Abstract
The aim of this paper is to use a numerical model to estimate the minimum amplitude of a localized and angularly periodic perturbation which should be detected through the analysis of Power Spectral Density (PSD) of Instantaneous Angular Speed (IAS). To that purpose, a numerical torsional model of a test bench is developped. Particular attention is paid to precise introduction of this perturbation in the numerical device. It is modelled in the angular domain as a half sinus without any loss of generalization. The main results is that perturbation with a magnitude 300 times lower than the friction bearing torque should be detected through the analysis of the PSD of IAS for a representative inertia.
IAS: Instantaneous Angular Speed.
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Adeline, B., Hugo, A., Didier, R. (2012). Numerical Investigations on the Magnitude of Disturbance That Could Be Detected through IAS Monitoring. In: Fakhfakh, T., Bartelmus, W., Chaari, F., Zimroz, R., Haddar, M. (eds) Condition Monitoring of Machinery in Non-Stationary Operations. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28768-8_24
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DOI: https://doi.org/10.1007/978-3-642-28768-8_24
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-28767-1
Online ISBN: 978-3-642-28768-8
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