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Information × Registration Number 0223U002312, 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 14-02-2023 Organization S.P. Tymoshenka Institute of Mechanics of the National Academy of Sciences of Ukraine popup.description2  Optimal trajectories and regular and singular laws for operation control of the propulsion system of launch vehicles for launching spacecraft into equatorial mounting orbits have been developed, taking into account the rotation of the Earth and various variants of the aerodynamic characteristics of the rocket body. The influence of the weight characteristics of the rocket engine on the control characteristics peculiarities of thrust has been established. It is shown that with weight improvement of the propulsion system (reduction of its specific mass) there is a certain threshold value of this specific mass. In the case of propulsion systems with a specific mass less than the threshold, propulsion systems with an engine that allows thrust throttling within sufficiently wide limits along the singular arcs of the trajectory will be optimal. Wherein, a transition from an unregulated rocket engine to an engine with variable thrust is necessary. At the same time, the value of the above-mentioned threshold value decreases with the improvement of the rocket aerodynamic characteristics. Research methods are analytical, analytical-numerical. Product Description popup.authors Кіфоренко Борис Микитович Kirilyuk Vitaly S. Kubenko Veniamin D. Levchuk Olga Maksymchuk Oleksandr M. Manafova Olga P. Martynyuk-Cherniyenko Yuliya A. Ostos Olexandr H Tkachenko Yaroslav V. Khoroshun Tetyana L. Yanchevskyi Ihor V popup.nrat_date 2023-02-14 Close