20 research outputs found

    Measurement of direct photon emission in K+β†’Ο€+Ο€0Ξ³K^+ \to \pi^+ \pi^0 \gamma decay using stopped positive kaons

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    The radiative decay K+β†’Ο€+Ο€0Ξ³K^+ \to \pi^+ \pi^0 \gamma (KΟ€2Ξ³K_{\pi 2 \gamma}) has been measured with stopped positive kaons. A KΟ€2Ξ³K_{\pi 2 \gamma} sample containing 4k events was analyzed, and the KΟ€2Ξ³K_{\pi 2 \gamma} branching ratio of the direct photon emission process was determined to be [6.1Β±2.5(stat)Β±1.9(syst)]Γ—10βˆ’6[6.1\pm2.5({\rm stat})\pm1.9({\rm syst})]\times 10^{-6}. No interference pattern with internal bremsstrahlung was observed.Comment: 12 pages, 6 figures, 2 tables, to be published in Phys. Lett.

    Technical requirements for measurements of minimal miscible pressure for gas injection using slim tube

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    Β© 2020 International Multidisciplinary Scientific Geoconference. All rights reserved. In this work the quality of the slim-tube packing was demonstrated, the inner diameter and porosity was determined by using X-ray computed tomography. The literature analysis of slim tube packing over was carried out. It is noted that in all cases of slim tube does not accept the most theoretically possible dense rhombic packaging. Moreover, the presence of interstices due to loose contact of the grains to each other illustrates the technological limitations when filling out. To confirm the absence of signs of defective packing, it is recommended to check the quality of the slim-tube

    Improvement of heavy oil displacement efficiency by using aromatic hydrocarbon solvent

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    Β© 2020 International Multidisciplinary Scientific Geoconference. All rights reserved. Development of heavy oil deposits increases each year, due to consumption of conventional oil reserves. However, extraction process of heavy oil faces a number of problems. The main of these problems are high density and viscosity of heavy oil as well as high content of asphaltene-resin-paraffin components, which can be precipitated. Currently, the main methods that are being used for heavy oil recovery are thermal methods, like steam assisted gravity drainage (SAGD), cyclic steam stimulation (CSS) and in-situ combustion (ISC). Another alternative is using solvent-based recovery methods, which have advantages in terms of energy effectiveness and cost efficiency. In this work, using aromatic hydrocarbon solvent is considered as an oil displacement method. Solvent o-xylene has been chosen as the research object due to its vast area of application and ability to remove organic deposits. In this work different experimental techniques were conducted to evaluate the injection of xylene for improvement heavy oil recovery. Capillary imbibition experiments of oil saturated core samples by formation water and xylene solvent were conducted in order to compare their effectiveness under standard conditions. Filtration studies under reservoir conditions were performed on a core sample model saturated with heavy oil to evaluate displacement efficiency. In addition, filtration-volumetric parameters of core samples, group and elemental composition of oil, viscosity dependence on a solvent concentration, thermal stability of solvent as well as its aggregative stability were studied. According to the obtained results, application of o-xylene in imbibition experiments (duration 7 days) helped to increase displacement efficiency from 20 % in case of water to 61 % in case of solvent. Addition of small amount of solvent to heavy oil significantly decreased its viscosity. In case of addition of 3 wt.% of solvent viscosity of heavy oil reduced more than two times from 427.18 mPaΒ·s to 208.4 mPaΒ·s. Compared with the basic waterflooding process, using solvent injection leads to three times increasing of oil displacement efficiency, which reaches 69 %. In addition, o-xylene showed good dissolving ability with lowest cloud number of heavy oil in its media, which is equal to 0.22. According to the laboratory studies pilot test will be performed at the Akanskoye field using studied solvent

    Prediction of the geometric parameters of products assemblies using neural network models

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    ИспользованиС ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·Π½Ρ‹Ρ… ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ тСхнологичСских процСссов сборки отвСтствСнных ΠΈΠ·Π΄Π΅Π»ΠΈΠΉ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΡ‚ ΠΎΠ±Π΅ΡΠΏΠ΅Ρ‡ΠΈΡ‚ΡŒ Π°Π΄Π°ΠΏΡ‚ΠΈΠ²Π½ΠΎΠ΅ ΡƒΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ сборкой Π½Π° основС ΠΈΠ·ΠΌΠ΅Ρ€Π΅Π½Π½ΠΎΠΉ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ. ΠŸΡ€ΡΠΌΠΎΠ΅ ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ процСсса сопряТСний с использованиСм числСнных ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ сопряТСний ΠΈ ΠΊΠΎΠ½Π΅Ρ‡Π½ΠΎ-элСмСнтных ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ сборок Ρ‚Ρ€Π΅Π±ΡƒΠ΅Ρ‚ сущСствСнных Π²Ρ‹Ρ‡ΠΈΡΠ»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… рСсурсов ΠΈ Π·Π°Ρ‡Π°ΡΡ‚ΡƒΡŽ сопровоТдаСтся ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ°ΠΌΠΈ сходимости Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ. Для Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ ΠΏΡ€ΠΈΠ²Π΅Π΄Π΅Π½Π½Ρ‹Ρ… ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ использованиС нСйросСтСвых ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ, ΠΎΠΏΠΈΡΡ‹Π²Π°ΡŽΡ‰ΠΈΡ… основныС закономСрности процСсса сопряТСния Π½Π° основС Π½Π°ΠΊΠΎΠΏΠ»Π΅Π½Π½Ρ‹Ρ… Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ². Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€ΠΈΠ²Π΅Π΄Π΅Π½Π° ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠ° для прогнозирования точности сопряТСния Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ Π½Π° основС Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… гСомСтричСских ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ повСрхностСй. Π”Π΅ΠΉΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ ΠΌΠΎΠ΄Π΅Π»ΠΈ Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ ΠΏΡ€Π΅Π΄ΡΡ‚Π°Π²Π»ΡΡŽΡ‚ собой массивы Ρ‚ΠΎΡ‡Π΅ΠΊ ΠΈΡ… повСрхностСй. Π’ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠ΅ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ΡΡ разработанная модСль, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰Π°Ρ ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚ΡŒ расчСт сборочных гСомСтричСских ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ. РассмотрСны Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ модСлирования сопряТСния Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ диск ΠΈ проставка Ρ€ΠΎΡ‚ΠΎΡ€Π° Ρ‚ΡƒΡ€Π±ΠΈΠ½Ρ‹. Для ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·Π° ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Π° Β«Ρ€Π°Π΄ΠΈΠ°Π»ΡŒΠ½ΠΎΠ΅ Π±ΠΈΠ΅Π½ΠΈΠ΅Β» Π² зависимости ΠΎΡ‚ Π²Π΅Π»ΠΈΡ‡ΠΈΠ½Ρ‹ ΠΈ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π° отклонСния Ρ„ΠΎΡ€ΠΌΡ‹ ΠΈ Π²Π΅Π»ΠΈΡ‡ΠΈΠ½Ρ‹ натяга сопрягаСмых повСрхностСй Π±Ρ‹Π»Π° создана ΠΈ ΠΎΠ±ΡƒΡ‡Π΅Π½Π° Ρ€Π°Π΄ΠΈΠ°Π»ΡŒΠ½ΠΎ-базисная нСйронная ΡΠ΅Ρ‚ΡŒ. The use of predictive models of technological processes for the assembly of critical products will allow for the adaptive management of the assembly based on the measured information. Direct simulation of the conjugation process using numerical models of interfaces and finite element models of assemblies requires significant computational resources and is often accompanied by convergence problems of solutions. To solve these problems, it is possible to use neural network models describing the main regularities of the conjugation process on the basis of accumulated results. In this paper, a technique is given for predicting the accuracy of the interface of parts on the basis of real geometric models of surfaces. The actual parts models are arrays of points on their surfaces. The methodology uses the developed model, which allows to calculate the assembly geometric parameters of parts. The results of modeling the mating of disk and spacer of the turbine rotor are considered. To predict the parameters of radial runout of the disk in the assembly, depending on the magnitude and nature of the form deviation and the magnitude of the gap of the interfaced surfaces, a radial-basic neural network was created and trained.Π Π°Π±ΠΎΡ‚Π° ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠ°Π½Π° ΠœΠΈΠ½ΠΈΡΡ‚Π΅Ρ€ΡΡ‚Π²ΠΎΠΌ образования ΠΈ Π½Π°ΡƒΠΊΠΈ Российской Π€Π΅Π΄Π΅Ρ€Π°Ρ†ΠΈΠΈ Π² Ρ€Π°ΠΌΠΊΠ°Ρ… Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΡ‹ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ конкурСнтоспособности Бамарского унивСрситСта срСди ΠΌΠΈΡ€ΠΎΠ²Ρ‹Ρ… Π²Π΅Π΄ΡƒΡ‰ΠΈΡ… Π½Π°ΡƒΡ‡Π½ΠΎ-ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… Ρ†Π΅Π½Ρ‚Ρ€ΠΎΠ² Π½Π° 2013-2020 Π³ΠΎΠ΄Ρ‹

    Model and software module for predicting uncertainties in coordinate measurements in the NX OPEN API

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    Π’ CAM-систСмах (Computer-aided manufacturing) сущСствуСт Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΈΠΌΠΈΡ‚ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ процСсс измСрСния Π½Π° станкС ΠΈ ΠΊΠΎΠΎΡ€Π΄ΠΈΠ½Π°Ρ‚Π½ΠΎ-ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ машинС, ΠΈ Π³Π΅Π½Π΅Ρ€ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΠ΅ ΠΊΠΎΠΌΠ°Π½Π΄Ρ‹ измСрСния Π² ΡƒΠΏΡ€Π°Π²Π»ΡΡŽΡ‰Π΅ΠΉ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ΅. Π˜Π·ΠΌΠ΅Ρ€Π΅Π½ΠΈΡ ΠΌΠΎΠ³ΡƒΡ‚ ΡΠ»ΡƒΠΆΠΈΡ‚ΡŒ основой для Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… схСм Π°Π΄Π°ΠΏΡ‚ΠΈΠ²Π½ΠΎΠΉ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ. Π“Π»Π°Π²Π½ΠΎΠ΅ достоинство состоит Π² Ρ‚ΠΎΠΌ, Ρ‡Ρ‚ΠΎ ΠΏΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌ измСрСния ΠΌΠΎΠΆΠ½ΠΎ автоматичСски ΡΠΊΠΎΡ€Ρ€Π΅ΠΊΡ‚ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ процСсс ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ, Π½Π΅ снимая Π΄Π΅Ρ‚Π°Π»ΠΈ со станка. ΠŸΡ€ΠΈ ΠΈΠ·ΠΌΠ΅Ρ€Π΅Π½ΠΈΠΈ ΡΠ»ΠΎΠΆΠ½ΠΎΠΏΡ€ΠΎΡ„ΠΈΠ»ΡŒΠ½Ρ‹Ρ… Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ Π½Π° станкС ΠΈ ΠΊΠΎΠΎΡ€Π΄ΠΈΠ½Π°Ρ‚Π½ΠΎ-ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ машинС (ΡˆΡ‚Π°ΠΌΠΏΡ‹, Π»ΠΎΠΏΠ°Ρ‚ΠΊΠΈ Π΄Π²ΠΈΠ³Π°Ρ‚Π΅Π»Π΅ΠΉ) сущСствСнно Π²ΠΎΠ·Ρ€Π°ΡΡ‚Π°ΡŽΡ‚ нСопрСдСлСнности измСрСния, расчСт ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… Π² соврСмСнных CAM-систСмах (Π½Π°ΠΏΡ€ΠΈΠΌΠ΅Ρ€, NX ΠΎΡ‚ ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ SIEMENS ΠΈ CATIA ΠΎΡ‚ ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ Dassault SystΓ¨mes) ΠΏΡ€ΠΈ построСнии ΡƒΠΏΡ€Π°Π²Π»ΡΡŽΡ‰ΠΈΡ… ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ Π½Π΅ производится. Π­Ρ‚ΠΎ ΠΌΠΎΠΆΠ΅Ρ‚ привСсти ΠΊ ΠΏΠΎΡ‚Π΅Ρ€Π΅ точности изготовлСния (вслСдствиС нСдостаточной точности ΠΈΠ·ΠΌΠ΅Ρ€Π΅Π½ΠΈΠΉ) ΠΏΡ€ΠΈ внСшнС ΠΎΡ‚Π»Π°ΠΆΠ΅Π½Π½ΠΎΠΉ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ΅ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ‹ модСль ΠΈ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ½Ρ‹ΠΉ ΠΌΠΎΠ΄ΡƒΠ»ΡŒ для прогнозирования ΠΏΠΎΠ³Ρ€Π΅ΡˆΠ½ΠΎΡΡ‚Π΅ΠΉ ΠΈΠ·ΠΌΠ΅Ρ€Π΅Π½ΠΈΠΉ, Ρ€Π΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠ΅ срСдствами NX OPEN API, ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ ΠΈΠ½Ρ‚Π΅Π³Ρ€ΠΈΡ€ΠΎΠ²Π°Π½ΠΎ Π² ΠΌΠΎΠ΄ΡƒΠ»Π΅ CAM. In CAM-systems (Computer-aided manufacturing), it is possible to simulate the measurement process on the machine and coordinate measuring machine, and generate measurement commands in the control program. Measurements can serve as the basis for the implementation of various adaptive processing schemes. The main advantage is that, based on the measurement results, you can automatically adjust the machining process without removing the parts from the machine. When measuring complex parts on the machine and coordinate measuring machine (stamps, engine blades), measurement uncertainties significantly increase, which are not calculated in modern CAM-systems (for example, NX from SIEMENS and CATIA from DassaultSystΓ¨mes). This can lead to a loss of processing precision (due to inadequate measurement accuracy) with an externally debugged program. The paper proposes a model and a software module for the prediction of measurement uncertainties, implemented by means of the NX OPEN API, which can be integrated into the CAM module.Π Π°Π±ΠΎΡ‚Π° Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π° ΠΏΡ€ΠΈ финансовой ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠΊΠ΅ ΠœΠΈΠ½ΠΈΡΡ‚Π΅Ρ€ΡΡ‚Π²Π° образования ΠΈ Π½Π°ΡƒΠΊΠΈ Российской Π€Π΅Π΄Π΅Ρ€Π°Ρ†ΠΈΠΈ Π² Ρ€Π°ΠΌΠΊΠ°Ρ… выполнСния государствСнного задания Π½Π° 2018 Π³ΠΎΠ΄. Π¨ΠΈΡ„Ρ€ ΠΏΡ€ΠΎΠ΅ΠΊΡ‚Π° 9.11978.2018/11.12

    Neural recognition model surfaces of machine parts based on the results of the optical scanning

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    Для прогнозирования ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ качСства ΠΈΠ·Π΄Π΅Π»ΠΈΠΉ (Π² частности, сборочных ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ²) ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΡŽΡ‚ΡΡ матСматичСскиС ΠΌΠΎΠ΄Π΅Π»ΠΈ, Ρ€Π΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½Ρ‹Π΅ Π² Π²ΠΈΠ΄Π΅ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½Ρ‹Ρ… ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ. Для адСкватности расчётов Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎ ΠΈΠΌΠ΅Ρ‚ΡŒ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡŽ ΠΎ Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Π³Π΅ΠΎΠΌΠ΅Ρ‚Ρ€ΠΈΠΈ Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ, ΠΊΠΎΡ‚ΠΎΡ€ΡƒΡŽ ΠΌΠΎΠΆΠ½ΠΎ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚ΡŒ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ бСсконтактных ΠΈΠ·ΠΌΠ΅Ρ€Π΅Π½ΠΈΠΉ Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ сборки. Π’ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ измСрСния Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ ΠΈ ΡƒΠ·Π»ΠΎΠ² ΠΏΡ€ΠΈ ΠΏΠΎΠΌΠΎΡ‰ΠΈ оптичСских ΠΈΠ»ΠΈ Π»Π°Π·Π΅Ρ€Π½Ρ‹Ρ… сканСров формируСтся массив ΠΈΠ·ΠΌΠ΅Ρ€Π΅Π½Π½Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ большой размСрности. ПослС провСдСния стандартной ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ Π΄Π°Π½Π½Ρ‹Ρ… (Π½Π°ΠΏΡ€ΠΈΠΌΠ΅Ρ€ ΡƒΠ΄Π°Π»Π΅Π½ΠΈΠ΅ ΡˆΡƒΠΌΠ°, совмСщСниС сканов, сглаТиваниС, созданиС триангуляционной сСтки) Π²ΠΎΠ·Π½ΠΈΠΊΠ°Π΅Ρ‚ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ распознавания ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½Ρ‹Ρ… повСрхностСй Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€ΠΈΠ²Π΅Π΄Π΅Π½Π° нСйросСтСвая модСль, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰Π°Ρ Π²Ρ‹ΠΏΠΎΠ»Π½ΡΡ‚ΡŒ распознаваниС элСмСнтов Π½Π° основС использования массива ΠΈΠ·ΠΌΠ΅Ρ€Π΅Π½Π½Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… посрСдством сканирования. To predict the quality parameters of products (in particular, the assembly parameters) used mathematical models implemented in the form of computer models. For the adequacy of calculations, it is necessary to have information about the actual geometry of the parts, which can be obtained using noncontact measurements of parts of the assembly. As a result of measurement of parts and components using optical or laser scanner is formed an array of measured points large dimension. After the standard processing (e.g. noise removal, combining the scans, smoothing, creating triangulation mesh) becomes necessary recognition of individual surfaces of parts. The paper presents a neural network model that allows the recognition of elements based on the use of an array of measured points obtained by scanning.Π Π°Π±ΠΎΡ‚Π° ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠ°Π½Π° ΠœΠΈΠ½ΠΈΡΡ‚Π΅Ρ€ΡΡ‚Π²ΠΎΠΌ образования ΠΈ Π½Π°ΡƒΠΊΠΈ Российской Π€Π΅Π΄Π΅Ρ€Π°Ρ†ΠΈΠΈ Π² Ρ€Π°ΠΌΠΊΠ°Ρ… Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΡ‹ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ конкурСнтоспособности Бамарского унивСрситСта срСди ΠΌΠΈΡ€ΠΎΠ²Ρ‹Ρ… Π²Π΅Π΄ΡƒΡ‰ΠΈΡ… Π½Π°ΡƒΡ‡Π½ΠΎ-ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… Ρ†Π΅Π½Ρ‚Ρ€ΠΎΠ² Π½Π° 2013-2020 Π³ΠΎΠ΄Ρ‹. Π­ΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Π΅ исслСдования Π±Ρ‹Π»ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Ρ‹ Π½Π° ΠΎΠ±ΠΎΡ€ΡƒΠ΄ΠΎΠ²Π°Π½ΠΈΠΈ ЦКП CAM-Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ (RFMEFI59314X0003)

    Information model and software architecture for the implementation of the digital twin of the turbine rotor

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    ΠŸΠΎΠ³Ρ€Π΅ΡˆΠ½ΠΎΡΡ‚ΠΈ изготовлСния Ρ€ΠΎΡ‚ΠΎΡ€Π° Ρ‚ΡƒΡ€Π±ΠΈΠ½Ρ‹ приводят ΠΊ возникновСнию Π²ΠΈΠ±Ρ€Π°Ρ†ΠΈΠΈΜ†, ΠΎΠ³Ρ€Π°Π½ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‰ΠΈΡ… допустимыС Ρ€Π΅ΠΆΠΈΠΌΡ‹ Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π°Π²ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Π΄Π²ΠΈΠ³Π°Ρ‚Π΅Π»Π΅ΠΈΜ†. Для ΡƒΠΌΠ΅Π½ΡŒΡˆΠ΅Π½ΠΈΡ ΠΏΠΎΠ΄ΠΎΠ±Π½Ρ‹Ρ… Π²ΠΈΠ±Ρ€Π°Ρ†ΠΈΠΈΜ† тСкущая тСхнология изготовлСния Ρ€ΠΎΡ‚ΠΎΡ€Π° содСрТит ΡΠ»ΠΎΠΆΠ½ΡƒΡŽ ΠΏΡ€ΠΎΡ†Π΅Π΄ΡƒΡ€Ρƒ Π΅Π³ΠΎ балансировки. Π‘ΠΎΠ·Π΄Π°Π½ΠΈΠ΅ Ρ†ΠΈΡ„Ρ€ΠΎΠ²ΠΎΠ³ΠΎ Π΄Π²ΠΎΠΈΜ†Π½ΠΈΠΊΠ° Ρ€ΠΎΡ‚ΠΎΡ€Π° Ρ‚ΡƒΡ€Π±ΠΈΠ½Ρ‹ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΡ‚ ΠΎΡ‚ΠΊΠ°Π·Π°Ρ‚ΡŒΡΡ ΠΎΡ‚ ΠΏΡ€ΠΎΡ†Π΅Π΄ΡƒΡ€Ρ‹ балансировки ΠΈ ΡΠ½ΠΈΠ·ΠΈΡ‚ΡŒ Π·Π°Ρ‚Ρ€Π°Ρ‚Ρ‹ Π½Π° ΠΈΠ·Π³ΠΎΡ‚ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ Π΄Π΅Ρ‚Π°Π»ΠΈ. Π’ Π΄Π°Π½Π½ΠΎΠΈΜ† Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСны Ρ‚Π°ΠΊΠΈΠ΅ этапы создания Ρ†ΠΈΡ„Ρ€ΠΎΠ²ΠΎΠ³ΠΎ Π΄Π²ΠΎΠΈΜ†Π½ΠΈΠΊΠ° ΠΊΠ°ΠΊ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ Ρ‚ΠΈΠΏΠΈΡ‡Π½Ρ‹Ρ… ΠΏΠΎΠ³Ρ€Π΅ΡˆΠ½ΠΎΡΡ‚Π΅ΠΈΜ† изготовлСния Ρ€ΠΎΡ‚ΠΎΡ€Π° Ρ‚ΡƒΡ€Π±ΠΈΠ½Ρ‹, построСниС Ρ†ΠΈΡ„Ρ€ΠΎΠ²ΠΎΠ³ΠΎ Π΄Π²ΠΎΠΈΜ†Π½ΠΈΠΊΠ° Π΄Π΅Ρ‚Π°Π»ΠΈ с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ ΠΏΠΎΠ³Ρ€Π΅ΡˆΠ½ΠΎΡΡ‚Π΅ΠΈΜ† изготовлСния ΠΈ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ Π΅Π³ΠΎ ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… характСристик. Анализ свойств Π΄Π²ΠΎΠΈΜ†Π½ΠΈΠΊΠ° позволяСт ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π΅Π³ΠΎ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹ ΠΈ Π΄ΠΎΠ±ΠΈΡ‚ΡŒΡΡ сниТСния Π²ΠΈΠ±Ρ€Π°Ρ†ΠΈΠΈΜ† всСго двигатСля.Π Π°Π±ΠΎΡ‚Π° Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π° ΠΏΡ€ΠΈ финансовой ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠΊΠ΅ ΠœΠΈΠ½ΠΈΡΡ‚Π΅Ρ€ΡΡ‚Π²Π° образования ΠΈ Π½Π°ΡƒΠΊΠΈ Российской Π€Π΅Π΄Π΅Ρ€Π°Ρ†ΠΈΠΈ Π² Ρ€Π°ΠΌΠΊΠ°Ρ… выполнСния государствСнного задания Π½Π° 2019 Π³ΠΎΠ΄, ΡˆΠΈΡ„Ρ€ ΠΏΡ€ΠΎΠ΅ΠΊΡ‚Π° 9.11978.2018/11.12. Π’ процСссС выполнСния Ρ€Π°Π±ΠΎΡ‚ использовалось ΠΎΠ±ΠΎΡ€ΡƒΠ΄ΠΎΠ²Π°Π½ΠΈΠ΅ ЦКП CAM- Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈΜ† Бамарского унивСрситСта

    Neural network model in predicting digital geometric parameters relative position of aircraft engine parts

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    ΠšΠ°Ρ‡Π΅ΡΡ‚Π²ΠΎ Π°Π²ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΈ Ρ€Π°ΠΊΠ΅Ρ‚Π½Ρ‹Ρ… Π΄Π²ΠΈΠ³Π°Ρ‚Π΅Π»Π΅ΠΉ зависит ΠΏΡ€Π΅ΠΆΠ΄Π΅ всСго ΠΎΡ‚ гСомСтричСской точности сборочных Π΅Π΄ΠΈΠ½ΠΈΡ† ΠΈ Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ. Для прогнозирования ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ качСства (Π² частности, сборочных ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ²) ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΡŽΡ‚ΡΡ матСматичСскиС ΠΌΠΎΠ΄Π΅Π»ΠΈ, Ρ€Π΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½Ρ‹Π΅ Π² Π²ΠΈΠ΄Π΅ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½Ρ‹Ρ… ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ. ΠŸΡ€ΡΠΌΠΎΠ΅ ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ процСсса сопряТСний с использованиСм числСнных ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ сопряТСний ΠΈ ΠΊΠΎΠ½Π΅Ρ‡Π½ΠΎ-элСмСнтных ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ сборок Ρ‚Ρ€Π΅Π±ΡƒΠ΅Ρ‚ сущСствСнных Π²Ρ‹Ρ‡ΠΈΡΠ»ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… рСсурсов ΠΈ Π·Π°Ρ‡Π°ΡΡ‚ΡƒΡŽ сопровоТдаСтся ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ°ΠΌΠΈ сходимости Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ. Для Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ ΠΏΡ€ΠΈΠ²Π΅Π΄Π΅Π½Π½Ρ‹Ρ… ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ использованиС нСйросСтСвых ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ, ΠΎΠΏΠΈΡΡ‹Π²Π°ΡŽΡ‰ΠΈΡ… основныС закономСрности процСсса сопряТСния Π½Π° основС Π½Π°ΠΊΠΎΠΏΠ»Π΅Π½Π½Ρ‹Ρ… Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ². Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€ΠΈΠ²Π΅Π΄Π΅Π½Π° нСйросСтСвая модСль для прогнозирования сборочных ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ Π½Π° основС использования Π΄Π΅ΠΉΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… повСрхностСй Π΄Π΅Ρ‚Π°Π»Π΅ΠΉ, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… Π² Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ матСматичСского модСлирования. РассмотрСна сборка ΠΏΠΎ коничСским повСрхностям. Для ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·Π° ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² сборок использована свёрточная нСйронная ΡΠ΅Ρ‚ΡŒ. The quality of aircraft and rocket engines depends primarily on the geometrical accuracy of assembly units and parts. To predict the quality parameters (in particular, the assembly parameters) used mathematical models implemented in the form of computer models. Direct modeling of the process of assembly using numerical models of conjugations and finite- element models of assemblies requires significant computational resources and is often accompanied by problems of convergence of solutions. To solve the above problems, it is possible to use neural network models describing the main regularities of the pairing process based on the accumulated results. The paper shows a neural network model for predicting the parameters of assembly parts based on the use of real surfaces of parts obtained as a result of mathematical modeling. Considered assembly on conical surfaces. To predict the parameters of the assemblies, a convolutional neural network was used.Π Π°Π±ΠΎΡ‚Π° Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π° ΠΏΡ€ΠΈ финансовой ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠΊΠ΅ ΠœΠΈΠ½ΠΈΡΡ‚Π΅Ρ€ΡΡ‚Π²Π° образования ΠΈ Π½Π°ΡƒΠΊΠΈ Российской Π€Π΅Π΄Π΅Ρ€Π°Ρ†ΠΈΠΈ Π² Ρ€Π°ΠΌΠΊΠ°Ρ… выполнСния государствСнного задания Π½Π° 2019 Π³ΠΎΠ΄. Π¨ΠΈΡ„Ρ€ ΠΏΡ€ΠΎΠ΅ΠΊΡ‚Π° 9.11978.2018/11.12
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