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2020 №04 (06) DOI of Article
10.37434/tdnk2020.04.07
2020 №04 (08)

Technical Diagnostics and Non-Destructive Testing 2020 #04
Technical Diagnostics and Non-Destructive Testing #4, 2020, pp. 45-49

Portable means for diagnostics of products and elements of structures by the parameters of elastic waves of different nature

Ye.P. Pochapskyi, B.P. Klym, N.P. Melnyk, Ya.D. Tolopko, P.M. Dolyshnii, P.P. Velykyi
G.V. Karpenko Physico-Mechanical Institute of NASU. 5 Naukova str., 79060, Lviv, Ukraine. E-mail: pochapskyy@ipm.lviv.ua

The paper presents the results of development of portable means for diagnostics of products and structural elements by the parameters of elastic waves of different nature. Structures of multichannel acoustic-emission and magnetoacoustic diagnostic systems were developed. System realization in the form of stacked block structures was substantiated. Design of a mobile device for moving the put-on magnet of the magnetoacoustic system is proposed. System and information software for magnetoacoustic and multichannel acoustic-emission portable systems was developed. A procedure is proposed for evaluation of the stressed state of ferromagnetic structural elements by the parameters of the signal of magnetoelastic acoustic emission. Procedures for controlling the metrological characteristics of the developed systems were elaborated. Acoustic emission and magnetoacoustic inspection of pressure vessels and pipeline sections and equipment of oil and gas complex of Ukraine in Lviv and Ivano- Frankivsk regions was performed. 11 Ref., 6 Fig.
Keywords: nondestructive testing, acoustic emission, magnetoelastic acoustic emission, multichannel acoustic-emission system, magnetoacoustic system, software, signal processing algorithms, evaluation of stress-strain state of ferromagnetic structural elements, control of metrological characteristics

Received: 13.07.2020

References

1. Nazarchuk, Z.T., Skalskyi, V.R., Pochapskyi, Ye.P. (2014) Technologies of selection and processing of low-energy diagnostic signals. Kyiv, Naukova Dumka [in Ukrainian].
2. Skalskyi, V.R., Pochapskyi, Ye.P., Klym, B.P., Rudak, M.O. (2016) Application of the method of magnetoelastic acoustic emission for evaluation of technical condition of 19G steel after long-term operation in an oil pipeline. Fiz.-Khim. Mekhanika Materialiv, 3, 81-84 [in Ukrainian]. https://doi.org/10.1007/s11003-016-9968-3
3. Skalskyi, V.R., Pochapskyi, Ye.P., Klym, B.P., Rudak, M.O. (2016) Application of the method of magnetoelastic acoustic emission for control of stressed state of ferromagnetic structural elements. Tekhnologicheskie Sistemy, 2, 67-69 [in Ukrainian].
4. Skalskyi, V.R., Pochapskyi, Ye.P., Klym, B.P., Simakovych, O.G. (2014) Determination of the coordinates of acoustic emission sources in thin-walled objects of a cylindrical shape. Vidbir i Obrobka Informatsii, 41, 55-62 [in Ukrainian].
5. Skalskyi, V.R., Pochapskyi, Ye.P., Klym, B.P., Simakovych, O.G. (2015) Location of acoustic emission sources in thinwalled objects of a spherical shape. Fiz.-Khim. Mekhanika Materialiv, 1, 122-129 [in Ukrainian]. https://doi.org/10.1007/s11003-015-9820-1
6. Skalskyi, V.R., Pochapskyi, Ye.P., Klym, B.P., Koblan, I.M. (2016) Improvement of the effectiveness of excitation of signals of magnetoelastic acoustic emission. Vidbir i Obrobka Informatsii, 44 (120), 5-11 [in Ukrainian].
7. Skalskyi, V.R., Pochapskyi, Ye.P., Klym, B.P. et al. (2016) Development of the concept of building a system for diagnosing products and structural elements by the parameters of magnetoelastic acoustic emission. In: Proc. of 8th National Sci.-Techn. Conf. of Nondestructive Testing and Technical Diagnostics (Kyiv, 22-24 November 2016), 249-254 [in Ukrainian].
8. Pochapskyi, Ye.P., Melnyk, N.P., Koblan, I.M. (2018) Effect of excitation conditions on generation of magnetoelastic acoustic emission signals in ferromagnetic materials. Fiz.- Khim. Mekhanika Materialiv, 3, 142-147 [in Ukrainian] https://doi.org/10.1007/s11003-018-0204-1
9. Yavorskyi, I.M., Pochapskyi, Ye.P., Vorobel, R.A., Rusyn, B.P. (2018) Information technologies of nondestructive testing. Technical diagnostics of materials and structures: Refer. book in 8 Vol. Ed. by Z.T. Nazarchuk., Vol. 7, Lviv, Prostir-M [in Ukrainian].
10. Pochapskyi, Ye.P., Klym, B.P., Melnyk, N.P. et al. (2019) Assessment of the influence of mechanical properties of structural ferromagnetic materials and their welded joints on the change of parameters of magnetoelastic acoustic emission. Tekh. Diagnost. i Nerazrush. Kontrol, 2, 7-12 [in Ukrainian]. https://doi.org/10.15407/tdnk2019.02.01
11. Pochapskyy, Ye.P., Melnyk, N.P. (2019) Mathematical model and informative features of the signal of the magnetoelastic acoustic emission. Scientific J. of the Ternopil National Technical University, 4, 105-110.

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