Adaptive Technology Application for Vibration-Based Diagnostics of Roller Bearings on Industrial Plants

Mironov, Aleksey; Doronkin, Pavel; Priklonskiy, Alexander; Yunusov, Sergey

doi:10.2478/ttj-2014-0021

Cited by 4 publications

(3 citation statements)

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“…Using parameters of the similar modes obtained by different estimators, and in different tests, the modal enhancement procedures reduce the uncertainty of primary modal estimates. Enhancement procedures are similar to vibration waveform enhancement in vibration diagnostics [ 29 , 30 , 31 ], but are performed in an imaginary N -dimensional space, rather than in the phase plane.…”

Section: Methodsmentioning

confidence: 99%

Health Monitoring of Serial Structures Applying Piezoelectric Film Sensors and Modal Passport

Mironov¹,

Safonovs

Mironovs

et al. 2023

Sensors

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Health monitoring of critical structures, that form parts of serial operating objects, is a pressing task. The Operational Modal Analysis (OMA) techniques could be the optimal solution. An inexpensive measurement system, such as the OMA, uses a lot of sensors for structural response assessment. The health monitoring of serial structures has to also consider possible deviations between samples. A solution providing the OMA application includes the compact measurement system based on piezoelectric film sensors and modal passport (MP) techniques. For validation of the proposed approach, a series of five similar composite cylinders, with a network of piezoelectric film sensors, was used. Applying modal tests on the specimens, and using OMA with MP methods, the set of typical modal parameters was determined and analyzed. The results of the study confirmed the feasibility of the sensor network and its applicability for structural health monitoring of serial samples using OMA methods. The proven effectiveness of OMA/MP techniques, combined with a sensor network, provides a prototype of intelligent sensor technology, which can be used for health monitoring of structures, including those that are part of an operating facility.

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Section: Methodsmentioning

confidence: 99%

Health Monitoring of Serial Structures Applying Piezoelectric Film Sensors and Modal Passport

Mironov¹,

Safonovs

Mironovs

et al. 2023

Sensors

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show abstract

“…Modal enhancement is similar to the enhancement of the vibration waveform in vibration diagnostics [ 35 ], but is performed in an imaginary N -dimensional space, rather than in phase domain. The modal enhancement requires the sequence of modal estimate transformations, including normalizing the modal shape (eigenvectors), modes grouping, and the phase alignment of eigenvectors.…”

Section: Methodsmentioning

confidence: 99%

Static Loads Influence on Modal Properties of the Composite Cylindrical Shells with Integrated Sensor Network

Mironov¹,

Kovaļovs

Chate

et al. 2023

Sensors

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This paper presents the results of experimental and numerical studies of the dynamic parameters of composite cylindrical shells loaded under axial tension. Five composite structures were manufactured and loaded up to 4817 N. The static load test was carried out by hanging the load to the lower part of a cylinder. The natural frequencies and mode shapes were measured during testing using a network of 48 piezoelectric sensors that measure the strains of composite shells. The primary modal estimates were calculated with ARTeMIS Modal 7 software using test data. The methods of modal passport, including modal enhancement, were used to improve the accuracy of the primary estimates and reduce the influence of random factors. To estimate the effect of a static load on the modal properties of a composite structure, a numerical calculation and a comparative analysis of experimental and numerical data was carried out. The results of the numerical study confirmed that natural frequency increases with increasing tensile load. The data obtained from experimental results were not fully consistent with the results of numerical analysis, but showed a consistent pattern, repeating for all samples.

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“…It indicates the third stage. Bearing components start to be visible in the spectrum of vibrations measured on the bearing house [6].…”

Section: Components With Bearing Frequencies In the Spectrum Of Vibramentioning

confidence: 99%

Aircraft gas turbine engine vibration diagnostics

Fabry

Češkovič

2017

MAD

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In the Czech and Slovak aviation are in service elderly aircrafts, usually produced in former Soviet Union. Their power units can be operated in more efficient way, in case of using additional diagnostic methods that allow evaluating their health. Vibration diagnostics is one of the methods indicating changes of rotational machine dynamics. Ground tests of aircraft gas turbine engines allow vibration recording and analysis. Results contribute to airworthiness evaluation and making corrections, if needed. Vibration sensors distribution, signal recording and processing are introduced in a paper. Recorded and re-calculated vibration parameters are used in role of health indicators.

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Adaptive Technology Application for Vibration-Based Diagnostics of Roller Bearings on Industrial Plants

Cited by 4 publications

References 0 publications

Health Monitoring of Serial Structures Applying Piezoelectric Film Sensors and Modal Passport

Health Monitoring of Serial Structures Applying Piezoelectric Film Sensors and Modal Passport

Static Loads Influence on Modal Properties of the Composite Cylindrical Shells with Integrated Sensor Network

Aircraft gas turbine engine vibration diagnostics

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