Estimation of the transfer function in rotating machinery with high instantaneous speed fluctuations

O. Matania, R. Klein, J. Bortman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The transfer function between the rotating component and the sensor complicates the diagnosis process. In this study transfer function estimation is considered, based on spectrum background estimation and minimum phase. The ability to suppress peaks that are smeared as result of high instantaneous speed fluctuations is limited, and thus we extend former work for mitigating this challenge. The synchronous properties of the gear signal are used in the cycle domain for separating them from the wideband noise using liftering in the cepstrum domain. The signal is divided to consecutive segments for enabling original phase restoration for converting back the low quefrencies of the noises that correspond to the original spectrum background to the time domain.

Original languageEnglish
Title of host publicationProceedings of ISMA 2022 - International Conference on Noise and Vibration Engineering and USD 2022 - International Conference on Uncertainty in Structural Dynamics
EditorsW. Desmet, B. Pluymers, D. Moens, S. Neeckx
PublisherKU Leuven, Departement Werktuigkunde
Pages732-738
Number of pages7
ISBN (Electronic)9789082893151
StatePublished - 1 Jan 2022
Event30th International Conference on Noise and Vibration Engineering, ISMA 2022 and 9th International Conference on Uncertainty in Structural Dynamics, USD 2022 - Leuven, Belgium
Duration: 12 Sep 202214 Sep 2022

Publication series

NameProceedings of ISMA 2022 - International Conference on Noise and Vibration Engineering and USD 2022 - International Conference on Uncertainty in Structural Dynamics

Conference

Conference30th International Conference on Noise and Vibration Engineering, ISMA 2022 and 9th International Conference on Uncertainty in Structural Dynamics, USD 2022
Country/TerritoryBelgium
CityLeuven
Period12/09/2214/09/22

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Acoustics and Ultrasonics

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