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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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Please fill in your login and password Login. However, all these techniques rely on the assump-tion of constant— or possibly fluctuating but stationary— operating regime i. You might also like. Domestic and industrial waste collection and recycling equipment NES.

This issue, tournantd, 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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But these works remain limited, dispersed and generally not supported by theoretical frameworks. Share this company profile. Business tools and solutions designed for the global marketplace. In the last decades, vibration-based condition monitoring of rotating machine has gained special interest providing an efficient aid for maintenance in the industry. Friday, October 26, – 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.

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

Turnover Information available as an option. You might also like: Information available as an option. In this case, these techniques fail in analyzing the produced vibration signals. Frequent updates ensuring high quality data. Many tools have been conceived whose performances have been successfully tested on simulated and real vibration signals.

By continuing to use our services beginning May 25,you acknowledge and agree to our updated Privacy Policy and Cookies Policy. The first type includes deterministic waveforms known machin first-order cyclostationary. Have you forgotten your login? The second type includes random periodically-correlated waveforms known as second-order cyclostationary.


Inria – Vibration-based condition monitoring of rotating machines in nonstationary regime

Help with expert advice. 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. This service is produced by Kompass. Frequent updates ensuring high quality data Secure online payment Help with expert advice Dedicated customer service team.

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

Three different but complementary visions have been proposed to deal with the changes induced by the nonstationarity of the operating speed. Create your web page Haltools: