Issue 4 (50) 2024

TECHNOLOGY AND EQUIPMENT OF MECHANICAL
AND PHYSICAL AND TECHNICAL PROCESSING

 

   

     

     Sukhorukov, V. N. Design of technology for improving the quality of the surface layer under thermal action on the workpiece / V. N. Sukhorukov, V. V. Kuts, K. A. Milinchuk, E. V. Smolentsev // Voronezh Scientific and Technical Bulletin. - 2024. - Vol. 4, No. 4 (50). - P. 3-11. Access mode: gallery/3-11.pdf – DOI: 10.34220/2311-8873-2024-6-6..

      Annotation. The article presents the design of a technology for improving the quality of the surface layer under thermal action on the workpiece. A method is considered that allows achieving a high level of hardening without applying a coating layer to the surface. The results of studies on surface hardening without applying a layer of material are presented.

      Keywords: TECHNOLOGY, FORMING, SURFACE QUALITY, TOOL, HARDENING, STRUCTURE.

 

 

MECHANICAL ENGINEERING TECHNOLOGY

 

 

     Ryazantseva, E. A. Methods for producing small-diameter holes in the manufacture of filter elements for rocket engines / E. A. Ryazantseva, O. N. Kirillov, A. M. Kadyrmetov // Voronezh Scientific and Technical Bulletin. - 2024. - Vol. 4, No. 4 (50). - P. 12-19. Access mode: gallery/12-19.pdf - DOI: 10.34220/2311-8873-2024-12-19. 

     Annotation. Methods for producing holes in metal filters of various sizes are considered. The specifics of using electrical discharge machining and electron beam machining methods for drilling holes are disclosed. The ways of ensuring the quality of the surface layer of parts in the process of manufacturing filter elements of liquid rocket engines are presented. In accordance with the processing methods considered in the work, the roughness parameters of the manufactured holes on the imitation sample and the hydraulic characteristics of the filter element at a constant flow rate of the working medium were studied. 

     Keywords: ELECTRO-DISCHARGE MACHINING, FILTER ELEMENT, SMALL DIAMETER HOLES, ENGINE, ROUGHNESS. 

 

    Smolentsev, V. P. Status and development paths of combined methods for machining high-tech products / V. P. Smolentsev, A. A. Izvekov, I. G. Starodubtsev // Voronezh Scientific and Technical Bulletin. – 2024. – V. 4, No. 4 (50). – P. 20-30. Access mode: gallery/20-30.pdf – DOI: 10.34220/2311-8873-2024-20-30. 

    Annotation. The article considers the state of scientific technological research and promising ways of its application in the country's mechanical engineering. The results of research by domestic scientists in recent years are presented and areas of work for the subsequent period are outlined. The strengthening of scientific ties between scientists and manufacturers with the Russian Academy of Sciences in the field of development and application of combined processing methods is noted. The place of artificial intelligence (AI) and digital technologies in their application in the process of development and production of domestic technological equipment is determined. Priority areas for the use of combined processing methods in special machine tool building are shown. The areas of successful development of mechanical engineering in the country are substantiated, taking into account the achievements of the aerospace industry. Recommendations for designing process modes for combined processing of typical parts are given. The possibility of improving the quality of products by applying coatings with justification for the use of new working environments and the implementation of research results using the criteria of the theory of industrial manufacturability is substantiated. 

      Keywords: STATE, DEVELOPMENT, QUALITY, COMBINED PROCESSING METHODS, TECHNOLOGICAL COMPLEXES, COATINGS.

 

 

OPERATION OF AUTOMOBILE TRANSPORT

 

 

      Volkov, V. S. Influence of the characteristics of the center differential on the distribution of torques between the driving axles of an all-wheel drive vehicle / V. S. Volkov, E. G. Lebedev, E. A. Mitrokhin // Voronezh Scientific and Technical Bulletin. - 2024. - Vol. 4, No. 4 (50). - P. 31-40. Access mode: gallery/31-40.pdf – DOI: 10.34220/2311-8873-2024-31-40. 

      Annotation. The article examines the influence of the interaxle differential locking coefficient on the distribution of torques between the drive axles of a four-wheel drive vehicle and the resulting tangential reactions on the drive wheels. The influence of the deformation characteristics of elastic tires when driving over road irregularities is taken into account. 

      Keywords: DIFFERENTIAL, FOUR-WHEELD DRIVE, TORQUE, WHEELS, TANGENTIAL REACTIONS, TIRE.

 

      Tsarikov, A. A. Study of the severity indicators of consequences of road accidents on the example of the Sverdlovsk region / A. A. Tsarikov, D. G. Nevolin, I. G. Sorogin // Voronezh Scientific and Technical Bulletin. - 2024. - Vol. 4, No. 4 (50). - P. 41-52. Access mode: gallery/41-52.pdf - DOI: 10.34220/2311-8873-2024-41-52.

     Annotation. The article discusses the types of road traffic accidents that resulted in serious consequences. Based on the conducted research, measures are proposed that will improve road safety. 

   Keywords: ACCIDENT RATE, ROAD SAFETY, ROAD TRAFFIC ACCIDENT, SEVERITY OF CONSEQUENCES OF A ROAD TRAFFIC ACCIDENT.

 

      Barnovi, N. V. Influence of modern braking systems on the braking parameters of vehicles during accident reconstruction / N. V. Barnovi, V. S. Shavrina // Voronezh Scientific and Technical Bulletin. - 2024. - Vol. 4, No. 4 (50). - P. 53-63. Access mode: gallery/53-63.pdf – DOI: 10.34220/2311-8873-2024-53-63. 

     Annotation. The article notes the importance of the problem related to the number of accidents, as well as conducting a high-quality road examination, describes the methodology of the experiment, presents the results, and conducts a comparative analysis with standard values. During the study, it was decided to experimentally obtain the values ​​​​of steady-state deceleration on vehicles equipped with auxiliary braking systems and without them. Thus, thanks to the study, the influence of modern braking systems on the braking process of a vehicle was determined. 

       Keywords: ROAD ACCIDENT, BRAKING PARAMETERS, BRAKING SYSTEMS, STEADY-STATE DECELERATION.

 

   Makarova, I. V. Intelligent methods for improving the delivery system in the field of e-commerce / I. V. Makarova, A. D. Boyko, G. R. Mavlyautdinova // Voronezh Scientific and Technical Bulletin. - 2024. - Vol. 4, No. 4 (50). - P. 64-78. Access mode: gallery/64-78.pdf - DOI: 10.34220/2311-8873-2024-64-78.

      Annotation. Competition in the e-commerce system due to its rapid development forces companies to look for solutions to improve efficiency. The most important issue in this case is logistics operations, on which the satisfaction of customer requirements depends. The advent of intelligent technologies makes it possible to restructure the online order delivery system, making it more flexible and convenient. The article discusses one of the ways to solve this problem. Using the example of building a two-tier delivery system from an online store, it is shown that the proposed system will not only speed up the delivery process, but also reduce the load on the city's transport network both in terms of traffic and from an environmental point of view. Ultimately, the proposed delivery option will contribute to the implementation of the ESG concept. The proposed system uses simulation models that have proven themselves well for solving such problems. Various options for "last mile" courier deliveries are recommended. 

      Keywords: CITY LOGISTICS, "LAST MILE" DELIVERY, E-COMMERCE, SUSTAINABLE DEVELOPMENT, SIMULATION MODELING.

 

     Kulikov, A. V. Development of a model of a multimodal transport network of urban passenger transport of cities with a population of over one million using the example of Volgograd / A. V. Kulikov, L. B. Mirotin, A. A. Valkovskaya, A. A. Kulikov // Voronezh Scientific and Technical Bulletin. - 2024. - Vol. 4, No. 4 (50). - P. 79-93. Access mode: gallery/79-93.pdf - DOI: 10.34220/2311-8873-2024-79-93.

     Annotation. The article presents the stages of forming a model of a multimodal transport network of urban passenger transport of a city with a population of over one million. A method for determining the location of the optimal multimodal transport hub on the city's street and road network is proposed. The analysis of the population change in Volgograd was carried out, the location of the proposed multimodal transport hubs was determined by the administrative districts of the city. A multimodal model was built, which is a flat graph
with vertices in multimodal transport hubs and transport links, characterized by distances along the city's street and road network. 

    Keywords: TRANSPORT NETWORK, MULTIMODAL PASSENGER TRANSPORTATION, MODEL, CITIES WITH A MILLION POPULATION, TRANSPORT hubs, URBAN PASSENGER TRANSPORT.

 

     Semkin, A. N. Automation of passenger flow determination at stopping points of urban agglomerations / A. N. Semkin, A. S. Bodrov, M. A. Bodrov // Voronezh Scientific and Technical Bulletin. - 2024. - Vol. 4, No. 4 (50). - P. 94-101. Access mode: gallery/94-101.pdf - DOI: 10.34220/2311-8873-2024-94-101. 

    Annotation. Widespread implementation of intelligent transport systems in urban agglomerations allows to increase the efficiency of functioning and the level of automation of transport infrastructure management. For this purpose, based on the application of scientifically based approaches and methods, it is necessary to develop and implement domestic software products and technical means for ITS.

     Keywords: INTELLIGENT TRANSPORT SYSTEMS, URBAN PASSENGER TRANSPORT, SMART STOPS.