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Information × Registration Number 0219U004216, 0116U003346 , R & D reports Title Applied research of mechanical systems popup.stage_title Head Alekseyenko Sergii Viktorovych, Registration Date 15-04-2019 Organization Oles Honchar Dnipro National University popup.description2 The object of study is the processes of aerodynamics, heat and mass transfer, acoustic oscillations, mechanical systems, control methods. The purpose of the research is the development of methods and programs for calculating hydroaerodynamic and acoustic processes, heat and mass transfer, improvement of control systems for mechanical systems, evaluation of the effectiveness of mechanical systems in mechanics and mechanical engineering. Research methods - methods for the numerical integration of differential equations in ordinary and partial derivatives, Navier-Stokes equations, the wave equation, methods of simulation, statistical processing of simulation results, experiment. The findings, scientific assumptions and recommendations given in the report are based on the fundamental principles of theoretical mechanics, the theory of differential equations and control theory. The software and methodological support for mathematical modeling of aerohydrodynamics and heat and mass transfer processes based on the Navier-Stokes equations, taking into account the surface roughness, has been developed. Algorithms and programs for simulating the distribution of infrasound are compiled. A method has been developed for calculating the noise of an unmanned aerial vehicle propeller and proposed measures to reduce it. Studies of the effects of acoustic oscillations on living organisms have been carried out: the possibility of adverse effects on the bodies of insect larvae by acoustic fields has been determined. A program was developed to experimentally determine the rigidity and resonance frequency of the body of the larva. Using the methods of mathematical and simulation modeling, the movement of transport robots and the dynamics of robot models have been investigated. The possibilities of using robots simulators, including in the educational process of students of robotic specialties, are considered. The designs of existing separators of rolling bearings are considered, their shortcomings are identified, and a design is proposed that improves the cushioning capacity of the separator bridges by reducing bending stiffness. Constructive solutions are protected by patents for utility models. An unconventional method of controlling the stages of a launch vehicle with mass asymmetry is proposed, which allows to significantly reduce fuel consumption when developing disturbances of motion parameters. Applications: aviation, space technology, transport, energy, engineering, agriculture. Product Description popup.authors Алхімов Олександр Володимирович Ащепкова Наталія Сергіївна Дудніков Володимир Степанович Капера Сергій Сергійович Кириченко Сергій Юрійович Ковальчук Ярослав Антонович Манойленко Олександр Олексійович Николин Сергей Александрович Ромасько Юрій Анатолійович Савчук Тетяна Леонідівна Сахно Олександра Анатоліївна Сокол Галина Іванівна Хоріщенко Олександр Андрійович Шептун Юрій Дмитрович Юшкевич Олег Павлович popup.nrat_date 2020-04-02 Close