Innovative Technologies in Mechanical EngineeringInformation-Mathematical Representation of Steel Grades of Structural Elements in Applied Mechanics

Information-Mathematical Representation of Steel Grades of Structural Elements in Applied Mechanics

Information-Mathematical Representation of Steel Grades of Structural Elements in Applied Mechanics Oleh Yushkevych ORCID: https://orcid.org/0000-0002-7199-8424 Oles Honchar Dnipro National University Valerii Ihnatkin ORCID: https://orcid.org/0000-0002-3332-1105 Interregional Academy of Personnel Management: Mykhailo Hrushevskyi Prykarpathian Institute There is a need to develop universal classification features by which it is possible to combine steels into groups and then find very similar properties in them. The aim of the work was to develop an indicator of the capacity of technical information of steel grades. Theoretical …

Innovative Technologies in Mechanical EngineeringDevelopment of a physical and mathematical model of gas flows in a triple coaxial nozzle

Development of a physical and mathematical model of gas flows in a triple coaxial nozzle

Development of a physical and mathematical model of gas flows in a triple coaxial nozzle Olena Karpovych ORCID: https://orcid.org/0000-0002-0677-5822 Oles Honchar Dnipro National University Yevhen Karakash ORCID: https://orcid.org/0000-0003-3833-2396 Ukrainian State University of Science and Technologies Denys Zhumar ORCID: https://orcid.org/0009-0006-0381-7114 Oles Honchar Dnipro National University Oleksandr Taran ORCID: https://orcid.org/0009-0009-3744-9155 Oles Honchar Dnipro National University The method of coaxial laser processing of powder materials is highly productive and takes place in a protective atmosphere. The shielding gas flows form the shape and …

Engines, Energy and ThermotechnicsThe problem of combustion instability in liquid rocket engines

The problem of combustion instability in liquid rocket engines

The problem of combustion instability in liquid rocket engines Samir Vekilov ORCID: https://orcid.org/0000-0001-5736-6300 Oles Honchar Dnipro National University Volodymyr Lipovskyi ORCID: https://orcid.org/0000-0002-7939-7973 Oles Honchar Dnipro National University Roman Pustovyi ORCID: https://orcid.org/0009-0002-6066-9788 Dnipro Aerospace LLC, Ukraine The purpose of this work is to carry out an overview on combustion instability in liquid propellant rocket engines, its classification, the main principles of occurrence as well as ways to prevent the phenomena while designing of the prospective engine. A new approach is based …

Innovative Technologies in Mechanical EngineeringImprovement of reinforcement technique of parts with composite fiber in FDM 3D-printing

Improvement of reinforcement technique of parts with composite fiber in FDM 3D-printing

Improvement of reinforcement technique of parts with composite fiber in FDM 3D-printing Maksym Sirenko ORCID: https://orcid.org/0009-0006-0417-2661 Oles Honchar Dnipro National University Olena Karpovych ORCID: https://orcid.org/0000-0002-0677-5822 Oles Honchar Dnipro National University The use of parts produced via FDM 3D-printing is getting more and more popular withing aerospace field. Parts, made with such additive manufacturing methods, can be used for prototyping, as manufacturing implements or used directly as an end product. One of the means of improving the functional parameters of parts …

Ecology, industrial and environmental safetyReduction of the risk of disease to the population through dusting of agglomeration gases

Reduction of the risk of disease to the population through dusting of agglomeration gases

Reduction of the risk of disease to the population through dusting of agglomeration gases Yuliia Voitenko ORCID: https://orcid.org/0000-0003-0819-3794 Oles Honchar Dnipro National University The analysis of methods and means of dedusting at sinter plants of our country showed an insufficient level of sinter gases purification. It is established that in order to achieve the required degree of gas purification, it is necessary to reduce the flow of dust into the air directly in the sources of dust formation. This will …

Ecology, industrial and environmental safetyInternational waste trade: environment or business

International waste trade: environment or business

International waste trade: environment or business Nataliia Krasnikova ORCID: https://orcid.org/0000-0002-6484-2050 Oles Honchar Dnipro National University Dmytro Kobyliak ORCID: https://orcid.org/0009-0005-6362-6240 Oles Honchar Dnipro National University The modern world generates a huge number of different wastes: household, construction, industrial, medical etc. More developed countries generate more waste as a result of economic activity. Such countries have an important need for waste disposal. Since developed countries have strict environmental legislation, waste disposal is expensive and stimulates the need for their removal from the …