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Share this company profile. INSA de Lyon, Unfortunately, most monitored machines used in the industry operate under nonstationary regimes in order to fulfill the task for which they have been designed. All the lines are busy at the moment, please try again in a moment.

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

The first type includes deterministic waveforms known as first-order cyclostationary. But these works remain limited, dispersed and generally not supported by theoretical frameworks. Frequent updates ensuring high quality data Secure online payment Help with expert advice Dedicated customer service team. In this work, the nonstationarity of the regime is confined to that of the speed— i.

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We have elaborated this strategy by distinguishing two types of signatures. 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.


Friday, October 26, – In order to reach this goal, the adopted methodology consists in extending the cyclostationary framework together with its dedicated tools. Description Key figures Executives Activities. Nowadays, many efficient techniques are well-established, rooted on powerful tools offered in particular by the theory of cyclostationary processes.

Help with expert advice. However, all these techniques rely on the assump-tion of constant— or possibly fluctuating but stationary— operating regime i. You might also like: By continuing to use our services beginning May 25,you acknowledge and agree to our updated Privacy Policy and Cookies Policy. Click on one of the icons to viibratoire the company.

Dany Abboud 1 AuthorId: Turnover Information available as an option. Vibration-based condition monitoring of rotating machines in nonstationary regime.

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. Other classifications for some countries NAF Rev. In the last decades, vibration-based condition monitoring of rotating machine has gained special interest providing an efficient aid for maintenance vihratoire the industry. Technical testing and analysis 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.


Friday, September 23, – 4: Register Forgot your password? Frequent updates ensuring high quality data. Many tools have been conceived whose performances have been successfully tested on simulated and real vibration vibrqtoire. Information available as an option. Create your web page Haltools: In this case, these techniques fail in analyzing the produced vibration signals. Please fill in your login and password Login.

The second type includes random periodically-correlated waveforms known as second-order cyclostationary.

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Vibratoige service is produced by Kompass. Three different but complementary visions have been proposed to deal with the changes induced by the nonstationarity of the operating speed. The data we collect are only those necessary for the proper use of our service. You might also like. Business tools and solutions designed for the global marketplace.

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