Pub Date : 2023-06-30DOI: 10.32523/2616-7263-2023-143-2-156-166
A. Zhandarbekova, M. Arpabekov, K. Murzabekova
To date, traffic congestion has become one of the most urgent problems of traffic control on the road network of Astana. For many streets (avenues) of the city, the occurrence of systematic traffic jams is becoming characteristic. The increase in traffic congestion, high density and traffic intensity of vehicles reduce the efficiency of the road network, as a result, have an impact on the growth in the number of traffic accidents.It is especially acute in the nodal points (crossroads) of the road network. Here, transport delays increase, queues and congestion are formed, which causes a decrease in the speed of communication, unjustified excessive fuel consumption and increased wear of vehicle components and assemblies.In the context of a fund shortage in the city budget, one of the relevant ways to organize traffic is to increase the efficiency of traffic management.This article discusses the issues of improving the efficiency of managing a traffic light object at the intersection of Kabanbai Batyr and Uly Dala in Astana, in order to reduce traffic delays and ensure the best distribution of traffic flows.Conclusion: The results of field observations were obtained to determine the intensity of traffic during peak hours, the justification was given for adjusting the phase-by-phase passing scheme and the operation mode of the traffic light object at the intersection of Kabanbay Batyr and Uly Dala avenues, which will make it possible to identify a left turn with a change in the structure of the traffic light control cycle ensuring the best distribution of traffic flows.
{"title":"Issues of increasing the traffic management efficiency in the transport hubs of the city of Astana","authors":"A. Zhandarbekova, M. Arpabekov, K. Murzabekova","doi":"10.32523/2616-7263-2023-143-2-156-166","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-156-166","url":null,"abstract":"To date, traffic congestion has become one of the most urgent problems of traffic control on the road network of Astana. For many streets (avenues) of the city, the occurrence of systematic traffic jams is becoming characteristic. The increase in traffic congestion, high density and traffic intensity of vehicles reduce the efficiency of the road network, as a result, have an impact on the growth in the number of traffic accidents.It is especially acute in the nodal points (crossroads) of the road network. Here, transport delays increase, queues and congestion are formed, which causes a decrease in the speed of communication, unjustified excessive fuel consumption and increased wear of vehicle components and assemblies.In the context of a fund shortage in the city budget, one of the relevant ways to organize traffic is to increase the efficiency of traffic management.This article discusses the issues of improving the efficiency of managing a traffic light object at the intersection of Kabanbai Batyr and Uly Dala in Astana, in order to reduce traffic delays and ensure the best distribution of traffic flows.Conclusion: The results of field observations were obtained to determine the intensity of traffic during peak hours, the justification was given for adjusting the phase-by-phase passing scheme and the operation mode of the traffic light object at the intersection of Kabanbay Batyr and Uly Dala avenues, which will make it possible to identify a left turn with a change in the structure of the traffic light control cycle ensuring the best distribution of traffic flows.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130982241","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 : 2023-06-30DOI: 10.32523/2616-7263-2023-143-2-248-259
U. Аkishev, B. Issakulov, M. Imangazin, B. Sarsenbayev, J. Dhanya
The article deals with the issues of injury research at the enterprises of the electric power industry of the CIS countries and Kazakhstan. The study of the causes of injuries and ways to solve them at enterprises and industries of the mining, oil-gas and construction sectors has attracted a lot of attention of researchers in recent years and the study of this issue is also relevant in the western regions of Kazakhstan.The methodological basis of the study was the modern provisions of the theory and practice on occupational safety and health, injuries at enterprises and industries of the mining, oil and gas and construction sectors, as well as at enterprises of the electric power industry of Kazakhstan.According to the results of the study, it was also determined that the most common cause of accidents is a violation of safety and labor protection rules, unsatisfactory organization of work production. The study of the circumstances of accidents and the identification of their causes makes it possible to develop preventive measures that prevent the recurrence of emergencies. The obtained results of the study can be used at the enterprises of the electric power industry of the CIS countries and Kazakhstan.
{"title":"Improvement of methods for analyzing and forecasting industrial injuries in the electric workshop of the Don Mining and Processing Plant of the Republic of Kazakhstan","authors":"U. Аkishev, B. Issakulov, M. Imangazin, B. Sarsenbayev, J. Dhanya","doi":"10.32523/2616-7263-2023-143-2-248-259","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-248-259","url":null,"abstract":"The article deals with the issues of injury research at the enterprises of the electric power industry of the CIS countries and Kazakhstan. The study of the causes of injuries and ways to solve them at enterprises and industries of the mining, oil-gas and construction sectors has attracted a lot of attention of researchers in recent years and the study of this issue is also relevant in the western regions of Kazakhstan.The methodological basis of the study was the modern provisions of the theory and practice on occupational safety and health, injuries at enterprises and industries of the mining, oil and gas and construction sectors, as well as at enterprises of the electric power industry of Kazakhstan.According to the results of the study, it was also determined that the most common cause of accidents is a violation of safety and labor protection rules, unsatisfactory organization of work production. The study of the circumstances of accidents and the identification of their causes makes it possible to develop preventive measures that prevent the recurrence of emergencies. The obtained results of the study can be used at the enterprises of the electric power industry of the CIS countries and Kazakhstan.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114341934","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 : 2023-06-30DOI: 10.32523/2616-7263-2023-143-2-204-214
O. Zharkevich, T. Nikonova, L. Gierz, A. Berg, Alton A. Berg
The article presents the main design and technological features of gear pumps with a description of the contacts of the gear wheels during their interaction and manufacturing accuracy. The increase in contacts in the interdental space reduces the pulsation by 75%, the noise level by 5 decibels. The use of helical gears increases the efficiency of gear pumps and reduces pulsation. External gear pump with axial compensation with high precision and high quality materials resistant to fatigue. Internal gear pumps have a compact body and are less noisy. In practice, external gear pumps are most commonly used due to their simple design and low cost. The gear pump housing is subject to wear due to high pressure. During operation of the pump, uneven stresses occur, which leads to fatigue loads on the shaft in one direction. Additional pulsation entails oscillations of the structure. The gear pump’s own vibrations contribute to its failure, especially if the rotation speed is 100,000 cycles. During the operation of a gear pump, noise occurs that can be dampened with silencers or dampers, which increases the price of the pump. The interdental spaces of a gear pump are prone to cavitation during sudden pressure surges, which increases wear. To eliminate wear, pulsation, vibration, noise, a new design of the gear pump is proposed using various types of oils and methods for correcting the shape of the teeth.
{"title":"Analysis of design and technological features of gear pumps","authors":"O. Zharkevich, T. Nikonova, L. Gierz, A. Berg, Alton A. Berg","doi":"10.32523/2616-7263-2023-143-2-204-214","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-204-214","url":null,"abstract":"The article presents the main design and technological features of gear pumps with a description of the contacts of the gear wheels during their interaction and manufacturing accuracy. The increase in contacts in the interdental space reduces the pulsation by 75%, the noise level by 5 decibels. The use of helical gears increases the efficiency of gear pumps and reduces pulsation. External gear pump with axial compensation with high precision and high quality materials resistant to fatigue. Internal gear pumps have a compact body and are less noisy. In practice, external gear pumps are most commonly used due to their simple design and low cost. The gear pump housing is subject to wear due to high pressure. During operation of the pump, uneven stresses occur, which leads to fatigue loads on the shaft in one direction. Additional pulsation entails oscillations of the structure. The gear pump’s own vibrations contribute to its failure, especially if the rotation speed is 100,000 cycles. During the operation of a gear pump, noise occurs that can be dampened with silencers or dampers, which increases the price of the pump. The interdental spaces of a gear pump are prone to cavitation during sudden pressure surges, which increases wear. To eliminate wear, pulsation, vibration, noise, a new design of the gear pump is proposed using various types of oils and methods for correcting the shape of the teeth.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121366103","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 : 2023-06-30DOI: 10.32523/2616-7263-2023-143-2-19-25
Z. Shakhmov, G. Tleulenova
The paper considers the testing of pile foundations for continuity at Atbasar pipeline facility. For testing monolithic concrete and reinforced concrete structures, a variety of the pit (pile integrity test) method is used – low-deformation dynamic tests. This is the most modern technique in the world practice of recent years. It allows you to check the continuity of all types of monolithic concrete and reinforced concrete structures, including concrete (reinforced concrete) piles, to identify defects in them. Based on the obtained pile data, as a result of testing for the continuity of foundations, the number of non-defective piles and defective piles are reflected, and solutions are proposed to ensure the reliability and safety of the pipeline operation. A total of 10 bored piles, which were located in 4 separately standing foundations, were investigated in the work. The results showed that 3 piles could have defects in the form of cracks or narrowing of the cross-section of the bored piles.
{"title":"Investigation of boring pile integrity of road systems in engineering-geological condition of Kazakhstan","authors":"Z. Shakhmov, G. Tleulenova","doi":"10.32523/2616-7263-2023-143-2-19-25","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-19-25","url":null,"abstract":"The paper considers the testing of pile foundations for continuity at Atbasar pipeline facility. For testing monolithic concrete and reinforced concrete structures, a variety of the pit (pile integrity test) method is used – low-deformation dynamic tests. This is the most modern technique in the world practice of recent years. It allows you to check the continuity of all types of monolithic concrete and reinforced concrete structures, including concrete (reinforced concrete) piles, to identify defects in them. Based on the obtained pile data, as a result of testing for the continuity of foundations, the number of non-defective piles and defective piles are reflected, and solutions are proposed to ensure the reliability and safety of the pipeline operation. A total of 10 bored piles, which were located in 4 separately standing foundations, were investigated in the work. The results showed that 3 piles could have defects in the form of cracks or narrowing of the cross-section of the bored piles.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124954319","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}
In this article, methods of voice recognition were studied for the development of an intelligent virtual consultant, which plays an important role as an auxiliary tool when working with business process information systems, or rather with an ERP system. This study is intended to describe an intelligent virtual consultant in assessing the usefulness and effectiveness of using real functions in a business process modeling software system for enterprise resource planning (ERP). An intelligent virtual consultant is integrated with a Web-ERP prototype. In this study, natural language processing (NLP) was based using Levenberg Marquardt (LM) and Broyden-Fletcher Goldwarb-Shanno (BFGS) methods with the Mel kepstral frequency coefficients algorithm. A comparative analysis of these methods was also carried out to determine the effectiveness of the methods used. The big advantage of this virtual consultant is the voice input of long text data fields when working in Web-ERP. This system is relevant, as it significantly expands the search for business workflows. The system allows you to convert speech into text by receiving information system (IS) instructions, which, in turn, are transmitted to an ontological database, where a query based on terms is executed to obtain a set of commands available for execution. The introduction of an intelligent virtual consultant not only expands the application’s capabilities for users through the system, but also allows users to interpret data using speech synthesis. This prototype will be used for further research on the integration of intelligent virtual consultant and data analysis.
{"title":"Voice recognition methods for the development of an intelligent virtual consultant","authors":"Даниэль Хюссон, Rocío Arteaga Sánchez, Madjid Fathi","doi":"10.32523/2616-7263-2023-143-2-104-117","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-104-117","url":null,"abstract":"In this article, methods of voice recognition were studied for the development of an intelligent virtual consultant, which plays an important role as an auxiliary tool when working with business process information systems, or rather with an ERP system. This study is intended to describe an intelligent virtual consultant in assessing the usefulness and effectiveness of using real functions in a business process modeling software system for enterprise resource planning (ERP). An intelligent virtual consultant is integrated with a Web-ERP prototype. In this study, natural language processing (NLP) was based using Levenberg Marquardt (LM) and Broyden-Fletcher Goldwarb-Shanno (BFGS) methods with the Mel kepstral frequency coefficients algorithm. A comparative analysis of these methods was also carried out to determine the effectiveness of the methods used. The big advantage of this virtual consultant is the voice input of long text data fields when working in Web-ERP. This system is relevant, as it significantly expands the search for business workflows. The system allows you to convert speech into text by receiving information system (IS) instructions, which, in turn, are transmitted to an ontological database, where a query based on terms is executed to obtain a set of commands available for execution. The introduction of an intelligent virtual consultant not only expands the application’s capabilities for users through the system, but also allows users to interpret data using speech synthesis. This prototype will be used for further research on the integration of intelligent virtual consultant and data analysis.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123010063","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 : 2023-06-30DOI: 10.32523/2616-7263-2022-141-4-98-104
B. Togizbayeva, A. Zabieva, A. Karazhanov, Zh. Alipbayev
During operation in transit, rails are exposed to the combined effects of various loads (power, temperature, atmospheric), under the influence of which complex and usually interrelated processes occur in the rail metal: plastic deformation of metal, the development of various types of irregularities on the surface of the rolling head. The occurrence of surface injuries and their development, the development of internal defects of contact fatigue origin. All this leads to significant changes in the service properties of the rails. The article discusses the causes of elastic stresses at the crack tip in an infinite plate during the movement of rolling stock. As a result of the conducted research, there were identified methods of repairing defects in the rail heads, which allowed raising the issue of continuing operation of rails with defects.
{"title":"Investigation of the mechanics of rail failure in the event of contact fatigue defects in cold conditions","authors":"B. Togizbayeva, A. Zabieva, A. Karazhanov, Zh. Alipbayev","doi":"10.32523/2616-7263-2022-141-4-98-104","DOIUrl":"https://doi.org/10.32523/2616-7263-2022-141-4-98-104","url":null,"abstract":"During operation in transit, rails are exposed to the combined effects of various loads (power, temperature, atmospheric), under the influence of which complex and usually interrelated processes occur in the rail metal: plastic deformation of metal, the development of various types of irregularities on the surface of the rolling head. The occurrence of surface injuries and their development, the development of internal defects of contact fatigue origin. All this leads to significant changes in the service properties of the rails. The article discusses the causes of elastic stresses at the crack tip in an infinite plate during the movement of rolling stock. As a result of the conducted research, there were identified methods of repairing defects in the rail heads, which allowed raising the issue of continuing operation of rails with defects.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129436317","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 : 2023-06-30DOI: 10.32523/2616-7263-2023-143-2-92-103
M. Nogaibekova
The article discusses the ways of formation and location of administrative buildings in the modern urban environment. The importance of the volume of the city administration in the structure of a modern large city, the creation of an attractive environment and the preservation of cultural values by synthesizing the latest techniques of architecture and urban planning and time-developed social attachments in urban space is noted.
{"title":"Architecture of administrative buildings in an urban environment","authors":"M. Nogaibekova","doi":"10.32523/2616-7263-2023-143-2-92-103","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-92-103","url":null,"abstract":"The article discusses the ways of formation and location of administrative buildings in the modern urban environment. The importance of the volume of the city administration in the structure of a modern large city, the creation of an attractive environment and the preservation of cultural values by synthesizing the latest techniques of architecture and urban planning and time-developed social attachments in urban space is noted.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121179251","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 : 2023-06-30DOI: 10.32523/2616-7263-2023-143-2-46-61
A. Aldungarova, I. Pidal, Sh. Zharassov, S. Anapyanova, G. Mamyrbekova, Yu. Yeremeyeva
This article discusses the importance of hydraulic structures, particularly dams, in Kazakhstan’s economy due to water scarcity in many regions. The article highlights the need for a comprehensive approach to the location and design of dams considering climate change and land use scenarios. The article also emphasizes the need to update the design parameters and characteristics of dams to consider changes in land use and climate. The Samarkand reservoir hydrosystem is used as an example to discuss the potential hazards of the new spillway and the need for technical upgrading. The article suggests that the development of an integrated GIS-based approach to survey works, location, and design of dams could improve the quality of design and survey works and lead to the modernization of design and operation of reservoirs. The study proposes the use of modern research methods, including space methods, to provide more flexible and safe management of river flow with consideration of environmental and economic interests. The article concludes that the comprehensive GIS-based methodology for the location and design of dams, considering potential changes in river flow characteristics and the impact of changes in land use and climatic scenarios, can improve efficiency and optimize the work of hydraulic engineers.
{"title":"Revisiting Kazakhstan’s Hydraulic Structures: A GIS-Based Approach to Dam Design and Allocation Considering Climate Change and Land Use Scenarios","authors":"A. Aldungarova, I. Pidal, Sh. Zharassov, S. Anapyanova, G. Mamyrbekova, Yu. Yeremeyeva","doi":"10.32523/2616-7263-2023-143-2-46-61","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-46-61","url":null,"abstract":"This article discusses the importance of hydraulic structures, particularly dams, in Kazakhstan’s economy due to water scarcity in many regions. The article highlights the need for a comprehensive approach to the location and design of dams considering climate change and land use scenarios. The article also emphasizes the need to update the design parameters and characteristics of dams to consider changes in land use and climate. The Samarkand reservoir hydrosystem is used as an example to discuss the potential hazards of the new spillway and the need for technical upgrading. The article suggests that the development of an integrated GIS-based approach to survey works, location, and design of dams could improve the quality of design and survey works and lead to the modernization of design and operation of reservoirs. The study proposes the use of modern research methods, including space methods, to provide more flexible and safe management of river flow with consideration of environmental and economic interests. The article concludes that the comprehensive GIS-based methodology for the location and design of dams, considering potential changes in river flow characteristics and the impact of changes in land use and climatic scenarios, can improve efficiency and optimize the work of hydraulic engineers.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128802949","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 : 2023-06-30DOI: 10.32523/2616-7263-2023-143-2-237-247
A. Baidullayeva, A. Amanbek, A. Abdrakhmanov, K. Sherov, G. Kalenov, B. Orazaliyev
A lower ambient temperature leads to a deterioration in some engine characteristics, to a decrease in the durability of parts. Therefore, the main relevance of research work: the design of a heat accumulator by methods of storing thermal energy, the use of heat in the production cycle, the selection of the necessary effective materials and its improvement are relevant. From this point of view, by reducing the cost of operating the unit and preparing engines, an increase in vehicle performance and vehicle engine performance has been achieved. In this work, the amount of heat used by the heat accumulator to heat the engine was determined by the amount of heat consumed by the heat accumulator into the environment, the thermal power released into the environment, the amount of heat consumed by the heat accumulator into the environment when the engine warms up.
{"title":"Theoretical study of the working process of thermal accumulators facilitating the start of vehicle engines","authors":"A. Baidullayeva, A. Amanbek, A. Abdrakhmanov, K. Sherov, G. Kalenov, B. Orazaliyev","doi":"10.32523/2616-7263-2023-143-2-237-247","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-237-247","url":null,"abstract":"A lower ambient temperature leads to a deterioration in some engine characteristics, to a decrease in the durability of parts. Therefore, the main relevance of research work: the design of a heat accumulator by methods of storing thermal energy, the use of heat in the production cycle, the selection of the necessary effective materials and its improvement are relevant. From this point of view, by reducing the cost of operating the unit and preparing engines, an increase in vehicle performance and vehicle engine performance has been achieved. In this work, the amount of heat used by the heat accumulator to heat the engine was determined by the amount of heat consumed by the heat accumulator into the environment, the thermal power released into the environment, the amount of heat consumed by the heat accumulator into the environment when the engine warms up.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116914497","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 : 2023-06-30DOI: 10.32523/2616-7263-2023-143-2-177-192
M. Isametova, G. Abilezova, A. Duisengali, A. Tursynbayeva
The article presents the results of the use of rapid prototyping technology when modifying the impeller of a centrifugal pump in order to increase efficiency. As a result of the implementation of the technology, the influence of parameters such as the printing speed of the main layers, the printing speed of the current layers, the thickness of the layers on the geometric accuracy of printed products was studied. According to the results of experiments, it was revealed the effect of the feed rate on the OZ axis, an increase in speed will lead to lower surface quality, higher roughness. The distance between the layers is 0,15 mm/s, getting a roughness of Ra 6,3 microns, and in the right case we used a distance of 0,05 mm/s between the layers, getting a roughness of Ra1,6 microns. The article presents the results of the analysis of the effect of exposure time and exposure time in the UV chamber on the hardness of printed products. The article presents a method for determining and compensating the geometry of prototypes based on reverse engineering technology based on the use of an optical scanner. The tests of a centrifugal pump with a prototype of a modified wheel confirm the need for such innovations as rapid prototyping to shorten the design cycle of new products, as well as reduce the cost of their development.
{"title":"Application of rapid prototyping technology in pump engineering","authors":"M. Isametova, G. Abilezova, A. Duisengali, A. Tursynbayeva","doi":"10.32523/2616-7263-2023-143-2-177-192","DOIUrl":"https://doi.org/10.32523/2616-7263-2023-143-2-177-192","url":null,"abstract":"The article presents the results of the use of rapid prototyping technology when modifying the impeller of a centrifugal pump in order to increase efficiency. As a result of the implementation of the technology, the influence of parameters such as the printing speed of the main layers, the printing speed of the current layers, the thickness of the layers on the geometric accuracy of printed products was studied. According to the results of experiments, it was revealed the effect of the feed rate on the OZ axis, an increase in speed will lead to lower surface quality, higher roughness. The distance between the layers is 0,15 mm/s, getting a roughness of Ra 6,3 microns, and in the right case we used a distance of 0,05 mm/s between the layers, getting a roughness of Ra1,6 microns. The article presents the results of the analysis of the effect of exposure time and exposure time in the UV chamber on the hardness of printed products. The article presents a method for determining and compensating the geometry of prototypes based on reverse engineering technology based on the use of an optical scanner. The tests of a centrifugal pump with a prototype of a modified wheel confirm the need for such innovations as rapid prototyping to shorten the design cycle of new products, as well as reduce the cost of their development.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116854034","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：