SHAFT LATERAL AND TORSIONAL VIBRATION RESPONSES TO BLADE(S) RANDOM VIBRATION EXCITATION

(2004) SHAFT LATERAL AND TORSIONAL VIBRATION RESPONSES TO BLADE(S) RANDOM VIBRATION EXCITATION. The Arabian Journal for Science and Engineering, 29 (1C). pp. 39-67.

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Abstract

In this study, an experimental set-up for blades-shaft vibration monitoring under blade(s) random vibration excitation is used. The set-up natural frequencies and mode shapes are found using the ANSYS finite element package. The blades and shaft lateral and torsional vibration are monitored using blades strain-gages, bearing accelerometers and shaft torsional strain-gages stations. The results showed that the shaft torsional vibration measurement represents the blade(s) vibration more closely than the bearing accelerometers. In particular, the blades vibration at low frequencies corresponding to the blades bending and shaft torsional coupled modes is closely represented by the shaft torsional vibration signals. The results of this study increased the confidence in using the torsional vibration measurement for blades vibration identification and shed more light on the nature of coupling between the blade bending and shaft torsional vibration that occur at low frequencies.

Item Type: Article
Uncontrolled Keywords: Shaft, Torsional, Lateral, Vibration, Strain-Gages, Accelerometer, Coupling, Experimental, Blade(s), Natural Frequencies, Mode Shapes, Random Vibration.
Subjects: Mechanical
Electrical
Divisions: College Of Computer Sciences and Engineering > Information and Computer Science Dept
Depositing User: LAHOUARI GHOUTI
Date Deposited: 18 Jun 2008 11:23
Last Modified: 01 Nov 2019 16:46
URI: http://eprints.kfupm.edu.sa/id/eprint/9138