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The data we collect are only those necessary for the proper use of our service. But these works remain limited, dispersed and generally not supported by theoretical frameworks.

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Dany Abboud 1 AuthorId: In order to reach this goal, the adopted methodology consists in extending the cyclostationary framework together with its dedicated tools. This service is produced by Kompass. Frequent updates ensuring high quality data Secure online payment Help with expert advice Dedicated customer service team.

Analyse de vibration

Have you forgotten your login? However, all these techniques rely on tournannte assump-tion of constant— or possibly fluctuating but stationary— operating regime i. In this work, the nonstationarity of the regime is confined to that of the speed— i. We have elaborated this strategy by distinguishing two types of signatures.


In this case, these techniques fail in analyzing the produced vibration signals. In the last decades, vibration-based condition monitoring of rotating machine has gained special interest providing an efficient aid for maintenance in the industry.

Vibration-based condition monitoring of rotating machines in nonstationary regime. Dany Abboud 1 Details. Business tools and solutions designed for the global marketplace. Information available as an option. By continuing to use our services beginning May 25,you acknowledge and agree to our updated Privacy Policy and Cookies Policy.

Create your web page Haltools: The first type includes deterministic waveforms known as first-order cyclostationary. Three different but complementary visions have been proposed to deal with the changes induced by the nonstationarity of the operating speed.

The principal goal of this thesis is to partially fill in this gap on the basis of a theoretical formalization of the subject and a systematic development of new dedicated signal processing tools. The second type includes random periodically-correlated waveforms known as second-order cyclostationary. Unfortunately, most monitored machines used in the industry operate under nonstationary regimes in order to fulfill the task for which they have been designed.

Friday, October 26, – Friday, September 23, – 4: Technical testing and analysis Many tools have been conceived whose performances have been successfully tested on simulated and real vibration signals. Turnover Information available as an option.


INSA de Lyon, Nowadays, many efficient techniques are well-established, rooted on powerful tools offered in particular by the theory of cyclostationary processes. All the lines are busy at the moment, please try again in a moment.


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You might also like: The proposed solution consists in generalizing the first-order cyclostationary class to the more general first-order cyclo-non-stationary class which enfolds speed-varying deterministic signals. This issue, therefore, has occupied the scientific committee in the last decade and some sophisticated signal processing techniques have been conceived to deal with regime variability.

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