Journal of Mechanical Engineering and Transport最新文献

{"title":"Application of the CAD/CAE system Solidworks in the tasks of analysis of strength of parts of the clamping fixtures","authors":"Oleksandr Petrov, O. Piontkevych, Antonina Buda, Viktor Kolomiiets","doi":"10.31649/2413-4503-2024-19-1-95-102","DOIUrl":"https://doi.org/10.31649/2413-4503-2024-19-1-95-102","url":null,"abstract":"The strength of parts is a critically important characteristic of the design of Clamping Fixtures. Calculating the strength of parts of Clamping Fixtures is necessary both when designing new structures and when checking existing ones. Traditional calculation methods, such as nominal stress calculation, although easy to use, have low accuracy. This creates a need for more accurate and efficient strength analysis methods. Modern CAD/CAE systems, in particular SolidWorks with the Simulation application, provide powerful tools for engineering calculations and finite element modeling. \u0000The algorithm of static calculation presented in the article on the example of the \"Grip\" part demonstrates the sequence of actions during strength analysis in the SolidWorks environment. This algorithm includes creation of a 3D model, generation of a finite-element mesh, material selection, determination of anchoring and loading conditions, calculation and analysis of results. An important stage of the analysis is the choice of the material of the part. At the same time, it should be taken into account that the databases of foreign CAD/CAE systems may not contain some domestic materials, which requires the selection of analogues with similar characteristics. The system allows you to visualize the results of calculations in the form of colored diagrams of stress and strain distribution. This greatly facilitates the analysis and interpretation of the results, allowing the critical areas of the structure to be quickly identified. The use of CAD/CAE systems for strength analysis of machine tool parts has a number of advantages compared to traditional methods. It increases the accuracy of calculations, reduces the time for their implementation, allows you to easily make changes to the design and instantly assess their impact on the strength of the part. The proposed method allows you to carry out both design and verification calculations of details of Clamping Fixtures. This makes it a versatile tool for structural engineers. The implementation of such strength analysis methods is particularly relevant both for the educational process and for real production. In terms of training, it allows students to gain practical skills in working with modern engineering systems. In production, it helps to improve the quality of design, reduce the number of errors and optimize structures.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"20 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141653634","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":"Improvement of container terminal design methodology","authors":"Volodymyr G. Zahorianskyi, Mykola M. Moroz, Tetyana V. Haikova, Olga V. Tsymbal","doi":"10.31649/2413-4503-2023-18-2-56-62","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-56-62","url":null,"abstract":"The purpose of the article is to develop a refined methodology for the general design of a container terminal. The difference between the proposed design methodology and the existing ones is that a solution is proposed to change its throughput (annual container flow passing through it), without changing the dimensions of the container yard and the way containers are stored, that is, with the same capacity of the container yard. Such cases occur, for example, when it is necessary to reconstruct a container terminal. Cargo terminals for containers are a specific area of logistics and cargo delivery systems, where cargo is processed in consolidated transport modules – containers. The main stages of analyzing or projecting a warehouse as a complex stochastic technical system should be considered: objective setting (it should be single); selection and determination of elements of technological areas and warehouse structure, as various connections between system elements; analyzing of system functioning (including its simulation); consideration of system interaction with surrounding environment; consideration of results of the warehouse system performance, and operation. It is interesting to point out that this general methodology can be used while creating or analyzing any other transformation of technical or social system, which receives a flow of some objects with one set of parameters, processes it through its structure, and gives them out with other values of parameters. \u0000This method of formalizing the functioning of the container terminal can be used for its calculations, modeling, research and optimization. In the processes of interaction with environmental systems, the container terminal passes from one state to another, which are characterized by the types and volume of technological operations that must be performed at the moment, cargo that must be stored, delivered to and from the terminal, assembled, sorted, business employee processes, forklifts, cranes and other equipment in use. The functioning of the container terminal (part of the warehouse system) as a procedure of transitions from one state to another can be represented in the form of a graph or transition probability matrix. \u0000 ","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"53 43","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778029","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 passing a turn by a vehicle","authors":"Oleg L. Lyashuk, R. M. Rogatynskyi, Ivan B. Hevko, R. Horoshyn, Galyna G. Kashkanova, Oleg P. Antonyuk","doi":"10.31649/2413-4503-2023-18-2-87-93","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-87-93","url":null,"abstract":"The car turning model is considered, in particular at an X-shaped intersection with an arbitrary intersection angle of the tracks. The conditions and restrictions that are imposed when the car enters a turn are analyzed. It is shown that, when the car moves from straight to curved sections, angular accelerations acting relative to its vertical axis have a significant influence on the redistribution of the forces of interaction between the wheels and the road surface and, accordingly, on the stability and controllability of the car. The analysis of motion trajectories, which consist of conjugate rectilinear and curvilinear sections and are described by the equations of a circle, a parabola, and a hyperbolic cosine, is provided. It is shown that choosing a trajectory according to the law of parabola and hyperbolic cosine slightly reduces the turning radius of the car, but significantly reduces the curvature gradient in the conjugation zone and, accordingly, reduces angular accelerations and increases the resistance of the car to rotation relative to the vertical axis. For a smooth transition from a straight path to a curved one, a special logistic dependency was used to connect (stitch) different sections of the route. This made it possible to describe the trajectory of the car by a smooth function, the first and second derivatives of which are also smooth functions. For the selection of the trajectory of passing turns with a slight curvature of the route, a dependence in the form of a fourth-degree polynomial, the curvature of which at the point of conjugation is equal to zero, is proposed, which ensures a smooth transition from a straight to a curved section and ensures passing a turn with minimal dynamic loads. \u0000The developed model allows you to design the trajectory of turning for various types of intersections in real time and can be used to build dynamic models of car movement along given trajectories, as well as to build simulators for unmanned vehicles.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"63 47","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778755","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 passing a turn by a vehicle","authors":"Oleg L. Lyashuk, R. M. Rogatynskyi, Ivan B. Hevko, R. Horoshyn, Galyna G. Kashkanova, Oleg P. Antonyuk","doi":"10.31649/2413-4503-2023-18-2-87-93","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-87-93","url":null,"abstract":"The car turning model is considered, in particular at an X-shaped intersection with an arbitrary intersection angle of the tracks. The conditions and restrictions that are imposed when the car enters a turn are analyzed. It is shown that, when the car moves from straight to curved sections, angular accelerations acting relative to its vertical axis have a significant influence on the redistribution of the forces of interaction between the wheels and the road surface and, accordingly, on the stability and controllability of the car. The analysis of motion trajectories, which consist of conjugate rectilinear and curvilinear sections and are described by the equations of a circle, a parabola, and a hyperbolic cosine, is provided. It is shown that choosing a trajectory according to the law of parabola and hyperbolic cosine slightly reduces the turning radius of the car, but significantly reduces the curvature gradient in the conjugation zone and, accordingly, reduces angular accelerations and increases the resistance of the car to rotation relative to the vertical axis. For a smooth transition from a straight path to a curved one, a special logistic dependency was used to connect (stitch) different sections of the route. This made it possible to describe the trajectory of the car by a smooth function, the first and second derivatives of which are also smooth functions. For the selection of the trajectory of passing turns with a slight curvature of the route, a dependence in the form of a fourth-degree polynomial, the curvature of which at the point of conjugation is equal to zero, is proposed, which ensures a smooth transition from a straight to a curved section and ensures passing a turn with minimal dynamic loads. \u0000The developed model allows you to design the trajectory of turning for various types of intersections in real time and can be used to build dynamic models of car movement along given trajectories, as well as to build simulators for unmanned vehicles.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"40 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139838377","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":"Terminology of the morphological environment for the modelling of technical systems","authors":"Roman V. Zinko, Yurii U. Skvarok, Viktor E. Martyn, Andriy P. Polyakov, Yaroslav V. Saftyuk","doi":"10.31649/2413-4503-2023-18-2-63-72","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-63-72","url":null,"abstract":"Unlike the words of the language of common goals, the appearance of the term goes through a more complicated path and is connected with a new phenomenon of reality, so it is not spontaneous. The term, unlike the words of natural language, always describes a single, strictly defined set of material objects or their interactions and relationships. Each term has a strict definition that conditions such unity, and to understand a term it is necessary to know both its own definition and the definitions of all the terms used in its definition, down to the basic, undefined, concepts. The appearance of the term, unlike the words of the language of common goals, goes through a more complicated path and is not spontaneous, as it is connected with a new phenomenon of reality, the nomination of which is one of the links of the process of cognition. The rapid formation of new disciplines entails the need for its own terminology. \u0000The article analyses term formation for the direction of modelling technical systems using the morphological environment. Various ways of forming terms are considered, the main of which are: formation by word-forming derivative - creation of new words from morphemes available in the language according to known (usually productive) models; by means of a semantic derivative, in other words, the formation on the basis of the similarity of a newly called phenomenon with a phenomenon already known in an already existing word of another meaning; by borrowing words from other languages. An example of creating a thesaurus is given. The ways of forming terms are considered: by way of word-forming derivative; by way of semantic derivative; due to the borrowing of words from other languages, the algorithm and peculiarities of the implementation of each method are analysed. \u0000The authors give the classification of terms and the scheme of the process of formation of terms, also the algorithm of using related terms between related disciplines is given, it is emphasized that the possibility of using terms between related disciplines is observed. \u0000An interdisciplinary approach is implemented where the methodology and theoretical foundations of different sciences, in particular disciplines far from each other, are jointly used to study the same phenomenon. An interdisciplinary approach creates the possibility of using terms between related disciplines. The process of such use is shown.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778229","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":"Analysis of existing methods and approaches to the search of damaged armored tank vehicles during technical intelligence in the modern armies of the world","authors":"Y. Pavlov, Andriy Kashkanov","doi":"10.31649/2413-4503-2023-18-2-134-140","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-134-140","url":null,"abstract":"The article proposes the definition of directions and opportunities for the use of technical means of information in the performance of the tasks of rear support of troops in armed conflicts that are taking place today. \u0000Possible areas of application of unmanned aerial vehicles in the technical intelligence system of the National Guard of Ukraine and the Armed Forces of Ukraine are considered. The analysis of various types of unmanned aerial vehicles revealed the peculiarities of their use. The foreign experience of the use and development of unmanned technologies in the field of search and evacuation of damaged armored vehicles was analyzed. Conclusions were obtained regarding the combination of unmanned aerial vehicles with traditional means of technical intelligence, which showed their significant advantages. Prospective areas of application of aircraft in combination with technical intelligence systems of individual units of the National Guard of Ukraine and military units of the Armed Forces of Ukraine during operations and hostilities have been identified. The possibility of combining aviation technologies and means of technical intelligence in armed conflicts of modern armies of the world is also considered. \u0000Technical intelligence was analyzed from the point of view of the type of intelligence by tasks, forces, means and methods; and also as an organization of intelligence activities based on the use of technical means. The dependence on the nature of signals detected by technical means is shown, one of the types of technical intelligence is photo and infrared intelligence based on the interception of light waves (species intelligence). \u0000Species intelligence is considered as the collection of intelligence information based on the analysis of a large number of images obtained with the help of photographic, optical-electronic and radar equipment. According to its specificity, intelligence belongs to technical intelligence and includes air and space intelligence. Species reconnaissance uses photographic images taken in the visible range of the electromagnetic spectrum, infrared photography and multispectral photography. Radar images for species reconnaissance are created by equipment of various electromagnetic ranges synthesized in radar equipment. Spectral reconnaissance should be distinguished from electronic reconnaissance using optical-electronic or radar equipment that does not form an image. \u0000Military experts of developed countries believe that in the modern combat environment, unmanned aerial vehicles (UAVs) for conducting reconnaissance as a means of technical intelligence can more effectively and quickly solve the tasks of technical intelligence. At the same time, the time required to deliver the received intelligence information to the relevant management bodies is reduced.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"133 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139836577","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":"Resource assessment of friction surfaces of the brake disc mechanisms by relative wear indicators for cars","authors":"Oleksandr Nazarov, S. Krivoshapov, Mykolа Sergienko, V. Kashkanov, Vitalii Semchenko, Volodymyr Kulai","doi":"10.31649/2413-4503-2023-18-2-120-126","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-120-126","url":null,"abstract":"Modern development of vehicle designs requires paying great attention to braking properties, which will depend on the design parameters of the brake mechanisms. The article discusses a scheme where a disc brake is installed on the front wheels, and drum brakes are installed on the rear wheels. From the diagram of the distribution of forces that act on the vehicle during braking, the maximum friction forces for the front and rear axles were determined. A general formula was obtained for the braking distance of a vehicle, during which wear of the brake mechanism occurs. We used the results of the well-known theory of friction and wear by I.V. Kragelsky. The mathematical wear model was built for each friction pair. The wear model takes into account the design parameters of the vehicle, the wear resistance coefficient of materials, the initial braking speed of the vehicle, the mileage and braking distance. The main design parameters of the brake system are the friction radius, the kinematic rolling radius of the wheel, and the amount of drive pressure. \u0000To assess the service life of the brake mechanism, it was proposed to use such an indicator as the relative wear of associated parts. A formula has been obtained for calculating this indicator based on changes in geometric parameters and operating modes of the brake mechanism under operating conditions. A forecast was made of the service life of the brake mechanisms of the front and rear axles of passenger cars, which is proposed to be carried out according to the indicator of relative wear of friction surfaces. Graphic dependences of the distribution of relative wear of the friction surfaces of brake mechanisms for Chevrolet Aveo and Forza cars were constructed. It was shown using the example of Chevrolet Aveo passenger cars that the relative wear of the front axle brakes is maximum and it varies from 22.5 to 26.1%, and for the rear axle this figure varies from 21.0 to 22.5%. The service life of the brake disc is 4.44 times greater than the service life of the friction lining for the Chevrolet Aveo. For the Forza car this figure is 4.76. The results of the work can be used to estimate the residual life of brake mechanisms, taking into account operating conditions.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"383 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139839259","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":"Electromagnetic danger of electric and hybrid vehicles","authors":"Alexey V. Bazhynov, M. Kravtsov","doi":"10.31649/2413-4503-2023-18-2-3-9","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-3-9","url":null,"abstract":"The purpose of the article is to determine the impact of electromagnetic radiation from electric vehicles. Hybrid and electric cars emit extremely low-frequency electromagnetic radiation (EMR) or magnetic fields. Studies of EMF levels emitted by cars show that they pose a threat to human health. Measurements of the magnetic induction of internal combustion engine cars, electric cars, and hybrid cars confirm that the magnetic field induction of an electric car is twice as high as that of an internal combustion engine car and does not depend on the speed of movement. The magnetic field induction of a hybrid car is greater than that of an electric car and tends to depend on the speed of movement. The magnetic field induction during external charging of an electric vehicle in the cabin is much lower than when driving. The average value of magnetic field induction in the interior of an electric vehicle is 0.85 ± 0.18 μT; Coverage factor K = 2 at a confidence level of P = 0.95. The magnetic field induction of an electric vehicle is twice as high as that of a car with an internal combustion engine and does not depend on the speed of movement. The average value of magnetic field induction in the interior of a hybrid car is 1.28 ± 0.61 μT; Coverage factor K = 2 at a confidence level of P=0.95. The magnetic field induction of a hybrid car is higher than that of an electric car and tends to depend on the speed of movement.The conducted studies show that electrical equipment in electric vehicles and, in particular, in an electric car and a hybrid car is a source of alternating EMF with strong temporal and spatial heterogeneity in the frequency range from 0 to hundreds of megahertz. This is due to the fact that the MF in an electric vehicle and a hybrid car is a superposition of fields from many sources. The direct sources of MF in electric vehicles are traction motors, rechargeable traction batteries, current-carrying elements, various electrical equipment, such as starting and braking resistance, group switches, rheostat units, electrical circuits for ventilation, lighting, heating, etc. Electronic devices on board are usually higher-frequency than MFs due to changes in the driving mode of electric and hybrid vehicles.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"40 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778502","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":"Development of intelligent transport systems","authors":"Sergii A. Kliuiev, Artem E. Sihonin, Serhii V. Tsymbal","doi":"10.31649/2413-4503-2023-18-2-80-86","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-80-86","url":null,"abstract":"The purpose of the article is to develop a refined methodology for the general design of a container terminal. The difference between the given design methodology and the existing ones is that a decision is proposed to change its throughput (annual container flow passing through it), without changing the dimensions of the container yard and the way containers are stored, that is, for the same capacity of the container yard. Such cases occur, for example, when it is necessary to reconstruct a container terminal. Cargo terminals for containers are a specific field of logistics and cargo delivery system, where cargo is processed in consolidated transport modules - containers. \u0000Considered the main stages of designing a container terminal as a complex stochastic technical system: setting the task (it should be a single one); selection and determination of elements of technological zones and the structure of the container terminal, as various connections between system elements; analysis of system functioning (including its modeling); account of interaction of the system with the environment; consideration of the results of the container transport and technological system and operation. It is determined that this general methodology can be used during the creation or analysis of any other transformation of a technical or social system that receives a stream of some objects with one set of parameters, processes it through its structure and outputs them from other parameters. This method of formalizing the functioning of the container terminal can be used for its calculations, modeling, research and optimization. In the processes of interaction with environmental systems, the container terminal passes from one state to another, which is characterized by the types and volume of technological operations that must be performed at a certain moment, cargo that must be stored, delivered to and from the terminal, assembled, sorted, business employee processes, forklifts, cranes and other equipment in use. The functioning of the container terminal (part of the warehouse system) as a procedure of transitions from one state to another can be represented in the form of a graph or transition probability matrix.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"57 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139836863","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":"Formation of an integrated approach to research on the impact of transport and industrial processes on city-logistic systems","authors":"Serhii Turpak, O. Kuz’kin, Vjacheslav Trushevskyi, Olena Ostrohliad","doi":"10.31649/2413-4503-2023-18-2-168-174","DOIUrl":"https://doi.org/10.31649/2413-4503-2023-18-2-168-174","url":null,"abstract":"Taking into account the need for post-war reconstruction, one of the important issues is the formation of city-logistics systems taking into account the prospects for the development of urban industry, advanced achievements of science and technology, and the introduction of ecological modes of transport. , ensuring the European level of social and cultural development of the population. Meanwhile, enterprises of the metallurgical industry, as a rule, are city-forming in the settlements of industrial districts, they employ tens of thousands of workers. Taking into account the continuity of the main production processes in metallurgy, employees of such enterprises have a need for round-the-clock daily movement from their place of residence to the enterprise and back. At the same time, the schedules of the beginning and end of work shifts may be different at the same enterprise. Under such conditions, it is important to provide employees with timely and reliable transportation to the workplace. Accordingly, the city's transport system as a whole and the city's public transport in particular must be ready to ensure the growth of demand for passenger transportation for the sustainable development of the city's economy and social sphere. The article emphasizes the relevance of the tasks of optimizing the duration of signals both for relatively simple configurations of street network nodes and for complex street intersections with several sections of the road separated by a boulevard. The approach proposed by the authors to the management of the city-logistics system in the conditions of the cities of industrial regions will ensure the growth of demand for passenger transportation for the purpose of sustainable development of the economy and social sphere of cities. The need has been proven and practical solutions have been proposed for increasing the level of road safety, reducing traffic jams, and improving traffic modes within the cities of industrial areas, which allows to reduce the number of traffic accidents, ensures the fulfillment of urban logistics tasks, and also reduces the level of energy consumption of vehicles. expedient connection of various types of street transport, including individual ones, which will ensure rational planning of street space and increase the efficiency of the transport system of cities.","PeriodicalId":157730,"journal":{"name":"Journal of Mechanical Engineering and Transport","volume":"114 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139837438","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}