Zobrazeno 1 - 10
of 52
pro vyhledávání: '"P. V. Avramov"'
Publikováno v:
Journal of Mechanical Engineering, Vol 27, Iss 3, Pp 25-33 (2024)
The use of thin-walled constructions with honeycomb structure manufactured using additive technologies has several advantages compared to the constructions manufactured using traditional technologies. First of all, this is explained by the fact that
Externí odkaz:
https://doaj.org/article/f0a234dcef234727ba6b055cfc4591e0
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 3, Pp 1-18 (2024)
Abstract We revisit the classical thermodynamic stability of the standard black hole solutions by implementing the intrinsic necessary and sufficient conditions for stable global and local thermodynamic equilibrium. The criteria for such equilibria a
Externí odkaz:
https://doaj.org/article/8fc9f9fb57fd4c1e9ae1ccf7c999bbca
Autor:
Kostiantyn V. Avramov, Volodymyr M. Sirenko, Volodymyr V. Zaverukha, Sergiy I. Plankovskyy, Yevgen V. Tsegelnyk, Volodymyr V. Kombarov
Publikováno v:
Journal of Mechanical Engineering, Vol 26, Iss 4, Pp 17-22 (2023)
A transport and launch container for launching rockets made of fiberglass is considered. The main goal of the paper is to calculate the stress state of this container and check the strength conditions. The calculation of the pressures of the combusti
Externí odkaz:
https://doaj.org/article/76761f9a3ca24baeb7ed7b551a047810
Publikováno v:
Journal of Mechanical Engineering, Vol 26, Iss 2, Pp 6-15 (2023)
The authors derived a mathematical model of geometrically nonlinear vibrations of three-layer shells, which describes the vibrations of the structure with amplitudes comparable to its thickness. The high-order shear theory is used in the derivation o
Externí odkaz:
https://doaj.org/article/5e10771ea18d4535adc20f6a7958a221
Akademický článek
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Autor:
Borys V. Uspenskyi, Ihor I. Derevianko, Kostiantyn V. Avramov, Oleh F. Polishchuk, Oleksandr F. Salenko
Publikováno v:
Journal of Mechanical Engineering, Vol 25, Iss 3, Pp 16-28 (2022)
The multi-cycle fatigue of three-layer plates with honeycomb structure, which was manufactured using additive FDM technologies from polylactide, is considered. Carbon fiber based on the SIGRAPREG C U200-0/NF-E310/30% pre-preg is chosen as a material
Externí odkaz:
https://doaj.org/article/372173bc5cc448879531a5b3227f9453
Publikováno v:
Journal of Mechanical Engineering, Vol 25, Iss 1, Pp 6-14 (2022)
A mathematical model of the dynamic instability of a three-layer conical shells with honeycomb structure made using additive technologies has been obtained. Dynamic instability is recognized as the interaction of the shell with a supersonic gas flow.
Externí odkaz:
https://doaj.org/article/4bbfcf3181f848728bf94f174b0298c1
Publikováno v:
Micromachines, Vol 14, Iss 10, p 1889 (2023)
Advanced two-dimensional spin-polarized heterostructures based on twisted (TBG) and nanoporous (NPBG) bilayer graphenes doped with Eu ions were theoretically proposed and studied using Periodic Boundary Conditions Density Functional theory electronic
Externí odkaz:
https://doaj.org/article/8ec5d726ea704a41a5946a4b3b5b93e6
Publikováno v:
Shock and Vibration, Vol 2023 (2023)
Externí odkaz:
https://doaj.org/article/08934cfd4c964aa19e46a4741f1e6837
Publikováno v:
Journal of Mechanical Engineering, Vol 24, Iss 4, Pp 49-60 (2021)
Presented is a model of the dynamic deformation of a three-layer cylindrical shell with a honeycomb core, manufactured by fused deposition modeling (FDM), and skins reinforced with oriented carbon nano-tubes (CNT). A ULTEM 9085 thermoplastic-based ho
Externí odkaz:
https://doaj.org/article/99ae465aa6b94de99b0c9588a8a73fe3