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Innovative Technologies in Mechanical EngineeringStudy of the advantages and disadvantages of fluid behavior modeling in the 3D MAX software package

Study of the advantages and disadvantages of fluid behavior modeling in the 3D MAX software package

Study of the advantages and disadvantages of fluid behavior modeling in the 3D MAX software package Oleh Kolesnichenko ORCID: https://orcid.org/0000-0002-6115-1481 Oles Honchar Dnipro National University Nowadays, when computer technologies are used in all fields of science and technology, it is almost impossible to imagine the activi-ties of various institutions, including scientific and educational ones, without modeling various objects and processes. The peculiarity of the design and construction of flying apparatus requires the use of modern methods of information processing, creation …

Engines, Energy and ThermotechnicsUse of thermal energy for blowing fuel tanks of rocket engines

Use of thermal energy for blowing fuel tanks of rocket engines

Use of thermal energy for blowing fuel tanks of rocket engines Yurii Mitikov ORCID: https://orcid.org/0000-0002-4787-603X Oles Honchar Dnipro National University Maksym Sedchenko ORCID: https://orcid.org/0009-0008-0027-0939 Oles Honchar Dnipro National University Yevhen Krupkin ORCID: https://orcid.org/0009-0002-7344-1061 Dniprovsk State Technical University The use of thermal energy for pressurizing fuel tanks in rocket propulsion systems is a crucial topic in the field of space technology. It encompasses various aspects of thermodynamics, materials engineering, and fluid and gas mechanics. This study examines the fundamental principles and …

Structural and Functional MaterialsStructure and phase composition of films Fe–Si–B-Cu–Nb and Fe–Si–B–Ni–Mo

Structure and phase composition of films Fe–Si–B-Cu–Nb and Fe–Si–B–Ni–Mo

Structure and phase composition of films Fe–Si–B-Cu–Nb and Fe–Si–B–Ni–Mo Serhii Riabtsev ORCID: https://orcid.org/0000-0002-2889-5278 Oles Honchar Dnipro National University Oleksandr Kushnerov ORCID: https://orcid.org/0000-0002-9683-2041 Oles Honchar Dnipro National University Valerii Bashev ORCID: https://orcid.org/0000-0002-3177-0935 Dniprovsk State Technical University The influence of modernized three-electrode ion-plasma sputtering of a complex target based on the Fe-Si-B system with Cu, Nb or Ni, Mo additives on the structure and properties of sputtered films has been studied. The formation of amorphous and nanocrystalline phases in the films was …

Structural and Functional MaterialsThe structure and mechanical properties of a multicomponent alloy of the Al-Co-Cr-Cu-Fe-Ni system obtained by quenching from the melt

The structure and mechanical properties of a multicomponent alloy of the Al-Co-Cr-Cu-Fe-Ni system obtained by quenching from the melt

The structure and mechanical properties of a multicomponent alloy of the Al-Co-Cr-Cu-Fe-Ni system obtained by quenching from the melt Oleksandr Kushnerov ORCID: https://orcid.org/0000-0002-9683-2041 Oles Honchar Dnipro National University Valerii Bashev ORCID: https://orcid.org/0000-0002-3177-0935 Dniprovsk State Technical University Serhii Riabtsev ORCID: https://orcid.org/0000-0002-2889-5278 Oles Honchar Dnipro National University This study investigates the influence of cooling rate on the microstructure, phase formation, and mechanical properties of the high-entropy alloy (HEA) Al4CoCrCuFeNi. X-ray diffraction analysis revealed a fascinating interplay between cooling rate and phase composition. …

Ecology, industrial and environmental safetyDetermination of model functional dependencies of eco-safety optimization and management for tailings dumps slope structures

Determination of model functional dependencies of eco-safety optimization and management for tailings dumps slope structures

Determination of model functional dependencies of eco-safety optimization and management for tailings dumps slope structures Andrii Riabko ORCID: https://orcid.org/0000-0001-6305-3853 M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine The problems of eco-safety of alluvial massifs of tailings dumps of various industries intersects with the tasks of rational nature management, based on geomechanical studies, aimed at improving the structural parameters of hydraulic impoundments and dams. A necessary conditions for the development of environmentally safe technological solutions …

Innovative Technologies in Mechanical EngineeringA cascading method of installing several radial thrust bearings

A cascading method of installing several radial thrust bearings

A cascading method of installing several radial thrust bearings Volodymyr Dudnikov ORCID: https://orcid.org/0000-0002-7115-7086 Oles Honchar Dnipro National University The structure of modern technical systems in mechanical engineering includes many bearing units with rolling bearings. The practice of designing and operating the supports of various mechanisms and machines shows that under the conditions of significant axial loads, double or serially arranged radial thrust ball bearings with the contact pressure lines of the rolling elements directed into them in one direction are …