Monitoring and Diagnostics of the Rotating System with an Active Magnetic Bearing

Gizelska, Małgorzata; Kozanecka, Dorota; Kozanecki, Zbigniew

doi:10.4028/www.scientific.net/ssp.198.547

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Active Magnetic Bearings (AMB) which has no mechanical contact between rotor and stator can be found in some industry applications such as high speed rotor and turbomolecular pumps, e.g. [1,2] . However, due to uneven materials, processing accuracy, assembly errors, and other reasons, rotating machinery always has a certain unbalance even with very precise machining of rotor parts.…”

Section: Introductionmentioning

confidence: 99%

Online unbalanced vibration suppression of a flexible rotor supported by active magnetic bearing

2020

Proceedings of 1st International Electronic Conference on Actuator Technology: Materials, Devices and Applications

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A rotor supported by active magnetic bearing could offer various advantages over conventional bearings, but due to their limited force capacity, and moreover, the rotor has a mass unbalance. The vibration originated from the rotor's unbalance mass impacts on the dynamic properties, and even cause major accidents. Large unbalance is typically responsible for high energy vibrations and the consequent decrease in machine life. So unbalance compensation on the rotating machine is necessary, especially for the high speed flexible rotor. While the unbalanced vibration suppression need shutdown and phase sensor. To solve the problem of online suppress the unbalance vibration without adding additional hardware equipment in active magnetic bearingrotor system, this paper proposes an online unbalanced vibration suppression based on the crosscorrelation method and influence coefficient method. The amplitude and phase are achieved by cross-correlation method and feedback tracking control method in steady state. The active magnetic bearings are used to simulate the unbalanced excitation, the compensation amplitude of unbalance vibration signal are calculated by the influence coefficient method. The method was found to be effective and practical. An online test program was performed on a flexible rotor based on based on the Matlab/Simulink and a dSPACE real time system, which showed that the unbalanced vibration suppression could satisfy the performance and required precision of rotating machine, and the amplitude of the fundamental frequency of the unbalance vibration is significantly reduced.

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Section: Introductionmentioning

confidence: 99%

Online unbalanced vibration suppression of a flexible rotor supported by active magnetic bearing

2020

Proceedings of 1st International Electronic Conference on Actuator Technology: Materials, Devices and Applications

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show abstract

“…The source of the measured signals for the database of the diagnostic system are sensors installed in the magnetic bearing, which are a necessary part of the modules to control the operation of the bearing [1,3,6].…”

mentioning

confidence: 99%

Diagnostics of the Mechatronic Rotating System

Gizelska

Kozanecka

Kozanecki

2013

KEM

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Nowadays rotating systems are equipped with diagnostic systems that are based on collecting and recording measurement data and that process a huge amount of data during the machine operation. An analysis of these data and their interpretation, as well as finding a correlation between process parameters and dynamics of the machine is a very important problem. In the paper, a concept and selected procedures of the specialized software using advanced information technology for the diagnostic system dedicated for systems of rotating machines with active magnetic bearings will be presented. It is used in the actual operation of the machine, enabling an increase of its reliability. The paper presents some selected results of control of the proper operation of the mechatronic rotating system, carried out in the automatic mode.

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Monitoring and Diagnostics of the Rotating System with an Active Magnetic Bearing

Cited by 2 publications

References 4 publications

Online unbalanced vibration suppression of a flexible rotor supported by active magnetic bearing

Online unbalanced vibration suppression of a flexible rotor supported by active magnetic bearing

Diagnostics of the Mechatronic Rotating System

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