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Information × Registration Number 0224U002444, 0118U100376 , R & D reports Title Dynamics of systems of semi-bounded structural elements filled with liquid and control systems of rockets movement in an atmosphere. popup.stage_title Head Kubenko Veniamin D., Доктор фізико-математичних наук Registration Date 14-02-2024 Organization S.P. Tymoshenka Institute of Mechanics of the National Academy of Sciences of Ukraine popup.description2  Recommendations for the use of wave processes in a semi-infinite cavity with a fluid containing a spherical inclusion have been developed. Recommendations have been developed to assess the feasibility of including variable thrust arcs in the launch vehicle trajectory, which ensures the maximum mass of the payload launched into the assembly orbit. The possibility of using a simplified mathematical model of rocket engine thrust in solving problems of optimizing rocket flight in the atmosphere is substantiated. Recommendations for the calculation of contact parameters and stress distribution in the contact interaction of transversally isotropic electroelastic half-spaces in the presence of imperfections at the interface (disk-shaped inclusion under compression, circular hard disk under movement and rotation, elliptical hard disk under movement) have been developed, which allows for a scientifically sound analysis of the stress state in an electroelastic material. The influence of the coupling of force and electric fields on the parameters of contact of electrically elastic bodies and stress distribution is analyzed, which makes it possible to predict the feasibility of using simplifying approaches and hypotheses for their calculation in certain cases. Product Description popup.authors Kiforenko Borys M. Kyryliuk Vitalii S. Kubenko Veniamin D. Levchuk Olha I. Maksymchuk Oleksandr M. Manafova Olha P. Martyniuk-Cherniienko Yuliia A. Ostos Olexandr H. Tkachenko Yaroslav V. Khoroshun Tetiana L. Yanchevskyi Ihor V. popup.nrat_date 2024-02-14 Close