Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Roman Protasov"'
Publikováno v:
Journal of Mechanical Engineering, Vol 71, Iss 2, Pp 291-298 (2021)
The concept “structural strength of tool materials” got further development. The refusals of cemented carbide cutting plates, when heavy machining were analyzed. It was shown that 70…80% of refusals are the microchipping of cutting edges, tool
Externí odkaz:
https://doaj.org/article/761bc8cc8b2749718c443ee787bd42a7
Publikováno v:
Journal of Mechanical Engineering, Vol 71, Iss 2, Pp 213-220 (2021)
The structure of the MAK M43 diesel high pressure fuel pump driving is analyzed. It is shown that presence of redundant constraints in its mechanism is the reason of roller bearings failure. It is proposed redundant constraints elimination by adding
Externí odkaz:
https://doaj.org/article/a85508e1540448e5b37243e11d9795de
Publikováno v:
Lubricants, Vol 10, Iss 12, p 342 (2022)
Wear of TiAlCN coatings deposited on HCR (High Contact Ratio) gears was studied by the Niemann test during which the tested gears were loaded up to the 12th load stage. The resistance against scuffing was evaluated based on the criteria of allowable
Externí odkaz:
https://doaj.org/article/f111c01b39e84ddbbad3a718aa669e51
Autor:
Roman PROTASOV, Sergey ANDRIENKO, Alexander USTINENKO, Alexey BONDARENKO, Nicholay MATUSHENKO
Publikováno v:
Fiabilitate şi Durabilitate, Vol 1, Iss 19, Pp 287-293 (2017)
Evolute gearing is realized in a family of teeth profiles for gears and chain drives with convex-concave contact. The main criterion of loading capacity for gear is contact strength, for chain drive – tooth wear. Both indicators depend on the lev
Externí odkaz:
https://doaj.org/article/331981000e04437998fb6f44c03ab459
Publikováno v:
Lubricants, Vol 9, Iss 5, p 54 (2021)
Wear of nonstandard involute gears with two types of coatings, AlCrN and CrAlSiN, was studied. The coatings were applied by cathodic arc deposition. The gears were tested using a Niemann tester at a graduated load up to the 12th load stage and were c
Externí odkaz:
https://doaj.org/article/eba1103030754f91a4b18aa6b21f62e3
Publikováno v:
Lubricants, Vol 8, Iss 5, p 56 (2020)
The submitted contribution deals with the wear of thin coatings applied to convex–concave gearings for gear made from C45E steel. The influence of the tribological characteristics (friction coefficient, wear, adhesion and hardness) of the TiN, TiCN
Externí odkaz:
https://doaj.org/article/2a657c82f6214c2ea8c9811421a6d888
Publikováno v:
Journal of Mechanical Engineering (2450-5471); Nov2024, Vol. 74 Issue 2, p49-56, 8p
Autor:
Yuriy Kuleshkov, Mikhailo Chernovol, Sergii Mahopets, Oleh Bevz, Borys Vorontsov, Iryna Kyrychenko, Roman Protasov
Publikováno v:
Strojnícky časopis - Journal of Mechanical Engineering. 73:125-136
The article proposes a new technique for estimating the instantaneous supply in gear hydraulic machines. It takes into account the peculiarity of the movement of the radius connecting the centers of rotation of the gears with the point of engagement.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf030bbcca341ad768925a691692c9dd
https://doi.org/10.2478/scjme-2023-0010
https://doi.org/10.2478/scjme-2023-0010
Publikováno v:
Strojnícky časopis - Journal of Mechanical Engineering. 73:137-146
An analytical method for calculation of local stresses in double-sided butt welded joints at misalignment of welds’ axes is developed. The method is applicable for welded thin-gauge plates with different geometry of welds on the face and root sides
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c819beb5cd185641b05c1a885460a8d8
https://doi.org/10.2478/scjme-2023-0011
https://doi.org/10.2478/scjme-2023-0011
Autor:
Oleksiy Bondarenko, Oleksandr Ustynenko, Roman Protasov, Illia Klochkov, Borys Vorontsov Borys, Mykola Matyushenko, Pavlo Kalinin
Publikováno v:
Bulletin of the National Technical University «KhPI» Series: Engineering and CAD. :6-16
Modern trends in the optimal and rational design of technical objects cross a large number of directions of their implementation. One of the interesting and promising directions is genetic and evolutionary algorithms (GА and EA). Authors promote the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afb969f4e9f75020c441fa00f4b53a27
https://doi.org/10.20998/2079-0775.2022.2.01
https://doi.org/10.20998/2079-0775.2022.2.01