2018
DOI: 10.1051/matecconf/201816901015
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Numerical and experimental diagnosis of complex rotor system by time-frequency techniques

Abstract: Abstract. This paper describes the application of Discrete Wavelet Transform (DWT) to identify various types of nonlinear damage caused by, unbalance, rotor-stator contact and a breathing crack in rotating machinery. Multiple faults have been investigated based on numerical and experimental signal analysis using Fast Fourier Transform (FFT) and DWT. A four degree of freedom fully coupled model of the rotor-stator system that includes the nonlinear damage in the rotor vibrations was established using Energy pri… Show more

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Cited by 3 publications
(3 citation statements)
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“…The experiment was conducted on a modified Rotor Kit 4 Bently Nevada [3] (Fig. 2), the rig is constituted of a phase induction motor speed control connected to the driver shaft by a flexible coupling element.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The experiment was conducted on a modified Rotor Kit 4 Bently Nevada [3] (Fig. 2), the rig is constituted of a phase induction motor speed control connected to the driver shaft by a flexible coupling element.…”
Section: Methodsmentioning
confidence: 99%
“…When a system is rotating under the influence of the unbalanced mass, there is a huge possibility that undesired vibration occurs, which further may result into dysfunctions such as misalignment, unwanted noise, excessive stress in machine elements and also a high bearing thrust. This reduces the reliability of rotating parts and may cause premature failure in the bearing system [3].…”
Section: Introductionmentioning
confidence: 99%
“…Many consequences may be occurring like excessive noise, vibrations, and stress. This decreases the reliability of the operating system and may lead to sudden breakdowns [3]. Many field applications depend on the usage of vertical turbine pumps such as irrigation, power generation, and petrochemical industries.…”
Section: Introductionmentioning
confidence: 99%