SUEK-Krasnoyarsk, Krasnoyarsk, Russia:

D. Yu. Kritsky, Head of Department

SUEK, Moscow, Russia:
A. V. Mutygullin, Chief Mechanic

Siberian Federal University, Krasnoyarsk, Russia:
A. O. Shigin, Associate Professor, Doctor of Engineering Sciences

INTERUNIS-IT, Moscow, Russia:
V. V. Bardakov, Senior Researcher, Bardakovvv@interunis-it.ru

The article describes the research into the feasibility of monitoring operation of load-bearing metal structures of dragline excavators (in terms of walking dragline excavator ESH-20/90) based on the acoustic emission method. Efficiency of equipping high-performance excavators with monitoring system for early detection of eventual failure points in metal structures and for prevention of accidents by that is substantiated. It is proposed to carry out monitoring using the nondestructive testing method of acoustic emission, well-reputed in other branches of industry and having a high potential in the dynamic equipment control. During the research, the on-stream diagnosis of ESH-20/90 dragline excavator was carried out using the method of acoustic emission. From the research data obtained in the active excavator, the main sources of acoustic noise affecting the monitoring accuracy were identified. The frequency band for the recording of acoustic emission at the optimal signal/noise ratio was selected. The most defect-prone elements of load-bearing metal structures of the excavator were identified. The failure location capability was proved for the elements operated in the conditions of increased noise and high dynamic loading.

1. Available at: http://docs.cntd.ru/document/9046058 (accessed: 15.09.2017).
2. Matvienko Yu. G. Trends of non-linear destruction mechanics in mechanical engineering problems. Moscow – Izhevsk : Institut kompyuternykh issledovaniy, 2015. 56 p.
3. Matvienko Yu. G. Models and criteria of destruction mechanics. Moscow : Fizmatlit, 2006. 328 p.
4. Makhutov N. A., Fomin A. V., Ivanov V. I., Permyakov V. N., Vasilev I. E. Integrated diagnostics of limit states and early warning of emergency conditions of structures. Problemy mashinostroeniya i nadezhnosti mashin. 2013. No.2. pp. 25–31.
5. Dorosheev Yu. S., Kirichuk A. S. Problems of improvement of technological reliability of mining equipment. Gornyy informatsionno-analiticheskiy byulleten. 2010. Special issue No.4. Far East-1. pp. 176–182.
6. Gerike B. L., Abramov I. L., Gerike P. B. Innovation ways of provision of working capacity of mining machinery on the basis of monitoring of their technical state. Gornyy informatsionnoanaliticheskiy byulleten. 2008. Special issue No.7. Kuzbass. pp. 228–240.
7. Proust A. In service acoustic emission monitoring of harbor cranes in order to program maintenance operations and insure safety management. 32nd European Conference on Acoustic Emission Testing. Prague : Czech Society for NDT, 2016. pp. 10.
8. Tamutus T. Structural Health Monitoring Case Studies from In-Service Structures. Proceedings of the 5th International CANDU In-Service Inspection Workshop in conjunction with the NDT in Canada 2014 Conference. Toronto, 2014. 88 p. Available at: http://www.ndt.net/events/NDTCanada2014/app/content/Slides/40_Tamutus.pdf (accessed: 12.09.2017).
9. Bardakov V. V., Barat V. A., Terentev D. A., Chernov D. V., Osipov K. O. Features of the AE method application in monitoring of bridge constructions. Kontrol. Diagnostika. 2016. No.1. pp. 32–39.
10. GOST R ISO 12716-2009. Non-destructive testing. Acoustic emission inspection. Vocabulary. Introduced: 01.01.2011. Moscow : Standartinform, 2011. 12 p.
11. Kharebov V. G., Efremov M. I. Integrated systems of diagnostic monitoring of civilian and industrial objects. Nauka i bezopasnost. 2011. Special issue. Experience of design and exploitation of object systems of monitoring. Scientific and technical provision: state and prospects of development. pp. 144–148.
12. Borodin Yu. P., Chernykh M. V., Zhuravlev A. E. Integrated system of diagnostic monitoring LLC “INTERYuNIS”. Territoriya NDT. 2014. No.1. pp. 59–61.
13. Elizarov S., Barat V., Bardakov V., Chernov D., Terentyev D. Features of the AE testing of equipment on operating mode. 32^nd European Conference on Acoustic Emission Testing. Prague : Czech Society for NDT, 2016. pp. 115–124.
14. Elizarov S. V., Barat V. A., Bardakov V. V., Chernov D. V., Terentev D. A. AE-testing of support rollers of the rotary kilns. Kontrol. Diagnostika. 2017. No. 7. pp. 4–11.
15. Sokolov I. V., Matynin V. M., Barat V. A., Chernov D. V., Marchenkov A. Yu. Advanced Filtering Method Application for Sensitivity Enhancement during AE Testing of Operating Structures. Indian Journal of Science and Technology. 2016. Vol. 9, No. 42. pp. 1–7.