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Application of averaged instantaneous power spectrum for diagnostics of machinery operating under non-stationary operational conditions |
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| Authors: | Jacek Urbanek Tomasz Barszcz Radosław Zimroz Jerome Antoni |
| Affiliation: | 1. Department of Mechanical Engineering and Robotics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland;2. Diagnostics and Vibro-Acoustics Science Laboratory, Pl Teatralny 2, 50-051 Wroclaw, Poland;3. Vibrations and Acoustic Laboratory, INSA of Lyon, University of Lyon, F-69621 Villeurbanne Cedex, France |
| Abstract: | Vibration analysis of machines operating under non-stationary operational conditions requires special attention. This refers to the necessity of use of order tracking algorithms together with additional advanced signal processing methods, especially when faults indicators of interest are located in resonance frequency ranges. |
| Keywords: | Instantaneous power spectrum Non-stationary operational conditions Cyclostationarity Wind turbines |
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