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Загальна кількість знайдених документів : 3
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1.

Komisarov O. 
Citizens’right to peaceful meeting:problems of terminological uncertaint [Електронний ресурс] / O. Komisarov // Науковий вісник Дніпропетровського державного університету внутрішніх справ. - 2018. - № 2. - С. 101-104. - Режим доступу: http://nbuv.gov.ua/UJRN/nvdv_s_2018_2_24
Попередній перегляд:   Завантажити - 743.45 Kb    Зміст випуску     Цитування
2.

Maiorova K. 
Implementation of reengineering technology to ensure the predefined geometric accuracy of a light aircraft keel [Електронний ресурс] / K. Maiorova, I. Vorobiov, M. Boiko, V. Suponina, O. Komisarov // Eastern-european journal of enterprise technologies. - 2021. - № 6(1). - С. 6-12. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2021_6(1)__3
The subject of this research is the technology of reengineering and control of parts of aircraft objects (AOs) and technological equipment for their manufacture. The predefined accuracy of the keel of a light aircraft and molding surfaces of technological equipment for its manufacture has been ensured by using reengineering technology and CAD systems. A portrait of the actual physically existing keel of a light aircraft was built in the *.stl file format using the software Artec Studio (USA). The control and comparison of the geometry of the shapes of the analytical standard with the actual physically existing keel of a light aircraft based on its portrait have been implemented. The methods used are the analysis and synthesis of the experimental geometry of shapes, the method of expert evaluations. The following results were obtained: based on the analysis and synthesis, the presence of significant errors in the accuracy of the manufacture of the keel for a light aircraft in the range from -5,26 mm to +5,39 mm was detected. It has been shown that the key factor is the keel's relative plane indicator, which is outside the tolerance margin and is 85 %. It was decided to fabricate new technological equipment from another material - organic plastics. Control of the technological equipment made from organic plastics for the keel of a light aircraft showed that the shape-forming surfaces of the equipment have appropriate shapes and sizes corresponding to the existing analytical standard and are devoid of inaccuracies that occurred in the previous version. The range of keel margins that was made using the new technological equipment from organic plastics is from -0,51 mm to +0,34 mm while the relative plane of the keel outside the tolerance margin does not exceed 15 %. The study results showed the adequacy of the decisions taken, ensuring the predefined accuracy for the keel of a light aircraft and molding surfaces of technological equipment for its manufacture.
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3.

Sikulskiy V. 
Implementation of reengineering technology to reduce the terms of the technical preparation of manufacturing of aviation technology assemblies [Електронний ресурс] / V. Sikulskiy, K. Maiorova, I. Vorobiov, M. Boiko, O. Komisarov // Eastern-European journal of enterprise technologies. - 2022. - № 3(1). - С. 25-32. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2022_3(1)__5
The object of this study is the technical preparation of manufacturing (TPM) of aviation technology (AT) using reengineering technology. The task to reduce the terms of TPM AT was tackled while solving direct and inverse problems of shape formation involving reengineering. The study is based on the equation for calculating the labor intensity of creating an assembly unit (AU) as a mathematical model for the formation and accumulation of components of the total labor intensity at all stages. The following results are reported: a scheme has been proposed for linking homogeneous components of an article obtained using the loft-template method (LTM) with digital mock-up (DMU) when applying the reengineering method. The scheme summarizes and structures the reengineering technology to solve direct and inverse shape-formation problems and could be used to solve the tasks of prototyping, manufacturing, and refurbishment of tooling, as well as article control at all stages of production. An example of the helicopter stabilizer shows that when solving the direct shape-formation problem, the labor intensity is from 294,94 to 315,06 man-hours, and when solving the inverse problem - from 194,78 to 213,22 manhours. A comparative analysis of the labor intensity of TPM revealed a difference of 1,5 times in favor of the labor intensity of solving the inverse problem. Comparing the labor intensity of creating DMU for the stabilizer of a helicopter has made it possible to establish that the labor intensity of solving the inverse problem is 3,7 times less than the labor intensity of solving a direct problem. Recommendations for reducing the terms of TPM AT with the use of reengineering are given. The results could be used to assess the labor intensity and timing of TPM AT and mechanical engineering objects in general when using reengineering technology.
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