Кафедра Галузеве машинобудування ДМетІ (з 2022 р. утворилась шляхом з'єднання кафедри Колісних і гусеничних транспортних засобів та кафедри Машини та агрегати металургійного виробництва)

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http://crust.ust.edu.ua/handle/123456789/16490
ENG: Faculty of Machine Design and Environmental Protection Dnipro Metallurgical Institute

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Browsing Кафедра Галузеве машинобудування ДМетІ (з 2022 р. утворилась шляхом з'єднання кафедри Колісних і гусеничних транспортних засобів та кафедри Машини та агрегати металургійного виробництва) by Author "Bilichenko, Galyna M."

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    Advancement of Risk Analysis Methods during Prolonging the Service Life of Industrial Equipment
    (Springer Nature Switzerland AG, 2023) Belodedenko, Sergii V.; Bilichenko, Galyna M.; Hanush, Vasyl I.; Izhevskyi, Y.
    ENG: The aim of the work was to trace the relationship between the durability of the equipment and its maintenance strategy. This is done by examples of basic structures of industrial equipment. They have a long service life and during this time manage to accumulate certain damages that need to be diagnosed, after which decisions on its maintenance and repair must be made. Problems associated with the technique for extending the service life of industrial equipment are addressed. The authors have created a technique called the resource safety index (RSI), which uses this characteristic as a diagnostic metric. The usage of the risk function to control the technical state of base structures is shown in this study. It is demonstrated how the behavior of the risk function afects the choice of the inspection model. A risk function model for base structures is proposed, which is based on the concepts of stepwise assignment of the limit state and the corresponding useful life. An algorithm for determining the optimal period of restoration measures according to minimizing the cost intensity criterion, where the risk indicator is a parameter, has been developed. The proposed concepts were put into practice when deciding on the further operation of the housings of the 350 pipes rolling unit. The housings of the piercing mill and the automatic mill, which had been in operation for 80 years, were diagnosed. For the frst time, it was discovered that the housings risk function at the crack break through point stage can be represented by a linear dependence directly proportional to the accumulation of operating time. One of the signs of deterioration in the technical condition of rolling mill stands is a malfunction of the system of fxing and securing the housings.
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    Engineering Safety in the Aspect of the Safety and Security Civilization
    (Maximum Academic Press, 2025) Belodedenko, Sergii V.; Bilichenko, Galyna M.; Rassokhin, Dmytro
    ENG: The present article is devoted to the methods of quantitative risk analysis used to ensure the engineering safety of industrial equipment. It aims to clarify the latter's place in the concept of the civilization of safety and security. The features that make engineering universal in engineering are its interdisciplinary nature and the presence of a safety culture. Interdisciplinarity is manifested when considering organizational and legal factors for risk assessment. This is demonstrated by the example of two blast furnace accident scenarios. The safety culture is implemented through initiative-taking maintenance strategies through risk-based maintenance. The theoretical foundations of this strategy are presented: risk and safety indicators, an algorithm for finding the optimal level of risk, and a method for diagnosing the technical condition of mechanical systems. Recommendations on using risk and safety indicators depending on the criticality of the element being diagnosed are given.