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Information × Registration Number 0219U006025, 0118U003915 , R & D reports Title Development of theory for the design of thin-walled high-strength nanocomposite elements of launch vehicles popup.stage_title Head Avramov K. V., Доктор технічних наук Registration Date 29-03-2019 Organization A. Podgorny's Institute of Mechanical Engeneering Problems of the National Academy of Science of Ukraine popup.description2 Models of deformation of structural elements of aerospace engineering from nanocomposite materials with functional gradient properties are developed and methods for determining their elastic characteristics are proposed. The mixing method is used to determine the mechanical properties of the nanocomposite. The nonclassical models of shells, which make it possible to more accurately describe the process of thickness deformation, are used for analyze the behavior of the nanocomposite shell structures. A control scheme of the stressed state of composite structures with nano-reinforcement, which based on the use of various types of nano-reinforcement and varying the bulk part of nanofibers in the total volume of the composite, is proposed. A model and technique for calculating the dynamic characteristics of the components of the pyrotechnic separation system of composite rocket fairing, where an elastic-plastic damper is used to "relaxation" the impact contact, is developed. The model takes into account active plastic deformation of the damper, elastic unloading and one-way connections. Calculation exploratory researches are performed and the characteristics of the damper deformation are determined at which the maximum dynamic stresses in the components of the pyrotechnic system are minimized. Product Description popup.authors Аврамов Костянтин Віталійович Асайонок Олександр Вікторович Виноходова Ніна Олексіївна Гонтаровський Павло Петрович Зайцев Борис Пилипович Протасова Тетяна Володимирівна Сметанкіна Наталя Володимирівна Ткачик Олена Миколаївна Угрімов Сергій Вікторович Чернобривко Марина Вікторівна popup.nrat_date 2020-04-02 Close