NONE 20260213120107474 wseas/wseas content-registration-form+ja@crossref.org content-registration-form DESIGN CONSTRUCTION MAINTENANCE 2944-912X 2732-9984 Svitlana Sotnik Department of Computer-Integrated Technologies, Automation, Robotics and Security Engineering Kharkiv National University of Radioelectronics Kharkiv, UKRAINE An automated system for calculating gear transmissions has been developed with the goal of enhancing the accuracy of engineering calculations and minimizing the likelihood of errors in mechanical engineering. The problems of traditional calculation methods, which are characterized by high labor intensity and significant human influence, have been investigated. A modular system has been proposed that integrates a mathematical apparatus for calculating the geometric, kinematic, and energy parameters of transmissions. The system's algorithms provide automatic validation of input data. The software implementation is performed using Windows Forms (.NET), which provides an intuitive user interface. An experimental verification of the accuracy of the calculations was conducted, which demonstrated a maximum error of less than 0,44 % compared to manual calculations. Key advantages of the system: reduction of calculation time, integration of all design stages in a single environment, and adaptability to different load ranges. The results of the study confirm the effectiveness of the proposed approach and its competitiveness compared to existing commercial solutions. 12 31 2025 12 31 2025 273 26 https://creativecommons.org/licenses/by/4.0/deed.en_US 10.37394/232022.2025.5.26 https://wseas.com/journals/dcm/2025/a52dcm-023(2025).pdf S. V. Sotnik, Development of automated control system for continuous casting, Radio Electronics, Computer Science, Control, № 2(69), 2024, pp. 181–189. DOI: 10.15588/1607-3274- 2024-2-18 К. А. 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