Monitoring procedure in frequency domain using intensity estimation of the energy of the envelope

Proceedings of the 15th IFAC Symposium on System Identification, SYSID 2009, series System Identification, vol. 15, no. 1, 2009
Author(s):Pichler K., del Re L., Schrems A., Würtele M.
In this paper a monitoring procedure for a rotating machine is presented, based on a frequency domain approach. The energy content of several frequency regions is evaluated by analyzing the spectral envelope of 2-dimensional acceleration measurements mapped into higher-dimensional space. It is shown that such a monitoring procedure is feasible under non conservative restrictions. The paper ends with three industrial relevant examples where the monitoring procedure is illustrated.
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