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Information × Registration Number 0225U000929, (0121U107582) , R & D reports Title Development and improvement of methods for resource forecasting and ensuring the reliability of the launch facilities for space launch vehicles and shell structures of rocket and space technology and energy popup.stage_title Розробка методів обґрунтування надійності стартових споруд космічних ракет носіїв в процесі експлуатації. Чисельне дослідження впливу існуючих недосконалостей на напружено-деформівний стан оболонкових конструкцій енергетики на основі розроблених методик. Head Poshyvalov Volodymyr P., Доктор технічних наук Registration Date 21-01-2025 Organization Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine popup.description1 The purpose of the work is to develop new and improve existing methods of resource forecasting and ensure the reliability of launch facilities for space launch vehicles and shell structures of rocket and space technology and energy popup.description2  The object of research is complex technical systems, thin-walled structures for spacecraft applications, various branches of mechanical engineering and energy industry. The aim of this work is to develop methods for reliability justification of the launch pads for spacecrafts during operation and numerical analysis of the influence of initial imperfections on the stress-strain state of industrial shell structures, based on the developed methods. Research methods: reliability theory; applied probability theory; fracture mechanics of materials; methods of solid mechanics, statics and dynamics of thin-walled structures, structural mechanics, computational mathematics. Using the developed methods, the stress-strain state of thin-walled cylindrical structures with initial imperfections under local loads has been obtained. The finite element model of a steel tank has been verified in order to determine its compliance with the principles of the shell theory. Methods for reliability justification of complex technical systems, in particular - launch pads for spacecrafts during operation, have been developed. The results of the scientific research on the reliability of the launch pads for spacecrafts during operation have been summarized. The field of application is aerospace engineering, mechanical engineering, and energy industry. The results obtained at the current stage will be used in the next stage for summarizing the research findings on the development and improvement of methods for service life prediction and ensuring the reliability of the launch pads for spacecrafts and shell structures in aerospace engineering and energy industry. Product Description popup.authors Blazhko Volodymyr A. Daniiev Yurii F. Doiar Olha P. Kucherenko Oleksandr Ye. Nozdrina Olha S. Reznychenko Liudmyla V. Telehina Inna I. Terokhin Bohdan I. popup.nrat_date 2025-01-21 Close