functions for the magneto-electro-elastic anisotropic half-space and their applications to contact and crack problems
Nächster Artikel Vibration response analysis of rubbing faults on a dual-rotor bearing system

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Metadaten
Titel
Forced vibration analysis of rotors with an open edge crack based on a continuous vibration theory
verfasst von
Alireza Ebrahimi
Mahdi Heydari
Mehdi Behzad
Publikationsdatum
19.08.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
Archive of Applied Mechanics / Ausgabe 11/2017
Print ISSN: 0939-1533
Elektronische ISSN: 1432-0681
DOI
https://doi.org/10.1007/s00419-017-1295-0

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