Rubric: Technical sciences

Calculation of friction disc parameters in high-performance clutches

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. Calculation of friction disc parameters in high-performance clutches//Science online: International Scientific e-zine - 2025. - №7. - https://nauka-online.com/en/publications/technical-sciences/2025/7/03-36/

Annotation: This article presents a theoretical analysis of the parameters of friction discs used in high-performance automotive clutches, with a focus on the interrelation between chemical composition, geometric characteristics, and thermal load. The study is based on an interdisciplinary approach integrating tribology, materials science, and thermal mechanics. Particular attention is given to the interpretation and comparison of published empirical data reflecting the influence of key elements in friction composites on the coefficient of friction and thermal stability. The geometric and operational parameters of clutches under racing conditions are examined, including high-frequency engagement cycles, limited cooling capacity, and localized thermal gradients in multilayer stacks. A comparative analysis of the thermal behavior of carbon-ceramic and cast-steel discs is conducted, justifying the applicability of each type under specific loading and thermal saturation modes. The study establishes computational relationships between material composition, heat resistance, clutch configuration, and critical slip conditions, enabling the formulation of rational criteria for selecting materials and geometries suitable for clutches operating under extreme conditions. The proposed approach can be integrated into engineering procedures for component selection and evaluation using digital computer-aided design tools. This paper will be of interest to design engineers, powertrain specialists, tribology and thermal analysis researchers, and developers of CAD/CAE systems for frictional components.

Application of combinatorial design principles

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. Application of combinatorial design principles//Science online: International Scientific e-zine - 2025. - №7. - https://nauka-online.com/en/publications/technical-sciences/2025/7/02-42/

Annotation: The field of all types of innovation is typically saturated with a wide range of conventionally applied technical solutions and materials. Therefore, the implementation of innovative changes must be adapted to and integrated with traditional technologies and materials. In general, innovation is not a goal in itself. The central objective of the entire innovation process is to achieve a final result that leads to a qualitative improvement of all parameters of the therapeutic process, while ensuring the continuity of technologies, engineering solutions, and materials — including consumables. Developers have presented their first quantum computer and joined the global race for “quantum supremacy.” The first 20-qubit computer employs modern superconducting technology.

Theoretical principles of automated analysis of DDD compliance

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. Theoretical principles of automated analysis of DDD compliance//Science online: International Scientific e-zine - 2025. - №6. - https://nauka-online.com/en/publications/technical-sciences/2025/6/01-44/

Annotation: This article explores the problems and challenges of automating the analysis of compliance of software systems with Domain-Driven Design (DDD) principles. The main obstacles are identified, including the lack of standardized formal models of the domain area, the difficulty of identifying domain concepts in code without explicit annotations, the diversity of DDD practices across real-world projects, and the technical limitations of current analysis tools. The paper provides a classification of existing architectural analysis approaches, including static and dynamic code analysis, the use of metadata and annotations, domain knowledge modeling through UML and DSLs, and the application of machine learning methods. Promising research directions are outlined, focusing on the development of formal models and metamodels, the integration of compliance verification into CI/CD processes, and the creation of hybrid analysis methodologies. The study aims to contribute to the foundation for future development of tools ensuring the architectural quality of complex software systems.

Fiber-optic sensors for monitoring gas leaks and temperature in industrial facilities

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. Fiber-optic sensors for monitoring gas leaks and temperature in industrial facilities//Science online: International Scientific e-zine - 2024. - №6. - https://nauka-online.com/en/publications/technical-sciences/2024/6/05-25/

Annotation: The article discusses the theoretical foundations and practical application of fiber-optic sensors (FOS) for detecting gas leaks and monitoring temperatures at industrial facilities. A comprehensive analysis of the operating principles of FOS, their classification, signal modulation methods, and distributed sensing is carried out. Particular attention is paid to their application in aggressive environments, including in the oil and gas, chemical, and energy industries. The advantages and limitations of the technology are presented, as well as the prospects for its development within the framework of industrial digitalization and the implementation of IoT solutions. Directions for further research, including intelligent signal analysis, increased selectivity, and standardization of application are considered separately.

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