THE COMPACS SYSTEM®
REAL-TIME VIBRATION DIAGNOSTICS
OF MACHINERY WITH PROBABILITY CLOSE TO 1
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In 2001 the quality management system of DYNAMICS SPC was put through facultative certification. In 2018 it was recertified for compliance with standards ISO 9001:2015. Its results confirmed a high level of goods and services quality management.
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Home Publications Articles

Formation of diagnostic feature vector based on characteristic function of vibroacoustic signal

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Improvement of fault diagnosis reliability and depth is based on the application of fault criteria system, which is formed by combining the various parameters of diagnostic signals.

Therefore, the extension of the scope of signal diagnostic parameters and fault symptoms is important for diagnosis. The paper discusses the possibility of applying probabilistic characteristics both numerical and functional to estimate the parameters of vibration processes that characterize the defects and faults of the various mechanisms. Studies of vibration parameters when changing the condition of rolling bearings within various units and mechanisms showed that the probability density of the instantane-ous values oftbe vibroacoustic signal, and in particular, the acceleration also changes its parameters wben the bearing condition changing. Similar results were obtained when analyzing the probabilistic characteristics of the instantaneous values of vibroacoustic signals received from different assamblies of reciprocating compressors. We found that the change in the condition of such reciprocating compressor parts as discharge and suction valve, details of piston-cylinder units, slide-crank and cranking mechanisms, the crank-shaft bearings, the probability curves of the instantaneous vallies of the vibration signal significantly change. The latter fact is clearly visible when analyzing the parameters of the approximated distribution functions and probability density. For the first time in vibroacoustic diagnostics it was proposed to use such probabilistic characteristic of random processes as a characteristic function to analyze the properties of distribution function curve and probability curve.

The studies have shown that the area under tbe curve of the modulus of the characteristic function of the instantaneous value of vibroacoustic signals of different components and mechanisms may be used as a diagnostic parameter. Formation of the diagnostic features vector based on the parameter has allowed to propose a new diagnostic feature of fault invariant to machine design and the limit values ot vibroacollstic signal. Based on revealed regularity there have been developed a method and techniques of vibroacoustic diagnosis of various units of machines and mechanisms, as well as the vibroacollstic signal processing algorithm. Application of the deveIoped diagnosis method and diagnostic characteristics based on the characteristic function of vibroacoustic signal alows to increase the depth and the reliability of diagnosis whiIe simplifying diagnosis algorithms.

 

V. N. Kostyukov, А. Р. Nаumenkо, S. N. Boychenko (DYNAMICS Scientific & Ргоduсtion Center, Ltd., Omsk, Russia); 1. S. Kudr'yavtseva (Omsk State Тесhniсаl University, Omsk, Russia) Formation of diagnostic feature vector based on characteristic function of vibroacoustic signal // Нефтепереработка и нефтехимия. - 2016. - № 8. - 51-56

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Tags: vibroacoustic signal vibration processes statistical characteristics characteristic function diagnostic parameter Date: 26.03.2019
Views: 926
 

Innovative solution for pump units development and manufacturing

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The article describes an experience of implementing a test bench with a control system for pump diagnostics COMPACS-RPG at a pump unit acceptance test shop of OAO Volgogradneftemash in 2011.

Using the data stored in the automated control systems COMPACS for safe resource-saving operation and maintenance allowed to build a system for automatic diagnostics and control over the pump unit testing and running at their standard and limiting operational conditions.

 

V.N.Kostyukov, A.V. Kostyukov, S.N. Boychenko, A.V. Lazarev, А.А. Pavlov, A.G. Shestov Innovative solution for pump units development and manufacturing // Neftepererabotka&Neftechimiya. - 2016. - № 8. - 51-56

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Tags: condition pump control test bench Date: 19.03.2019
Views: 958
 

The Results of Resource-saving Machinery Operation SIBUR’s Tobolsk facilities

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The significance of resource-machinery operation based on stationary monitoring system, automatic diagnostics and its usage results are under consideration as illustrated by COMPACS systems of SIBUR units.

 

A.V. Kostyukov, E.V. Tarasov, D.V. Kazarin, S.L. Putintcev (DYNAMICS SPC), V.A. Kazakov (SIBUR Tobolsk) The Results of Resource-saving Machinery Operation SIBUR’s Tobolsk facilities // Compressors&Pneumatics. - 2016 - №5. - p.39-42

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Tags: diagnostics technical condition monitoring machinery save pump units Date: 12.03.2019
Views: 950
 

Experience in application of The COMPACS-RPE bench system with an integrated partial discharges sub-system in repair production of OOO MRP Gazpromneft Omsk Refinery

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The article dwells upon the importance of timely control of asynchronous motor condition and the need to develop new methods of condition diagnostic of their main assemblies. Currently available test benches for electric motors usually control vibration, temperature, rpm and current consumption of an asynchronous electric motor(AEM). That ensures high accuracy of AEM mechanic assemblies’ condition assessment, but condition of AEM insulation in that case can be observed only indirectly.

A perspective new method of AEM stator winding insulation defect diagnostics is a partial discharges control method. A partial discharge is an electric discharge paralleling a part of insulation between different-potential electrodes. Partial discharges (PD) occur in insulation defects, inclusions, uneven parts, gaps between the insulation layers. Such spots with dielectric properties different from the main insulation’s properties cause redistribution of electric field which leads to occurrence of insulation parts with high strength of electric field. Multiple PD during machinery operation may have a negative influence on the insulation state and (if the PD are intensive enough) cause a defect growth , sometimes, to a dielectric breakdown, which may result in machinery breakage or accident.

 

A.V. Kostyukov, S.N. Boychenko, A.V. Schchelkanov, Е.А. Burda (ООО «NPC DYNAMIKA»), S.А. Averyanov, V.I. Maiorov (OOO MRP Gazpromneft Omsk Refinery). Experience in application of The COMPACS-RPE bench system with an integrated partial discharges sub-system in repair production of OOO MRP Gazpromneft Omsk Refinery // Chimicheskaya Technika. -2016. - No 7. - p. 4-6, Cover page

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Tags: diagnostics monitoring safety machinery condition pump process units Date: 05.03.2019
Views: 985
 

Development of Logical-linguistic Model of Pneumatic Electric Train System for Diagnostic Purposes

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The paper presents the logical-linguistic model that provides sufficient depth and completeness of diagnostics in compliance with all the checks and standards required by the instruction. Diagnostic signs were determined considering each required check to build the model. The results of the diagnostic model development have been applied and successfully tested on various electric train sets.

 

A.V. Schelkanov Development of Logical-linguistic Model of Pneumatic Electric Train System for Diagnostic Purposes // Izvestia Transsiba. - 2016. - No 5. - p.48-54

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Tags: diagnostics electric train pneumatic effect logical-linguistic model Date: 26.02.2019
Views: 1005
 

Uniformity Evaluation of Vibration Parameters of Similar Electric Train Nodes

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A hypothesis on homogeneity of groups of the similar electric train mechanical nodes was put forward to improve the reliability of the recognition of the technical condition of the mechanical parts of the rail rolling stock and the calculation of the critical parameter values. The parameters of the node vibration generated when the train moves were collected; a new technique was developed and the statistical analysis of the measured vibration parameters of the same-type nodes was conducted within the hypothesis testing experiment.

 

V. N. Kostyukov, A. V. Kostyukov, D. V. Kazarin, V. V. Basakin Uniformity Evaluation of Vibration Parameters of Similar Electric Train Nodes // Izvestia Transsiba. - 2016. - No 5. - p.30-35

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Tags: vibration rolling stock electric train condition Date: 19.02.2019
Views: 1074
 

NPC DYNAMICA – Russian Innovations

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The paper describes the formation of SPC DYNAMICS. The company’s history dates back to 1989. In that year Vladimir Kostyukov, the founder of the company, was invited to Omsknefteorgsintez to address the problem of trouble-free equipment operation through the creation of permanently-installed systems for vibration health monitoring of pumps and compressors. The successful implementation of the first permanently-installed computer monitoring systems was the beginning of SPC DYNAMICS.

 

A.V. Kostyukov NPC DYNAMICA – Russian Innovations // Chimicheskaya Technika. -2016. - No 5. - p. 4-6, Cover page

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Tags: safety SPC Dynamics Omsknefteorgsintez vibration diagnostic system Date: 12.02.2019
Views: 1002
 

Risk Monitoring: Pavlodar Oil Chemistry Refinery deploys the automatic machinery diagnostic system

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Increasing scale and complexity of hazardous production facilities in petroleum refineries make it paramount to enhance the industrial safety and mitigate machinery related risks. That is why the strategy of operational efficiency improvement based on risk management has taken a special place among the strategic priorities of KazMunayGas - downstream operations. Even today the company is implementing a number of large-scale risk management projects. The projects involve the introduction of machinery health monitoring systems in the subsidiaries, since early failure detection, monitoring of failure development and timely corrective actions constitute a major safety task. The systems monitor equipment while in operation and maximize the design lifetime of the equipment. The paper presents the experience of the Pavlodar Oil Chemistry Refinery on transition to the Safe Resource-saving Operation and Maintenance of Machinery based on the real-time health monitoring systems.             

 

Danbay Sh.A., Tlepbergenov M.Zh., Kostyukov A.V., Sinitsyin A.A. Risk Monitoring: Pavlodar Oil Chemistry Refinery deploys the automatic machinery diagnostic system // Oil&Gas Journal Russia. - 2016. - No 5. - p.54-55

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Tags: monitoring risk Pavlodarsky Refinery diagnostic system Date: 05.02.2019
Views: 1037
 

Wireless Network for Machinery Condition Monitoring

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Iп this рарег the hardware, dеsign, software and main регfогmanсеs of the mасhinery соnditiоп wireless mоnitогing system аге presented. The system works in по license required wave band.

 

V.N. Kostyukov, A.P. Naumenko Wireless Network for Machinery Condition Monitoring // Sensors & Systems - 2016 - #2. - p.36-41

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Tags: remote vibration sellsors autonomous digital radio sensor Gaussiall modulatioll trallsmitters microcontroller Date: 29.01.2019
Views: 1050
 

Human Factor Influence on the Assessment of the Monitoring System Failure Probability

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The paper presents a possible approach to the assessment of the probability of omission the equipment failure, which is controlled by the monitoring system, considering the influence of a human factor as a managing part of a monitoring system on monitoring results. The aim of this paper is a selection and assessment of those components of the human factors that affect the likelihood of failure in modern monitoring systems.

 

V.N. Kostyukov, A.P. Naumenko Human Factor Influence on the Assessment of the Monitoring System Failure Probability // NDT World. - vol.19. - #1, pp. 72-77

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Tags: diagnostics technical condition monitoring risks human factor Date: 22.01.2019
Views: 992
 
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