Zobrazeno 1 - 10
of 20
pro vyhledávání: '"V. G. Kul'kov"'
Autor:
V. G. Kul’kov, V. N. Tyshkevich, V. N. Kuryanov, M. M. Sultanov, D. Sh. Norov, M. V. Narykova, A. G. Kadomtsev, N. D. Prasolov, P. N. Brunkov, A. I. Likhachev, R. V. Sokolov, A. A. Levin
Publikováno v:
Safety and Reliability of Power Industry. 14:189-195
The effect of wind on the wires of overhead transmission lines leads to their vibration, as well as oscillations of different amplitudes. At places where the wire is suspended, damage to the metal structure of the fatigue type occurs. This is an exce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0346bdd35afce59c835e12e99a03bb06
https://doi.org/10.24223/1999-5555-2021-14-4-189-195
https://doi.org/10.24223/1999-5555-2021-14-4-189-195
Autor:
V. G. Kul’kov
Publikováno v:
Конденсированные среды и межфазные границы. 24:475-482
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89e1da98058530c64d95c08526c415ba
https://doi.org/10.17308/kcmf.2022.24/10552
https://doi.org/10.17308/kcmf.2022.24/10552
Publikováno v:
Russian Electrical Engineering. 93:53-58
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b552ed9caaf930781cdb1c4013d5cddd
https://doi.org/10.3103/s1068371222010096
https://doi.org/10.3103/s1068371222010096
Autor:
V. G. Kul’kov
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 84:1043-1047
The energy of activation of background internal friction is found, based on the solution to the inhomogeneous diffusion equation of vacancies in an annular region of grain conjugation. The dependence of the internal friction logarithm on the inverse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::834c20966f9476ae9f13e8e6a2eb4ac8
https://doi.org/10.3103/s1062873820090221
https://doi.org/10.3103/s1062873820090221
Autor:
V. G. Kul’kov, A. A. Syshchikov
Publikováno v:
Russian Metallurgy (Metally). 2020:277-281
A two-dimensional inhomogeneous diffusion equation for vacancies is solved to find the vacancy-concentration and normal-stress distributions and the rate of mutual grain displacement in a grain boundary. The activation energy of internal friction is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::541ffb67ebdb3ecdc7a3bbc1c9f69c99
https://doi.org/10.1134/s0036029520040175
https://doi.org/10.1134/s0036029520040175
Publikováno v:
2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE).
Overhead power line wires are subject to various atmospheric effects. The most significant of them are wind and ice deposition. Such effects lead to irregular oscillations and vibrations of wires. The reliability of the lines is determined by the fat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2abff47d06300307c6af534cbedfeb68
https://doi.org/10.1109/reepe51337.2021.9388090
https://doi.org/10.1109/reepe51337.2021.9388090
Autor:
V. G. Kul’kov, A. A. Syshchikov
Publikováno v:
Technical Physics Letters. 45:82-84
A model of internal friction at a grain boundary containing equidistant parallel cylindrical pores is presented. Variable shear stress induces a mutual displacement of the interfacial regions matched at the segments between pores depending on their p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0299257e6b7731ccb041ebdaba58d815
https://doi.org/10.1134/s106378501902010x
https://doi.org/10.1134/s106378501902010x
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 1035:012038
The article is devoted to problems in the electric grid complex related to ageing of components of power lines, reduction of reliability and increase the number of failures. It shows the need of development of scientific and methodical bases of perfe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::322d869c977437dae5dcc66b3035672c
https://doi.org/10.1088/1757-899x/1035/1/012038
https://doi.org/10.1088/1757-899x/1035/1/012038
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 1035:012042
This article describes the types of ice and snow deposits on metal wires of overhead power lines. It has a harmful effect on the functional state of power lines. Under the influence of the force of resistance to air flows in the wind and the gravity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a922e513914f47c9fc43a5a5541dbf9
https://doi.org/10.1088/1757-899x/1035/1/012042
https://doi.org/10.1088/1757-899x/1035/1/012042
Publikováno v:
Journal of Physics: Conference Series. 1683:042043
This article explores two models of internal friction in porous materials and ultrafine-grain composite materials. The high-temperature background is described by two straight sections based on the dependence of the internal friction value on the rev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3c3604ab7c0a437c839396262b001d8
https://doi.org/10.1088/1742-6596/1683/4/042043
https://doi.org/10.1088/1742-6596/1683/4/042043