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Full text
Total number
Full text
Number of local repositories
Full text
0226U000300,
(0123U100999)
,
Development of the magnetocyclic method and means for detecting metal defects of pipes under the covers
Розроблення магнетоциклічного методу та засобів виявлення дефектів металу труби під покривами.
Dzhala Roman М., Доктор технічних наук
07-01-2026
Physico-Mechanical Institute named after GV Karpenko of the National Academy of Sciences of Ukraine
The development of mathematical models for research on the relationship between electromagnetic fields and defects in a ferromagnetic cylinder and the creation of methods and devices for detecting corrosion and mechanical damage to metal under the covers.
The object of research is electrophysical methods and means of diagnostic examinations and non-destructive testing of corrosion of metal structures. Purpose of the work: development of mathematical models for studying the relationship between electromagnetic fields and defects in a ferromagnetic cylinder and creation of methods and devices for detecting corrosion and mechanical damage to metal under coatings. Research methods – mathematical modeling, analysis and calculations, algorithms and programs, selection and processing of measurement information, methods and devices for non-destructive testing and diagnostics of metal structures. A method for controlling the corrosion protection of underground pipelines using non-contact current measurements has been proposed. A mathematical model of the magnetic field of a pipe with metal defects has been developed; calculations have investigated the influence of metal damage parameters on the nature of the field distribution; the possibility of detecting and identifying metal damage in pipelines has been shown. A magnetocyclic method and device have been developed for detecting and identifying corrosion and mechanical damage to metal under covers and pipeline branches. The scheme for forming and processing the signal of the diffuse light reflection sensor on a microcontroller has been modernized; informative signal features – signatures for determining the size of microdefects have been established, which can be used as a method for rapid classification of metal damage characteristics. The results of the research can be used in organizations of pipeline transportation of gas and oil, chemical industry products, water and gas supply networks, non-destructive testing and technical diagnostics.
Bohdan Y. Verbenetz
Vasyl` R. Dzhala
Marjan I. Melnyk
Roman M. Dzhala
2026-01-07
Updated: 2026-01-09
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