Control of rotary equipment unbalance with using statistical criteria comparison of vibration spectrum

Shvetsov, I. V.; Vankov, Yuri; Zagretdinov, A. R.

doi:10.1088/1757-899x/441/1/012051

Cited by 4 publications

(3 citation statements)

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“…where superscripts correspond to the step number in t, 1 + п i а is the right-hand side of the even equation of system (5) for the i mass divided by this mass with superscripts n for x and ν.…”

Section: Simulation Algorithm Resultsmentioning

confidence: 99%

“…Due to the individual motor elements' masses, stiffness and damping factors for these elements, such as mechanical transverse excitation of the rotating armature, collector, fan, bearings, vibrations of brush holder, poles and column (for example, due to the movement of the object with DC motor) ( Fig. 1), in modeling, we can observe the emergence of complex structures that can be described as a superposition of harmonic oscillations called normal oscillations [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Vibration model as a system of coupled oscillators in a direct current electric motor

et al. 2019

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This article describes a vibration model connected by individual nodes of a DC motor. The purpose of the article is a mathematical model allowing to predict the work of machines with a depreciation resource and search for ways to increase the information content of assessing the functioning of the rolling stock condition without dismantling them. Currently, the operational reliability of the DC motor is reduced after the development of the service life. Study and evaluation of the vibration effect on the brush-collector node. The main components of the DC motor (bearings, electrical brushes) are unrecoverable. Therefore, any interference with their normal operation leads to premature wear of the entire DC motor. Existing methods for life-extending maintain the operational reliability of a DC motor equal or close to the passport data for several years. This model allows vibration diagnostics without dismantling the DC motor and stopping the rolling stock. The mathematical model describes the oscillations of each node of the DC motor in the direction of movement of the rolling stock, showing the excess of the permissible value. After mathematical processing of the results, a machine reliability model under study is obtained (usually in the form of polynomials) as a function of the needed parametersthe influencing factors. Due to this model, pre-detected defects can save on repairs and maintenance in the future. This model is the basis of software for online diagnostics. The proposed model allows providing an objective use of repair and restoration compositions depending on the current technical condition, which will lead to an increase in the service life of the mechanism and savings in operating costs. On the one hand, extending the operating life of a DC motor should produce an economic effect, and on the other hand, technical measures to maintain operational reliability cause an increase in material costs.

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Section: Simulation Algorithm Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Vibration model as a system of coupled oscillators in a direct current electric motor

et al. 2019

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“…Vibration acceleration sensor 6 was attached to pipeline 2 in close proximity to valve 1. For recording and analysing signals, an original software package was used, written in LabView [12][13][14]. The analog-to-digital converter sampling frequency is taken equal 44.1 kHz.…”

Section: Experimental Studiesmentioning

confidence: 99%

Control the tightness of the pipeline valve shutter according to the change in the Hurst exponent of vibroacoustic signals

2019

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Methodology for considering climatic information during the analysis of the air conditioning systems energy efficiency

Salman

Kochenkov

Sulin

et al. 2022

AIP Conference Proceedings

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Control of rotary equipment unbalance with using statistical criteria comparison of vibration spectrum

Cited by 4 publications

References 0 publications

Vibration model as a system of coupled oscillators in a direct current electric motor

Vibration model as a system of coupled oscillators in a direct current electric motor

Control the tightness of the pipeline valve shutter according to the change in the Hurst exponent of vibroacoustic signals

Methodology for considering climatic information during the analysis of the air conditioning systems energy efficiency

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