Theoretical and experimental identification of the simultaneous occurrence of unbalance and shaft bow in a Laval rotor
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- 作者：Fabio Dalmazzo Sanchesa ; dalmazzo@ct.ufrn.br" class="auth_mail" title="E-mail the corresponding author ; Robson Pederivab ; robson@fem.unicamp.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Identification of multiple faults ; Correlation analysis ; Model order reduction ; Optimization ; Rotor dynamics
- 刊名：Mechanism and Machine Theory
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：101
- 期：Complete
- 页码：209-221
- 全文大小：677 K
文摘
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A method of fault identification based on correlation matrices is proposed.
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Two simultaneous and synchronous to the machine´s operating speed faults are studied: unbalance and shaft bow.
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Model order reduction was used to identify the faults using the measurements at specific degrees of freedom of the rotor.
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The proposed methodology identified the fault parameters with success and without major deviations.