Vibration and Stress Fluctuation in Cracked Shafts

A simply supported shaft with a transverse crack is investigated for its vibrational characteristics. The local flexibility due to the presence of the crack is represented by a 6 × 6 matrix for six degrees of freedom in a short shaft element which includes the crack. A finite element analysis is car...

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Veröffentlicht in:	Journal of sound and vibration 1994-02, Vol.169 (5), p.655-667
Hauptverfasser:	Sekhar, A.S., Prabhu, B.S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Drives Exact sciences and technology Fundamental areas of phenomenology (including applications) Measurement and testing methods Measurement methods and techniques in continuum mechanics of solids Mechanical engineering. Machine design Physics Shafts, couplings, clutches, brakes Solid mechanics Structural and continuum mechanics
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Beschreibung
Zusammenfassung:	A simply supported shaft with a transverse crack is investigated for its vibrational characteristics. The local flexibility due to the presence of the crack is represented by a 6 × 6 matrix for six degrees of freedom in a short shaft element which includes the crack. A finite element analysis is carried out for free and forced vibrations. The possibilities of backward whirl due to the crack are presented. The severity of the fluctuating bending stresses in shafts due to the crack is associated with the backward whirl of the rotor.
ISSN:	0022-460X 1095-8568
DOI:	10.1006/jsvi.1994.1039