The article considers the issues of using different physical processes parameters in systems for real-time condition monitoring of reciprocating compressors.
The locations for sensors of absolute and relative vibration are defined.
Trends of parameters of absolute and relative vibration at emergence of malfunctions and defects are given.
Examples of diagnosing of reciprocating compressors in parameters of relative and absolute vibration are reviewed.
It is shown that real-time monitoring of the absolute vibration parameters and the relative position of rod provides observability of the piston compressors’ condition and, consequently, their safe operation.
Kostyukov V.N., Naumenko A.P. Real-time monitoring on vibration- based diagnostics of reciprocating compressors // Proceedings of The First World Congress on Condition Monitoring 2017. -152
Condition diagnostics and monitoring of machinery by vibration-acoustic diagnostics methods is widely used nowadays in production industries, in order to quit the expensive preventive maintenance and implement an effective modern system of condition-based maintenance. The papers [1,2] show that the effectiveness of a condition monitoring system implementation is mainly determined by the value of the error of the result issued by the expert system. One of the components of the diagnostic errors is low resolution power of spectral analyzer which is currently the main instrument for vibration-acoustic signal analysis.
Kostyukov Al.V., Boychenko S.N. Improving reliability of vibration spectrum identification without increasing sampling rate using spectral interpolation algorithm // Proceedings of The First World Congress on Condition Monitoring 2017. -152
The article reviews and suggests certain results of an experimental analysis of low-frequency vibrations on a bench for rotor installed on plain bearings and having a residual deflection.
Kumenko A.I., Kostyukov V.N., Kuzminykh N.Yu., Timin A.V. Auto-oscillations and subharmonic vibrations as illustrated by an experimental rotor // Proceedings of the 7th international scientific and technical conference (Omsk, April 24-28, 2017). - Omsk: Publishing House of OmSTU, 2017. - p.186-187
Bearing units of rotary machines are critical points on the technical condition of which depend on reliability and steadiness of machinery operation, as well as its safety.
For an objective assessment of the condition of bearing units, one should consider the nature of dependency between the rotary vibration parameters and shaft rotation speed, thus, creating new diagnostic signs combination of which ensures higher diagnostic reliability.
The paper is aimed at determining the dependency of diagnostic signs from shaft rotation speed to solve practical engineering tasks.
Kostyukov V.N., Kostyukov Al.V., Zaitsev A.A., Teterin A.O. Studying dependency of vibration parameters occurring in bearing units of rotary machines on shaft rotation speed // Proceedings of the 7th international scientific and technical conference (Omsk, April 24-28, 2017). - Omsk: Publishing House of OmSTU, 2017. - p.185-186
Currently the only method for determining machinery condition is vibration diagnostics, when the condition is determined by analyzing a vibration signal in its housing. As a result of signal analysis, a special expert system forms a set of diagnostic signs based on which a diagnostic expert message is formed using logical rules.
To form a vector of diagnostic signs, signs invariant to machinery construction are used: RMS signals of vibration acceleration(Ae), vibration velocity (Ve), and vibration displacement (Se),as well as a set of spectral signs obtained from an analysis of spectral components of the vibration signal.
Kostyukov Al.V., Boychenko S.N. Studying orthogonality of system of fractal and integrated diagnostic signs of vibration signal // Proceedings of the 7th international scientific and technical conference (Omsk, April 24-28, 2017). - Omsk: Publishing House of OmSTU, 2017. - p.183-184
The research is aimed at increasing diagnostic reliability for complex machines by creating an adaptive method of health evaluation of parts of their same-type units operating in uniform environmental conditions.
Kostyukov V.N., Kostyukov Al.V., Kazarin D.V., Basakin V.V. Method for diagnosing same-type units by vibration parameters // Technique and technology of the petrochemical and oil and gas production: Proceedings of the 7th international scientific and technical conference (Omsk, April 24-28, 2017). - Omsk: Publishing House of OmSTU, 2017. - p.182-183
Ensuring reliability of performance and steadiness of technical process crucial for most of production and transport enterprises requires systematic considerable operational expenses for maintenance and repair of machinery, while its main goal – reliable and steady operation – is not clear, number of machinery defects and failures occurring in operation remains the same.
Kostyukov V.N., Kostyukov Al.V., Kazarin D.V. Diagnostics and Monitoring as a basis for production and transport facilities operation control // Technique and technology of the petrochemical and oil and gas production: Proceedings of the 7th international scientific and technical conference (Omsk, April 24-28, 2017). - Omsk: Publishing House of OmSTU, 2017. - p.181-182
Currently, automated monitoring and vibration diagnostic systems became widely used to control dynamics equipment’s condition, since they do succeed in monitoring of mechanic parts process units and their drives. But such systems usually do not monitor the condition of electrical component of the process unit’s drives, such as windings, drive insulation, cable lines, and splitters.
Kostyukov Al.V., Shchelkanov A.V., Burda E.A. Comprehensive automated diagnostics of rotating machinery // Technique and technology of the petrochemical and oil and gas production: Proceedings of the 7th international scientific and technical conference (Omsk, April 24-28, 2017). - Omsk: Publishing House of OmSTU, 2017. - p.180-181
The research is aimed at solving an urgent task of evaluating impact of personnel mistakes on performance of real-time diagnostic and monitoring systems for hazardous production facilities and determining the best ways of evaluating the monitoring system’s class taking into consideration the human factor.
Kostyukov V.N., Naumenko A.P. On dependency between personnel qualification and failures skipped by monitoring system // Technique and technology of the petrochemical and oil and gas production: Proceedings of the 7th international scientific and technical conference (Omsk, April 24-28, 2017). - Omsk: Publishing House of OmSTU, 2017. - p.172-173
When operating machinery on continuous technological manufactures one of the key issues is the timely detection and trouble-free decommissioning of units with a high degree of degradation of parts and components to their destruction and jamming. At the refining industries wide application centrifugal pumps equipped with rolling bearings. Rolling bearings are a key node, providing supporting and working functions of the dynamic equipment. At the same time, rolling bearings in the construction of a centrifugal pump unit is the most vulnerable host. Topical is the timely detection of incipient defects and ensuring monitoring of degradation of units and parts of the centrifugal pump unit during operation. The vibration of a centrifugal pump unit reflects the degradation processes occurring during the operation of the equipment. Thus the tracking vibration we can carry out an assessment of the technical condition of the equipment. The destruction of a centrifugal pump unit does not occur instantaneously and occupies defined time intervals. These time intervals can take corrective action and prevent the development of an emergency situation. On some pumping units degradation process is the stage and accordingly, there are jumplike character vibration changes. The analysis stepwise process of degradation and algorithms have been developed to ensure a warning of staff in advance of a failure of the unit. Applying the approach for the control of the degradation stage of technical condition monitoring and automatic diagnosis system has improved the operational safety of oil refineries.
Kostyukov V.N., Tarasov E.V. Diagnostics of technical condition of rolling bearings operation // Proceedings of International Scientific-Technical Conference "Dvigatel-2017" celebrating 110 years of Piston Motors Specialist Program in Bauman Moscow State Technical University / Moscow, - 2017. - p.19-20
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