Diagnostic of Rolling Element Bearings with Envelope Analysis in Non-Stationary Conditions

Borghesani, Pietro, Ricci, Roberto, Chatterton, Steven, & Pennacchi, Paolo (2014) Diagnostic of Rolling Element Bearings with Envelope Analysis in Non-Stationary Conditions. In Dalpiaz, Giorgio, Rubini, Riccardo, D'Elia, Gianluca, Cocconcelli, Marco, Chaari, Fakher, Zimroz, Radoslaw, et al. (Eds.) Advances in Condition Monitoring of Machinery in Non-Stationary Operations. Springer Berlin Heidelberg, pp. 127-135.

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In the field of rolling element bearing diagnostics, envelope analysis has gained in the last years a leading role among the different digital signal processing techniques. The original constraint of constant operating speed has been relaxed thanks to the combination of this technique with the computed order tracking, able to resample signals at constant angular increments. In this way, the field of application of this technique has been extended to cases in which small speed fluctuations occur, maintaining high effectiveness and efficiency. In order to make this algorithm suitable to all industrial applications, the constraint on speed has to be removed completely. In fact, in many applications, the coincidence of high bearing loads, and therefore high diagnostic capability, with acceleration-deceleration phases represents a further incentive in this direction. This chapter presents a procedure for the application of envelope analysis to speed transients. The effect of load variation on the proposed technique will be also qualitatively addressed.

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2 citations in Web of Science®

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ID Code: 66507
Item Type: Book Chapter
Additional Information: Lecture Notes in Mechanical Engineering : Proceedings of the third International Conference on Condition Monitoring of Machinery in Non-Stationary Operations CMMNO 2013
Keywords: Envelope spectrum, Order tracking, variable speed, rolling element bearings
DOI: 10.1007/978-3-642-39348-8_10
ISBN: 9783642393488
ISSN: 2195-4364
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Dynamics Vibration and Vibration Control (091304)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 21 Jan 2014 22:42
Last Modified: 24 Oct 2015 16:44

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