Bulletin of Bryansk state technical university最新文献

{"title":"INTERACTION OF SPATIAL OSCILLATION WITH ROUGHNESS OF SURFACE WORKED BY EXAMPLE OF TURNING","authors":"V. Schetinin, P. Sablin","doi":"10.30987/1999-8775-2021-1-4-9","DOIUrl":"https://doi.org/10.30987/1999-8775-2021-1-4-9","url":null,"abstract":"The work purpose is to determine the impact of cutter spatial oscillation upon parameters and values of worked surface roughness, in particular, the paper is dedicated to the definition of differences in roughness parameters depending on a projecting plane in which cutter oscillation is considered. \u0000There are considered the matters of the impact of cutter spatial oscillation upon roughness of the surface worked, and also cutting parameters influencing the intensity and frequency of oscillation of cutter point oscillation. The solution of the problems specified is carried out on the basis of the analysis of data published in scientific literature and experimental data obtained in the course of investigations. \u0000The novelty of the work: it is revealed that a dynamic state of the technological system for machining which depends upon a multitude of factors has an influence not only upon a value of surface roughness, but also upon its parameter. \u0000Conclusion: surface roughness depends upon relative oscillation processes of the part under machining and a tool cutting edge in the working space caused mainly by a process of chip formation.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"10 1","pages":"4-9"},"PeriodicalIF":0.0,"publicationDate":"2021-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75786932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MATERIAL MODELS AT RESEARCH OF WAVE DEFORMATION STRENGTHENING THROUGH FINITE ELEMENT METHOD","authors":"A. Kirichek, S. Barinov, S. Silantiev, A. Yashin, A. Zaycev","doi":"10.30987/1999-8775-2021-1-28-33","DOIUrl":"https://doi.org/10.30987/1999-8775-2021-1-28-33","url":null,"abstract":"The problem of necessity in the development of loading environment models (materials processed) which has great importance at the finite element simulation of basic processes (technologies) is considered. \u0000 As a rule, material model programs embedded into CAE cannot be used completely in the computations because of their limited set of physical-mechanical properties, most often insufficient for the adequate simulation of the process under investigation. By the example of the technology of wave deformation strengthening taking into account its peculiarities in the paper for the first time there are developed material models: steel45, BrAZh9-4; VT1-0; B-95 and the estimation of their adequacy is carried out. The creation of each model of material is a unique process and implies not only the pattern completion with data from reference books, but also with data obtained as a result of the fulfillment of corresponding experimental investigations of properties peculiar to material under working. As a result there are developed adequate models of materials having an admissible error (not exceeding 7.4%) for micro-hardness and depth of surface layer strengthening that allows recommending their use at the investigation of wave deformation strengthening through a finite element method.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"22 1","pages":"28-33"},"PeriodicalIF":0.0,"publicationDate":"2021-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78046225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"AUTOMATED EFFECTIVENESS CONTROL SYSTEM OF TOOL HOUSE FOR TOOL STRENGTHENING IN GLOW DISCHARGE","authors":"V. Logvin, T. Karlova","doi":"10.30987/1999-8775-2021-1-19-27","DOIUrl":"https://doi.org/10.30987/1999-8775-2021-1-19-27","url":null,"abstract":"The work purpose consists in the increase of effectiveness and quality in the engineering process control of the tool house ensuring strengthening a wide range of different tools and tool materials in plasma-generators of a glow discharge. \u0000Investigation methods. The application of computer systems is for the simulation of real production object operation with the purpose of quality and effectiveness increase in these objects control as a method of investigations consisting in operation computer imitation of a tool house equipped with plasma-generators of a glow discharge both at separate stages of processing and in the course of the whole industrial process. \u0000It will allow developing an optimum system of quality control of engineering processes for processing a wide range of tools with different profiles and tool materials in plasma-generators of a glow discharge. The essence of a modeling method consists in the development of such algorithms and programs which imitate the behavior of the tool house equipped with plasma-generators of a glow discharge its properties necessary for investigations, amount and field of technological parameter changes \u0000Investigation results. Plasma formed in consequence of explosive emission has in its structure the whole essential spectrum of ions for the formation of specified physical-mechanical properties on working surfaces of tools under strengthening. It contributes to the formation of the essential structure of bombarding ion flow with the wide range of frequencies and energy. The state and value of the layer strengthened located under an oxide film and formed at the stage of previous working operations at manufacturing tools and their working parts. This layer is characterized with the increased density of dislocations in depth and micro-crack presence not only within grains but between them. The uniformity of force impact depending upon current strength stability in a discharge and voltage upon electrodes in the plasma-generator is to be adjusted at constant pressure by the rate of technological environment pumping through a plasma-generator. \u0000Conclusions. The application of some quickly reset plasma-generators in tool production ensures work effectiveness increase of the tool house at the expense of optimization of tool machining in different engineering processes and with different time duration carrying out pre-production operations in the course of the plasma-generators operation and carrying out their charging from the automated area of waiting. The simulation algorithm developed at the formation of the automated system for control and management of effectiveness and quality in tool house work in different tool strengthening in plasma-generators of a glow discharge with stages different in character of plasma impact, duration and sequence of their realization allowed optimizing tool house equipment. \u0000The development of the automated system for control and management of effectiveness and quality of the w","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"62 1","pages":"19-27"},"PeriodicalIF":0.0,"publicationDate":"2021-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75463010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MODEL OF INTEGRATED SYSTEM FOR QUALITY SUPPORT AT LIFE STAGES OF SCIENCE INTENSIVE PRODUCT","authors":"Polina Kalinina, E. Medvedev","doi":"10.30987/1999-8775-2020-12-66-70","DOIUrl":"https://doi.org/10.30987/1999-8775-2020-12-66-70","url":null,"abstract":"The work purpose is the development of the integrated model linking the information flows of product life cycle (PLC) processes for control effectiveness increase in manufacturing science intensive products. \u0000During the investigation fulfillment there was used a method for the acting system analysis of an information flow at a science intensive enterprise on the basis of the regulation basis studied. The result of the work is a single information space model created first for science intensive product. \u0000Conclusions: the model developed can be used by companies dealing with manufacturing science intensive product, for work effectiveness increase.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"125 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77279130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"IMPACT OF INTERLAMINAR ELLIPTICAL DEFECTS UPON BEHAVIOR OF RECTANGULAR CARBON PLASTIC PLATE AT STATIC AND DYNAMIC LOADS","authors":"Aleksandr L. Medvedskiy, M. Martirosov, A. Homchenko, Darina V. Dedova","doi":"10.30987/1999-8775-2020-12-19-30","DOIUrl":"https://doi.org/10.30987/1999-8775-2020-12-19-30","url":null,"abstract":"Исследовано влияние внутренних дефектов типа расслоений эллиптической формы на поведение прямоугольной пластины из углепластика при воздействии статической и динамической нагрузок. Получено распределение напряжений в слоях пластины при воздействии статической и динамической нагрузок. Определено распределение индексов разрушения с использованием различных критериев разрушения для однонаправленных композиционных материалов (на основе углеленты). Ключевые слова: пластина, метод, конечные элементы, дефекты, критерии, разрушения, композиты.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"15 1","pages":"19-30"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83448387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"QUALITY SUPPORT OF PARTS MANUFACTURED BY MEANS OF ADDITIVE TECHNOLOGIES","authors":"M. Kulikov, M. Larionov, Denis V. Gusev, E. Shevchuk","doi":"10.30987/1999-8775-2020-12-4-10","DOIUrl":"https://doi.org/10.30987/1999-8775-2020-12-4-10","url":null,"abstract":"On this account the purpose of this work became quality parameter support of products obtained with the aid of 3D-printing. By the authors there was carried out a series of investigations on samples manufactured on the Ultra 3 3D-printer of the Envision Tec. Company. The samples were manufactured in batches of seven samples in each. Each sample from the batch varied from each other with the growth angle α between the researched surface and a “contact window”, and also the thickness of the layer z. With the aid of the profile meter TR110 there was measured roughness and for a thorough analysis of roughness step dimensions there was used a probe microscope of SolverPro company operating in the mode of atomic-power microscopy. The data analysis helped to draw a conclusion on the nature of roughness formation at prototyping, and digital data obtained were accumulated in a table and with the aid of statistical processing there was deduced an equation of the roughness parameter dependence of the surface Ra upon initial technological parameters of the prototyping process. But further roughness improvement can be achieved with the combined shaping with the aid of additive technologies and further machining carried out on a single platform. Investigation methods: at the heart of the work underlie experimental methods of investigation. The investigations are carried out with the use of modern means of nondestructive control; with the use of methods of probe microscopy and standard methods of roughness measurement with the use of a profile meter. The processing of investigation results is carried out with the use of modern mathematical apparatus. Work novelty: there is defined the nature of roughness formation on the surface of a product manufactured with the aid of additive technologies at technological parameter variation of prototyping.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"318 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75245952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MONITORING OF AUTOMATED TECHNOLOGICAL ENVIRONMENT FOR TOOL WORKING IN PLASMA-GENERATOR OF GLOW DISCHARGE BASED ON NEURONET APPROACH","authors":"V. Logvin, T. Karlova","doi":"10.30987/1999-8775-2020-12-31-37","DOIUrl":"https://doi.org/10.30987/1999-8775-2020-12-31-37","url":null,"abstract":"Рассматриваются вопросы организации нейронной сети для выбора наиболее совершенной технологии управления разработанным технологическим процессом на основе постоянного мониторинга и оценки параметров качества этапов обработки инструментов в плазмогенераторе тлеющего разряда. Предложенный подход позволяет осуществлять выбор наиболее эффективных технологий управления на всех этапах быстропротекающих процессов обработки изделий с учётом их оптимизации. Разработана автоматизированная система мониторинга, учитывающая сложную структуру внутренних связей при обработке в тлеющем разряде. Ключевые слова: качество, управление, плазмогенератор, тлеющий разряд, автоматизированная технологическая среда, мониторинг, нейронная сеть.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"8 1","pages":"31-37"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73089607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"STRENGTH PROPERTIES INVESTIGATION OF COMPOSITE COATINGS WITH QUASI-CRYSTALS OBTAINED THROUGH METHODS OF GAS DYNAMIC SPUTTERING","authors":"O. Sil'chenko, M. Siluyanova, Petr Hopin","doi":"10.30987/1999-8775-2020-12-11-18","DOIUrl":"https://doi.org/10.30987/1999-8775-2020-12-11-18","url":null,"abstract":"The work purpose is to investigate strength properties of composite coatings with quasi-crystals obtained through the method of gas dynamic sputtering. \u0000The object of development: quasi-crystals based on titanium carbonitride clad with nickel. In the course of the work there is offered a method for investigations of coating strength based on a pin and adhesive method with composites based on titanium carbonitride. \u0000The novelty of this investigation consists in obtaining new materials and investigations of their physical-mechanical properties. \u0000Composite coating on the basis of titanium carbonitride has shown high separation properties. The destruction took place in an intermediate layer between VN20 and KNTP35. \u0000During 10 mm bending there is a fine even mesh. At the impact load made there were not observed chips and separations that allow using coating data in heavy-loaded parts.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"4 1","pages":"11-18"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80744981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DIAGNOSTICS OF ENGINEERING CUTTING SYSTEM USING CUTTING FORCE PARAMETERS","authors":"Bori Mokrickiy, A. Morozova","doi":"10.30987/1999-8775-2020-12-48-56","DOIUrl":"https://doi.org/10.30987/1999-8775-2020-12-48-56","url":null,"abstract":"The purpose of this work: the engineering process optimization of 09H17N7Yu steel turning at the expense of creating the procedure allowing the diagnostics of an engineering cutting system state on the results of cutting force control, inverse problem solution, that is, cutting force control according to the analysis results of system state diagnostics, the optimization of cutting mode parameters to ensure the required values of a cutting force, on the basis of the analysis results of a cutting force the tool materials and tool geometry should be recommended for cutter wear-resistance increase, the prediction of tool life at the expense of designing new tool materials and tool geometry for new conditions of their operation. \u0000There are presented recommendations to ensure a correct choice of carbide cutting inserts quality for the specified conditions of their operation. On the investigation results there are obtained conclusions: the most promising for special stainless steel 09H17N7Yu turning were tool materials: TC8+TiCN(mkm) + (TiAl)N(3mkm) + Al2O3(5mkm) + TiC(5mkm); TC8+Al2O3(2mkm) + (Ti)CN(5mkm) + (TiAl)N(3mkm) + TiN(3mkm); TC8 + (TiAl)N(3mkm) + Al2O3(3mkm) + (TiAl)N(3mkm) + Al2O3(3mkm); it is defined that at cutting mode forcing (cutting speed 60m/min, depth 2.5mm) or at turning titanium alloy TT-22 more complex in machining the mentioned tool materials met the demands made, that is, real insert life varied from the designed one not considerably (in the first case – 7% maximum, in the second one – 14%), that is the most acceptable. Work novelty: there is offered and substantiated a procedure for cutting force constituents use on the basis of simulation for the choice or design of tool material for turning in different conditions of tool operation.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85530697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MODELING OF CONTROL OF SPEED CONTROL DRIVE AND SLEW MECHANISM DRIVE OF HIGH-SPEED CATERPILLAR VEHICLE WITH BORDER GEARBOX","authors":"Sergey Horoshilov, S. Kondakov, O. Pavlovskaya","doi":"10.30987/1999-8775-2020-12-57-65","DOIUrl":"https://doi.org/10.30987/1999-8775-2020-12-57-65","url":null,"abstract":"The relevance of the topic of investigation is connected with the current trends in gearbox automation and request to lighten slew control of caterpillar vehicles. The purpose set can’t be achieved only in a physical modeling of a drive: the problem is too multiversion and a physical modeling does not guarantee an optimum solution. \u0000The scientific novelty of the investigation consists in the authors’ creation of simulator of gearbox drive and slew mechanism drive consisting of an electromotor, a planetary reducer, a crank mechanism, a hydraulic distributor and hydro-cylinder. \u0000As a consequence, there is realized a parametric investigation possibility of drive numerous parameter impact upon its performance characteristics. By means of the mathematical modeling the drive parameters ensuring the fulfillment of the requirements specification are substantiated. \u0000In the second part of the paper there are shown modeling results of caterpillar vehicle acceleration in a low and the fourth gears and a slew at a speed of 5 m/sec. The result comparison of mathematical modeling and experimental investigations is carried out. The data of experiments, in which took part the authors of the paper, confirm completely the adequacy of the simulator developed. In such a way, the simulator of caterpillar vehicle motion is supplemented with the reliable model of a gearbox drive and a slew mechanism drive in machinery with the border gearboxes. The paper material is used in the design of a similar drive of a new machine.","PeriodicalId":9358,"journal":{"name":"Bulletin of Bryansk state technical university","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83604521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}