Acta of Turin Polytechnic University in Tashkent

DESIGNING A DIGITAL PROTOTYPE OF TRACTOR IN THE SOLIDWORKS ENVIRONMENT TO CREATE A VIRTUAL SIMULATION OF MOVEMENT ON VARIOUS SLOPES

Shahodat Ikhsanova, Jakhongir Norkulov — Mon, 30 Dec 2024 00:00:00 +0000

This work shows the process of creating a digital prototype of a tractor using the SolidWorks simulation program. Also the movement of a four-wheeled tractor on different slopes is shown. Taking into account the masses of the front and rear wheels of the tractor, loads, moment of resistance, force resistance were calculated, as well as the deflection of the wheel tire when the unstable elastic wheel was turned on a slope under the influence of the side component of the load was analyzed

IMPORTANCE OF PRESERVING HISTORICAL MONUMENTS OF THE 20TH CENTURY IN THE CITY OF TASHKENT. STATE ACADEMIC BOLSH THEATER NAMED AFTER ALISHER NAVOI

Tatyana Kim — Mon, 30 Dec 2024 00:00:00 +0000

The article focuses on the importance of preserving historical heritage, in particular architectural buildings. According to the principle of the State Academic Bolshoi Theater named after. Alisher Navoi, we trace the history of creation and the need to preserve this monument for our future generations. In conclusion, the preservation of the originality of historical architectural objects will be noted.

VIBRATION-DAMPING, ANTI-CORROSION COMPOSITE COATING FOR COMPONENTS OF TRANSPORT AND TECHNOLOGICAL MACHINERY.

Erkinovich, Zafar Tadjiyev — Mon, 30 Dec 2024 00:00:00 +0000

The article points to the modification and inclusion of organomineral fillers in the composition of coatings, which improve the properties of vibration reduction, as well as significantly increase the physical and mechanical properties of coatings. In order to address the problems of both mechanical wear and environmental deterioration, this study presents a composite material that has better corrosion resistance together with vibration damping capabilities. The study demonstrates the improved resistance of this coating to chemical corrosives and physical vibrations using a rigorous formulation process that incorporates sophisticated polymers and nano-materials. Significant gains in component longevity and performance are revealed by extensive testing conducted under simulated operating settings, underscoring the coating's potential to completely transform maintenance procedures in the transportation and technology industries.

EXTENDING THE SERVICE LIFE OF DIESEL LOCOMOTIVE DIESEL ENGINES THROUGH THE USE OF MODERN DIAGNOSTIC METHODS

Abdulaziz Yusufov — Mon, 30 Dec 2024 00:00:00 +0000

Efficient use of diesel locomotives imply, in particular, high reliability in operation, minimum maintenance and repair costs, and maximum utilization of resource and energy potential. In this regard, a special role is assigned to technical diagnostics. The current reliability of a diesel locomotive at each given moment of its use depends on a number of factors acting in the period of time preceding this moment. For example, the reliability of a newly built locomotive depends on the level of research and development, the quality of manufacturing of assemblies and parts, as well as their assembly and adjustment. The reliability of a locomotive in operation is determined not only by the above factors, but also by the conditions in which it operates (climate, air dustiness, track layout and profile, weight of trains, etc.), as well as by the organization of its maintenance and repair (method of locomotive maintenance by crews, qualification of locomotive crews, frequency of inspections and repairs and volumes of repair work performed during these inspections and repairs, quality of repair work, etc.).

Review of industrial robot and robotic simulator market and available education platforms for robotics learning in Uzbekistan

Jasurkhuja Kholkhujaev, Fazluddin Khusnuddinov, Sarbinaz Kengesbayeva — Mon, 30 Dec 2024 00:00:00 +0000

The paper provides a comprehensive analysis of the in-dustrial robotics market in Uzbekistan and Central Asia, examin-ing its current state, key industry segments, and projected trends up to 2028. Particular attention is given to the dominant sectors, in-cluding food, metal, and automotive industries, with revenue fore-casts indicating significant shifts in market dynamics. The study also evaluates the role of robotic software and simulators, such as RoboDK and PolyScope, as essential tools for programming, simu-lation, and education, even in the absence of physical laboratories. Furthermore, the global proliferation of online education platforms, including Udemy, Coursera, and Khan Academy, is reviewed, with an emphasis on their application in robotics education and profes-sional development. The findings underscore the increasing demand for robotics specialists and the strategic importance of integrating blended learning methodologies to address challenges in STEM ed-ucation. The research highlights the potential for Central Asia to emerge as a hub for industrial robotics, driven by technological ad-vancements and evolving educational frameworks.

Adoption of Industry 4.0 Learning Factory teaching framework for Uzbek Technical Universities for robot programming

Ikrom Kambarov — Mon, 30 Dec 2024 00:00:00 +0000

The proposed "Learning Factory" framework developed by Tashkent Turin Polytechnic University (TTPU) is based on the design, hardware, production, integration and management phases, as well as three manufacturing levels: Shop Floor, Control and Top Floor. The first layer of the outlined framework, initially implemented and validated to teach engineering students for shop floor activities, proposes a 'machine coding and operation' layer for product and process monitoring. This layer is intended to teach mechanical engineering students of the manufacturing process course. The next step of the proposed framework deals with robot programming in shop floor activities. To address these issues, professors at Tashkent Turin Polytechnic University developed a teaching laboratory manual for shop floor robot programming for mechanical and industrial engineering students. This level uses RoboDK offline robot programming and URe5 collaborative robot for case study. It is expected that this layer will generate new competences, support the emergence of new business models, business networks and spin-offs in the region.

MODELING OF HYDRAULIC ACCUMULATOR IN HYDROSTATIC REGENERATIVE BRAKING SYSTEM

Takhirjan Pulatov — Mon, 30 Dec 2024 00:00:00 +0000

This paper presents the mathematical model of the hydraulic accumulator, one of the key components of the hydrostatic regenerative braking system. The study focuses on the changes in thermodynamic parameters that occur during the compression of nitrogen gas due to the movement of oil inside the hydraulic accumulator. Specifically, the variations in pressure, temperature, density, and volume of the gas within the accumulator are analyzed. The findings provide valuable insights into the performance of the hydraulic accumulator, which can be used to optimize technological processes and aid in the design of hydrostatic systems. This work lays an important foundation for scientific developments aimed at enhancing the efficiency of hydrostatic braking systems and their wider implementation in practice.

RESEARCH ON THE EXTRACTION OF COPPER AND OTHER METALS FROM COPPER SLAGS USING SULFURIC ACID LEACHING

Madatjon Akhmedov — Mon, 30 Dec 2024 00:00:00 +0000

This study explores the dissolution behavior of copper (Cu), iron (Fe), and zinc (Zn) from copper slags in sulfuric acid solutions under controlled experimental conditions. A series of experiments were performed to evaluate the effects of acid concentration (1,5 M, 2 M, and 2,5 M), temperature (70 °C, 80 °C, and 90 °C), and leaching duration (60, 90, and 120 minutes) on metal recovery efficiency. The findings demonstrated that a sulfuric acid concentration of 2,5 M, combined with a temperature of 90 °C and a leaching time of 120 minutes, yielded a copper recovery rate of up to 95% and an iron recovery rate of approximately 90 %. The study further established that higher acid concentrations and elevated temperatures significantly improve the efficiency of metal dissolution. In contrast, experiments conducted with lower acid concentrations (1,5 M and 2 M) showed a notable reduction in copper and iron recovery rates. Moreover, particle size reduction to below 100 microns was found to enhance the interaction between the acidic medium and metal oxides, leading to improved leaching efficiency. These results underline the critical influence of acid concentration, temperature, and reaction time as key parameters in optimizing the leaching process for metal recovery from slags.

A data-driven approach to define a mathematical model of the traction battery used in small class electric vehicles.

SEYRAN ASANOV — Mon, 30 Dec 2024 00:00:00 +0000

This paper presents a data-driven approach to develop a mathematical model of a traction battery used in small class electric vehicles. The methodology includes the analysis of experimental data, approximation of the electromotive force (EMF) and internal resistance dependencies on the state of charge (SOC) using regression analysis, and scaling of the model for a full battery considering series and parallel cell connections. The proposed model provides high prediction accuracy, which is confirmed by experimental test results. The obtained model can be applied to optimize the battery management of electric vehicles, to improve their energy efficiency and performance.

ANALYSIS OF THE PROCESS AND ENERGY LOSSES DURING ELECTRIC VEHICLE CHARGING

Fikret Umerov — Mon, 30 Dec 2024 00:00:00 +0000

The development of the electric vehicle industry in the world, as well as in Uzbekistan, is one of the promising directions in the field of transportation aimed at improving the environment. The development of this industry requires the solution of a number of problems, including the development of legal and regulatory documents, the formation of solution methods and the development of infrastructure. The formation of infrastructure for electric vehicles requires the creation of new markets for innovative products and therefore needs active support in various production and social sectors of the state. The development of charging infrastructure, the increase of charging stations and the supply of electricity to these charging stations so competently, and the charging of electric vehicles with minimal energy losses is a relevant area. This paper is devoted to analyze and study the energy losses in charging of electric vehicles.

Transforming the Workforce Through Advanced Communication and Mechatronics

Farkhod Makhkamov — Mon, 30 Dec 2024 00:00:00 +0000

Collaborative robots (cobots) are revolutionizing contemporary industries by facilitating fluid interaction between humans and machines via sophisticated mechatronics and communication technologies. This study examines their technical basis, applications, and contributions to Industry 4.0. Cobots promote productivity and mitigate industrial injuries with advanced safety systems and adaptability. Case studies from manufacturing and healthcare illustrate their success, however obstacles such as worker adaption and cost barriers remain. Further study is required to enhance safety standards and broaden cobot integration across many industries.

Geometric Modeling of Curved Shapes and Cubic Spline Approximation in Engineering Graphics

Temur Turdiyev — Mon, 30 Dec 2024 00:00:00 +0000

This paper presents a study on cubic spline interpolation, focusing on its application in modeling smooth and continuous curves for engineering graphics. Cubic splines are a series of third-degree polynomial functions connected at control points, ensuring smooth transitions that are critical in fields such as CAD, computer graphics, and animation. This research addresses the challenges encountered when modeling with irregular control points and non-uniform intervals, which can cause traditional cubic spline interpolation methods to generate oscillations or lose continuity. By investigating the mathematical framework of cubic splines, including boundary and continuity conditions, we propose an adaptive approach that improves interpolation performance in these challenging configurations. Computational experiments validate the effectiveness of the method, demonstrating smoother and more accurate curve representations in edge cases. This adaptive cubic spline interpolation approach provides an enhanced solution for geometric modeling, enabling more reliable and visually accurate results in engineering applications.