Pub Date : 2023-09-29DOI: 10.34031/2071-7318-2023-8-12-67-82
V. Spiridonov
A cross-section of modern evaluation scales of the spatial organization of regional and urban systems is presented, focused on ensuring sustainable, information technology, architectural and urban development of the living environment of people. Theoretical models of unified indexing of the territorial and spatial organization of regions are proposed, corresponding to the current regulatory framework and priority scientific research in the field of criteria of spatial development of regions and their parts, as well as a table of correlation of differences in the conditions of spatial development of regions. The task of "developing the scientific foundations and methodology of the human habitat quality assessment system", including at the regional level, is included in the List of priority areas for the development of applied sciences and exploratory research of the RAASN and the Ministry of Construction of Russia. The methodological basis of the research is the principles of a systematic approach to urban planning, corresponding to the laws of goal-setting, construction and development (implementation) of complex systems. The practical significance of the research lies in the use of the main results of the work in the urban planning support of the spatial development strategy of Russia in terms of the application of its provisions in the preparation of regulatory requirements for urban planning documentation in the field of spatial and territorial planning of the development of regions and agglomeration forms of settlement; in the educational process of preparation in the areas of "Architecture" and "Urban Planning".
{"title":"INDICATORS OF TERRITORIAL AND SPATIAL REGIONAL DEVELOPMENT","authors":"V. Spiridonov","doi":"10.34031/2071-7318-2023-8-12-67-82","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-12-67-82","url":null,"abstract":"A cross-section of modern evaluation scales of the spatial organization of regional and urban systems is presented, focused on ensuring sustainable, information technology, architectural and urban development of the living environment of people. Theoretical models of unified indexing of the territorial and spatial organization of regions are proposed, corresponding to the current regulatory framework and priority scientific research in the field of criteria of spatial development of regions and their parts, as well as a table of correlation of differences in the conditions of spatial development of regions. The task of \"developing the scientific foundations and methodology of the human habitat quality assessment system\", including at the regional level, is included in the List of priority areas for the development of applied sciences and exploratory research of the RAASN and the Ministry of Construction of Russia. The methodological basis of the research is the principles of a systematic approach to urban planning, corresponding to the laws of goal-setting, construction and development (implementation) of complex systems. The practical significance of the research lies in the use of the main results of the work in the urban planning support of the spatial development strategy of Russia in terms of the application of its provisions in the preparation of regulatory requirements for urban planning documentation in the field of spatial and territorial planning of the development of regions and agglomeration forms of settlement; in the educational process of preparation in the areas of \"Architecture\" and \"Urban Planning\".","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139334336","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-46-53
A. Mavlyuberdinov, R. Bogdanov, L. Suleymanova
This article discusses issues related to the overhaul of large-panel residential buildings. The authors pay attention to a key aspect of this process, namely the repair of the joints of wall panels, as well as methods to identify places where the tightness of the seams in panel houses is broken. One of the important stages of the study is thermal imaging scanning, which allows you to accurately determine areas with the greatest heat loss and identify problem areas that require immediate intervention. The article also provides a brief description of the different types of sealants and their applications in the context of wall joint repairs. This is significant because choosing the right sealants and applying them correctly can greatly improve the effectiveness and longevity of a repair. The authors of the study emphasize not only the importance of proper repair of wall panel joints, but also the need to comply with building maintenance requirements and timely major repairs using high-quality materials. This is key to ensuring the durability of wall panel joints. Effective major renovations help create a favorable indoor microclimate and reduce energy costs, which is important not only from the point of view of improving living conditions, but also from an economic point of view in the modern construction industry.
{"title":"ON THE ISSUE OF SOLVING THE PROBLEM OF OPERATION OF PANEL BUILDINGS","authors":"A. Mavlyuberdinov, R. Bogdanov, L. Suleymanova","doi":"10.34031/2071-7318-2023-8-11-46-53","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-46-53","url":null,"abstract":"This article discusses issues related to the overhaul of large-panel residential buildings. The authors pay attention to a key aspect of this process, namely the repair of the joints of wall panels, as well as methods to identify places where the tightness of the seams in panel houses is broken. One of the important stages of the study is thermal imaging scanning, which allows you to accurately determine areas with the greatest heat loss and identify problem areas that require immediate intervention. The article also provides a brief description of the different types of sealants and their applications in the context of wall joint repairs. This is significant because choosing the right sealants and applying them correctly can greatly improve the effectiveness and longevity of a repair. The authors of the study emphasize not only the importance of proper repair of wall panel joints, but also the need to comply with building maintenance requirements and timely major repairs using high-quality materials. This is key to ensuring the durability of wall panel joints. Effective major renovations help create a favorable indoor microclimate and reduce energy costs, which is important not only from the point of view of improving living conditions, but also from an economic point of view in the modern construction industry.","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139337961","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-64-72
N. Sokolova, V. Uhabin
The historical center of the city is the main keeper of the cultural code of the city, since the most important historical and cultural objects are concentrated within its borders, the historical environment is preserved. The appearance of high-rise buildings has become a familiar result of the process of urban reconstruction of historical city centers. As a result, there is a compositional destruction of the historical environment, distortion and spatial destruction of the established historical ensembles. The city of Penza is no exception: dozens of historical buildings have been lost, and their place has been taken by buildings of a larger scale and height that destroy the historical environment. The problem of regulating the height of new buildings in the historical environment of the city of Penza has acquired the most acute character and requires its solution. The purpose of the study is to develop a height regulation for the historical center of Penza as an approbation of the previously proposed "comprehensive methodology for identifying the boundaries of the height of a new development in the historical center of a large city based on landscape-visual analysis." The research is based on the study of the problems of regulating the height of buildings in historical city centers in Russia and abroad, the analysis of scientific works and the legislative framework of the Russian Federation and the city of Penza in the field of height regulation, the systematization of domestic and foreign experience in the formation and regulation of height restrictions in historical city centers, a full-scale survey of the city, retrospective and landscape-visual analysis, graphical modeling. As a result of the conducted research, positive results were obtained: the proposed methodology, as a result of testing, confirmed its effectiveness, made it possible to identify landscape and visual features of the historical center of Penza and to form height restrictions within the boundaries of the historical center of the city, the structure and content of the high-rise regulations for the development of the historical center of the city were formed, options for integrating the high-rise regulations into the urban planning documentation of the municipal level were considered.
{"title":"IDENTIFICATION OF THE BOUNDARIES OF THE HEIGHT OF THE NEW DEVELOPMENT IN THE HISTORICAL CENTER OF PENZA","authors":"N. Sokolova, V. Uhabin","doi":"10.34031/2071-7318-2023-8-11-64-72","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-64-72","url":null,"abstract":"The historical center of the city is the main keeper of the cultural code of the city, since the most important historical and cultural objects are concentrated within its borders, the historical environment is preserved. The appearance of high-rise buildings has become a familiar result of the process of urban reconstruction of historical city centers. As a result, there is a compositional destruction of the historical environment, distortion and spatial destruction of the established historical ensembles. The city of Penza is no exception: dozens of historical buildings have been lost, and their place has been taken by buildings of a larger scale and height that destroy the historical environment. The problem of regulating the height of new buildings in the historical environment of the city of Penza has acquired the most acute character and requires its solution. The purpose of the study is to develop a height regulation for the historical center of Penza as an approbation of the previously proposed \"comprehensive methodology for identifying the boundaries of the height of a new development in the historical center of a large city based on landscape-visual analysis.\" The research is based on the study of the problems of regulating the height of buildings in historical city centers in Russia and abroad, the analysis of scientific works and the legislative framework of the Russian Federation and the city of Penza in the field of height regulation, the systematization of domestic and foreign experience in the formation and regulation of height restrictions in historical city centers, a full-scale survey of the city, retrospective and landscape-visual analysis, graphical modeling. As a result of the conducted research, positive results were obtained: the proposed methodology, as a result of testing, confirmed its effectiveness, made it possible to identify landscape and visual features of the historical center of Penza and to form height restrictions within the boundaries of the historical center of the city, the structure and content of the high-rise regulations for the development of the historical center of the city were formed, options for integrating the high-rise regulations into the urban planning documentation of the municipal level were considered.","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139338001","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-54-63
L. Kuschev, V. Uvarov, I. Kryukov, D. Brezhnev
In the Russian Federation, housing and communal services are one of the sectors of the national economy. To provide consumers with heat and maintain a given temperature in conditions of constant heating and hot water supply of residential and public buildings, it is necessary to use heat exchangers. When solving engineering problems aimed at improving the design features of heat exchangers, it is necessary first of all to conduct a study of the thermal characteristics of the equipment used. This will allow you to identify equipment shortcomings and offer original lighting or recommendations for improving some elements. This is especially important when developing heat exchangers used in the housing and communal services of the fuel and energy complex of the Russian Federation. In this work, the thermal characteristics of a condenser heat exchanger with a spiral coil, controlled temperature parameters at the outlet of the heating and heated circuits were studied, the heat transfer coefficient K, [W/(m2×°C)], was calculated at various operating temperature conditions, and an algorithm for carrying out a natural experiment in a laboratory setup with a step-by-step description of the actions performed. The conclusions analyzed the results of experimental work on the apparatus, and also formulated proposals for the creation of a locally produced heat exchanger
在俄罗斯联邦，住房和社区服务是国民经济的一个部门。为了向用户提供热量，并在住宅和公共建筑持续供暖和供应热水的条件下保持一定的温度，必须使用热交换器。在解决旨在改进热交换器设计特性的工程问题时，首先必须对所用设备的热特性进行研究。这样可以找出设备的不足之处，并提出改进某些元素的原始照明或建议。在开发用于俄罗斯联邦燃料和能源综合体的住房和社区服务的热交换器时，这一点尤为重要。在这项工作中，研究了带有螺旋盘管的冷凝器热交换器的热特性、加热和被加热回路出口处的受控温度参数，计算了各种工作温度条件下的传热系数 K [W/(m2×°C)]，以及在实验室设置中进行自然实验的算法，并对所执行的操作进行了逐步描述。结论分析了该设备的实验结果，还为创建本地生产的热交换器提出了建议
{"title":"EXPERIMENTAL STUDY OF HEAT TECHNICAL PARAMETERS OF A SHELL AND TUBE HEAT EXCHANGER WITH A SPIRAL COIL","authors":"L. Kuschev, V. Uvarov, I. Kryukov, D. Brezhnev","doi":"10.34031/2071-7318-2023-8-11-54-63","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-54-63","url":null,"abstract":"In the Russian Federation, housing and communal services are one of the sectors of the national economy. To provide consumers with heat and maintain a given temperature in conditions of constant heating and hot water supply of residential and public buildings, it is necessary to use heat exchangers. When solving engineering problems aimed at improving the design features of heat exchangers, it is necessary first of all to conduct a study of the thermal characteristics of the equipment used. This will allow you to identify equipment shortcomings and offer original lighting or recommendations for improving some elements. This is especially important when developing heat exchangers used in the housing and communal services of the fuel and energy complex of the Russian Federation. In this work, the thermal characteristics of a condenser heat exchanger with a spiral coil, controlled temperature parameters at the outlet of the heating and heated circuits were studied, the heat transfer coefficient K, [W/(m2×°C)], was calculated at various operating temperature conditions, and an algorithm for carrying out a natural experiment in a laboratory setup with a step-by-step description of the actions performed. The conclusions analyzed the results of experimental work on the apparatus, and also formulated proposals for the creation of a locally produced heat exchanger","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139338103","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-73-81
A. Pavlov, A. Bergman
The article examines the compositional features and methods of shaping the architecture of the 1920s – 1930s using the example of the Leningrad architectural heritage of constructivism. We are talking about the following objects: Levashovsky Bakery Plant and the Moscow District Council, the Kirov District Council and the Palace of Culture named after Gaza I.I., the Palace of Culture named after S.M. Kirov and the Ligovsky Bath and Laundry Plant. In the study, the objects of Leningrad constructivism were analyzed comprehensively: historical information was given, a situational plan was drawn up, archival photographs were presented, and a compositional analysis was carried out, including the author's graphics, illustrating the process of shaping each object. The materials collected by the authors as a result of the study are classified and grouped into a summary table of techniques for shaping the architecture of Leningrad constructivism, demonstrating the similarities and differences of characteristic architectural solutions. The data obtained as a result of the analysis illustrate the compositional features of the objects of the Leningrad avant-garde and reveal the main techniques of shaping characteristic of the architecture of that period. As a result of the study, three main types of volumetric-spatial compositions were identified, characteristic of the architectural solutions of Leningrad avant-garde objects: type 1 - a combination of a cylinder and a parallelepiped, type 2 - buildings with semi-cylindrical projections, type 3 - buildings with a symmetrical entrance solution.
{"title":"COMPOSITIONAL FEATURES AND FORM-CREATIVE BASIS OF LENINGRAD CONSTRUCTIVISM ARCHITECTURE","authors":"A. Pavlov, A. Bergman","doi":"10.34031/2071-7318-2023-8-11-73-81","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-73-81","url":null,"abstract":"The article examines the compositional features and methods of shaping the architecture of the 1920s – 1930s using the example of the Leningrad architectural heritage of constructivism. We are talking about the following objects: Levashovsky Bakery Plant and the Moscow District Council, the Kirov District Council and the Palace of Culture named after Gaza I.I., the Palace of Culture named after S.M. Kirov and the Ligovsky Bath and Laundry Plant. In the study, the objects of Leningrad constructivism were analyzed comprehensively: historical information was given, a situational plan was drawn up, archival photographs were presented, and a compositional analysis was carried out, including the author's graphics, illustrating the process of shaping each object. The materials collected by the authors as a result of the study are classified and grouped into a summary table of techniques for shaping the architecture of Leningrad constructivism, demonstrating the similarities and differences of characteristic architectural solutions. The data obtained as a result of the analysis illustrate the compositional features of the objects of the Leningrad avant-garde and reveal the main techniques of shaping characteristic of the architecture of that period. As a result of the study, three main types of volumetric-spatial compositions were identified, characteristic of the architectural solutions of Leningrad avant-garde objects: type 1 - a combination of a cylinder and a parallelepiped, type 2 - buildings with semi-cylindrical projections, type 3 - buildings with a symmetrical entrance solution.","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139338124","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-27-36
Yu. Markina
The lower belt of the crane secondary truss, along which the crane moves, is made of a thin-walled box profile. The largest local concentrated crane forces applied with eccentricity to the lower belt of truss made of thin-walled welded box cause its restrained torsion. The calculation method of the crane secondary truss does not consider the inclusion in the work of the lower belt for torsion and horizontal bending of the webs. A beam with a span equal to the span of the crane secondary truss is taken as the design scheme of the lower belt along which the crane moves. In fact, the work of the belt during torsion is different from the work of the beam. The objectives of the work are to assess the impact on the operation of the lower belt during torsion of the webs and the upper belt and to clarify the methodology for calculating the lower belt. The study of the influence of webs on the angular malleability and torque of the lower belt has been carried out. Various ratios of the stiffness of the belt and the entire crane secondary truss are considered. The design scheme of the belt for the calculation of torsion is proposed – a beam angular elastic supports at the points of junction of the webs. The formula for determining the stiffness of elastic supports has been adopted. The error in determining the bending moments in the lower belt according to the proposed method relative to the results of numerical calculation of the rod design scheme of the entire crane secondary truss does not exceed 2%. The stresses in the lower belt, considering the torsion component, are analytically determined. The results were verified numerically using shell finite elements and a full-scale examination.
{"title":"TORSION OF LOWER BELT OF CRANE SECONDARY TRUSS","authors":"Yu. Markina","doi":"10.34031/2071-7318-2023-8-11-27-36","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-27-36","url":null,"abstract":"The lower belt of the crane secondary truss, along which the crane moves, is made of a thin-walled box profile. The largest local concentrated crane forces applied with eccentricity to the lower belt of truss made of thin-walled welded box cause its restrained torsion. The calculation method of the crane secondary truss does not consider the inclusion in the work of the lower belt for torsion and horizontal bending of the webs. A beam with a span equal to the span of the crane secondary truss is taken as the design scheme of the lower belt along which the crane moves. In fact, the work of the belt during torsion is different from the work of the beam. The objectives of the work are to assess the impact on the operation of the lower belt during torsion of the webs and the upper belt and to clarify the methodology for calculating the lower belt. The study of the influence of webs on the angular malleability and torque of the lower belt has been carried out. Various ratios of the stiffness of the belt and the entire crane secondary truss are considered. The design scheme of the belt for the calculation of torsion is proposed – a beam angular elastic supports at the points of junction of the webs. The formula for determining the stiffness of elastic supports has been adopted. The error in determining the bending moments in the lower belt according to the proposed method relative to the results of numerical calculation of the rod design scheme of the entire crane secondary truss does not exceed 2%. The stresses in the lower belt, considering the torsion component, are analytically determined. The results were verified numerically using shell finite elements and a full-scale examination.","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139338036","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-82-92
A. Novosyolov, Yu. Dreer, I. Novoselova, Y. Vasina
The article discusses the possibility of using cryolite Na3AlF6, the main fluorine-containing compound of a man-made product of electrolytic aluminum production, as a mineralizing additive when burning clinker. A comparative assessment of the effectiveness of cryolite Na3AlF6, as a mineralizer, and calcium fluoride CaF2, a substance that has the most effective mineralizing effect, is provided. The influence of mineralizer additives on the processes of dissociation of calcium carbonate, assimilation of free calcium oxide with the formation of silicates, aluminates and calcium ferrites, liquid-phase sintering and clinker formation with the synthesis of basic clinker minerals is considered. The physical and chemical processes that occur when heating raw material mixtures without additives and with the addition of mineralizers – CaF2 and Na3AlF6 – to a clinker sintering temperature of 1450ºC are examined in detail. The dynamics of changes in the qualitative phase composition of firing products at various temperatures, ranging from 700ºC to the clinker sintering temperature of 1450ºC, as well as a quantitative characteristic of the intensity of formation of the main clinker minerals are presented. It has been determined that cryolite has a mineralizing effect and can be used as a mineralizer when burning clinker. The effectiveness of cryolite is comparable to the effectiveness of calcium fluoride, and the burning temperature of clinker can be reduced to 1400ºC
{"title":"STUDY OF THE MINERALIZING EFFECT OF CRYOLITE AND ITS INFLUENCE ON THE PROCESSES OF CLINKER FORMATION","authors":"A. Novosyolov, Yu. Dreer, I. Novoselova, Y. Vasina","doi":"10.34031/2071-7318-2023-8-11-82-92","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-82-92","url":null,"abstract":"The article discusses the possibility of using cryolite Na3AlF6, the main fluorine-containing compound of a man-made product of electrolytic aluminum production, as a mineralizing additive when burning clinker. A comparative assessment of the effectiveness of cryolite Na3AlF6, as a mineralizer, and calcium fluoride CaF2, a substance that has the most effective mineralizing effect, is provided. The influence of mineralizer additives on the processes of dissociation of calcium carbonate, assimilation of free calcium oxide with the formation of silicates, aluminates and calcium ferrites, liquid-phase sintering and clinker formation with the synthesis of basic clinker minerals is considered. The physical and chemical processes that occur when heating raw material mixtures without additives and with the addition of mineralizers – CaF2 and Na3AlF6 – to a clinker sintering temperature of 1450ºC are examined in detail. The dynamics of changes in the qualitative phase composition of firing products at various temperatures, ranging from 700ºC to the clinker sintering temperature of 1450ºC, as well as a quantitative characteristic of the intensity of formation of the main clinker minerals are presented. It has been determined that cryolite has a mineralizing effect and can be used as a mineralizer when burning clinker. The effectiveness of cryolite is comparable to the effectiveness of calcium fluoride, and the burning temperature of clinker can be reduced to 1400ºC","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139338051","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-18-26
M. Mokrova, S. Sardarova
The article discusses the results of research on the use of modifying additives in gypsum binder. Regulation of the structure and, therefore, the properties of gypsum stone can be carried out using small quantities of highly active additives that can effectively influence the formation of the structure of gypsum stone, and, consequently, its characteristics. Using functional modifying additives in small quantities, which practically do not affect the cost of the material, and using them to control the composition of gypsum binders, it is possible to obtain effective decorative and finishing gypsum products with improved characteristics. The work studied the effect of polyvinyl acetate additives together with synthetic polypropylene fiber on the properties of gypsum stone products. A comparison of the physical and mechanical characteristics of modified gypsum composites is presented, and the advantages of introducing fiber are revealed. By covering the pores and capillaries of gypsum stone with fiber fibers, the formation of shrinkage microcracks is significantly reduced, crack resistance increases, and strength characteristics increase. It has been established that modification of gypsum stone with polyvinyl acetate together with synthetic fibers helps to improve the physical and mechanical characteristics of gypsum stone. The developed compositions of decorative and finishing gypsum tiles using the additions of polyvinyl acetate and polypropylene fiber make it possible to obtain gypsum finishing materials products with improved characteristics, which demonstrates their increased efficiency as a modern finishing material and opens up broad prospects for use in housing and civil construction.
{"title":"INCREASING THE PERFORMANCE CHARACTERISTICS OF GYPSUM COMPOSITE FOR DECORATIVE PRODUCTS","authors":"M. Mokrova, S. Sardarova","doi":"10.34031/2071-7318-2023-8-11-18-26","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-18-26","url":null,"abstract":"The article discusses the results of research on the use of modifying additives in gypsum binder. Regulation of the structure and, therefore, the properties of gypsum stone can be carried out using small quantities of highly active additives that can effectively influence the formation of the structure of gypsum stone, and, consequently, its characteristics. Using functional modifying additives in small quantities, which practically do not affect the cost of the material, and using them to control the composition of gypsum binders, it is possible to obtain effective decorative and finishing gypsum products with improved characteristics. The work studied the effect of polyvinyl acetate additives together with synthetic polypropylene fiber on the properties of gypsum stone products. A comparison of the physical and mechanical characteristics of modified gypsum composites is presented, and the advantages of introducing fiber are revealed. By covering the pores and capillaries of gypsum stone with fiber fibers, the formation of shrinkage microcracks is significantly reduced, crack resistance increases, and strength characteristics increase. It has been established that modification of gypsum stone with polyvinyl acetate together with synthetic fibers helps to improve the physical and mechanical characteristics of gypsum stone. The developed compositions of decorative and finishing gypsum tiles using the additions of polyvinyl acetate and polypropylene fiber make it possible to obtain gypsum finishing materials products with improved characteristics, which demonstrates their increased efficiency as a modern finishing material and opens up broad prospects for use in housing and civil construction.","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139338150","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-93-102
S. Anciferov, A. Karachevceva, E. Sychyov, A. Litvishko
The presented article describes the technology of topological optimization. The main methods of topological optimization are also described: ESO/BESO; SIMP-method; ESO-Simp-method; Level-Set-method. Each of the methods has its advantages, but they have common disadvantages, namely: the problem of the "chessboard" and the dependence on grid partitioning. Topological optimization allows you to reduce the weight of the product, while maintaining the strength characteristics. Based on the product obtained after optimization, its production technologies were considered. These include traditional technologies (casting, stamping, milling, etc.) and additive manufacturing technologies. Software with topological optimization functionality was presented and described. These are mainly commercial CAD/CAE systems (OptiStruct, Simulia Tosca, ANSYS and MSC Nastran). The main industries that use the method of topological optimization are the aerospace industry, mechanical engineering, medicine, robotics and others. In this paper, we consider the process of reducing the weight of a robotic cell trolley using the SIMP (Solid Isotropic Material with Penalization) method, on which a robotic arm is attached. The functionality of the CAD/CAM/CAE-system NX from Siemens PLM Software was used for the topological optimization of the robotic cell trolley. Generalizing conclusions are made that topological optimization makes it possible to obtain geometric shapes of a product with a minimum mass while maintaining strength and rigidity.
{"title":"TOPOLOGICAL OPTIMIZATION OF DESIGN ELEMENTS OF A ROBOTIC CELL","authors":"S. Anciferov, A. Karachevceva, E. Sychyov, A. Litvishko","doi":"10.34031/2071-7318-2023-8-11-93-102","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-93-102","url":null,"abstract":"The presented article describes the technology of topological optimization. The main methods of topological optimization are also described: ESO/BESO; SIMP-method; ESO-Simp-method; Level-Set-method. Each of the methods has its advantages, but they have common disadvantages, namely: the problem of the \"chessboard\" and the dependence on grid partitioning. Topological optimization allows you to reduce the weight of the product, while maintaining the strength characteristics. Based on the product obtained after optimization, its production technologies were considered. These include traditional technologies (casting, stamping, milling, etc.) and additive manufacturing technologies. Software with topological optimization functionality was presented and described. These are mainly commercial CAD/CAE systems (OptiStruct, Simulia Tosca, ANSYS and MSC Nastran). The main industries that use the method of topological optimization are the aerospace industry, mechanical engineering, medicine, robotics and others. In this paper, we consider the process of reducing the weight of a robotic cell trolley using the SIMP (Solid Isotropic Material with Penalization) method, on which a robotic arm is attached. The functionality of the CAD/CAM/CAE-system NX from Siemens PLM Software was used for the topological optimization of the robotic cell trolley. Generalizing conclusions are made that topological optimization makes it possible to obtain geometric shapes of a product with a minimum mass while maintaining strength and rigidity.","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139337907","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}
Pub Date : 2023-09-21DOI: 10.34031/2071-7318-2023-8-11-103-112
V. Duganov, T. Duyun, K. Chuev, N. Arhipova, V. Kravchenko, Yu. Chueva
The present article describes the problem of disposing of worn-out tires, which arises during the operation of heavy-duty dump trucks in the mining and construction industries. Worn-out tires cannot be buried in landfills and must be disposed of in accordance with Russian legislation. However, at present, equipment for processing large-sized tires has a high cost and occupies a large area. These problems can be solved by the "Installation for Removing the Cable from the Side Part of the Tire during Utilization", which has the same technical and operational characteristics and smaller dimensions compared to analogues. This installation is an effective and economically advantageous solution to the problem of disposing of worn-out tires in the mining and construction industries. Its use will reduce the negative impact on the environment and save resources. To determine the main technological parameters of the installation, an industrial experiment was conducted on the "Hydraulic Puller of Rim Rings" equipment and smaller-sized tires, and a direct-proportional dependence was identified between the tire size and the force required to remove the rim ring.
{"title":"PROBLEMS OF RECYCLING LARGE-SIZED CAR TIRES","authors":"V. Duganov, T. Duyun, K. Chuev, N. Arhipova, V. Kravchenko, Yu. Chueva","doi":"10.34031/2071-7318-2023-8-11-103-112","DOIUrl":"https://doi.org/10.34031/2071-7318-2023-8-11-103-112","url":null,"abstract":"The present article describes the problem of disposing of worn-out tires, which arises during the operation of heavy-duty dump trucks in the mining and construction industries. Worn-out tires cannot be buried in landfills and must be disposed of in accordance with Russian legislation. However, at present, equipment for processing large-sized tires has a high cost and occupies a large area. These problems can be solved by the \"Installation for Removing the Cable from the Side Part of the Tire during Utilization\", which has the same technical and operational characteristics and smaller dimensions compared to analogues. This installation is an effective and economically advantageous solution to the problem of disposing of worn-out tires in the mining and construction industries. Its use will reduce the negative impact on the environment and save resources. To determine the main technological parameters of the installation, an industrial experiment was conducted on the \"Hydraulic Puller of Rim Rings\" equipment and smaller-sized tires, and a direct-proportional dependence was identified between the tire size and the force required to remove the rim ring.","PeriodicalId":9367,"journal":{"name":"Bulletin of Belgorod State Technological University named after. V. G. Shukhov","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139338131","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}
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