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Technical testing and analysis However, all these techniques rely on the analysse of constant— or possibly fluctuating but stationary— operating regime i. Have you forgotten your login?

Information available as an option. 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. All the lines are busy at the moment, please try again in a moment. In the last decades, vibration-based condition monitoring of rotating machine has gained special interest providing an efficient aid for maintenance in the industry.

The second type includes random periodically-correlated waveforms known as second-order cyclostationary. This service is produced by Kompass. But these works remain limited, dispersed and generally vbratoire supported by theoretical frameworks.


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Dany Abboud 1 Details. Please fill in your login and password Login. Vibration-based condition monitoring of rotating machines in nonstationary regime.

Dany Abboud 1 AuthorId: 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.

Click on one of the icons to share the company. In this work, the nonstationarity of the regime is confined to that of the speed— i. Turnover Information available as an option.

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.

You might also like. We have elaborated this strategy by distinguishing two types of signatures. Discover the best events for your business. Create your web page Haltools: In this case, these techniques fail in analyzing the produced vibration signals. Friday, October 26, – Help with expert advice. Nowadays, many efficient techniques are well-established, rooted on powerful tools offered in particular by the theory of cyclostationary processes.

Analyse de vibration

In order to reach this goal, the adopted methodology consists in extending the cyclostationary framework together with its dedicated tools.

Many tools have ve conceived whose performances have been successfully tested on simulated and real vibration signals. The data we collect are only those necessary for the proper use of our service. 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.


Pilotage en vibration | Analyse NVH | m+p international

You might also like: Description Key figures Executives Activities. Unfortunately, most monitored machines used in the industry operate under nonstationary regimes in order to fulfill the task for which they have been designed.

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