Search Results - "Kumakshev, S."

Self-Sustained Oscillations and Limit Cycles in the Rayleigh System with Cubic Return Force by Kumakshev, S. A.

“…An oscillatory system with an excitation mechanism as in a Rayleigh oscillator, but with a nonlinear (cubic) returning force, is investigated. Using the…”
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Constraints in the Problem of Finding Optimal Trajectories for a Supersonic Non-Maneuverable Aircraft by Kumakshev, S. A., Shmatkov, A. M.

“…The influence of phase and other constraints on the method of searching for the trajectories of a civil supersonic aircraft that are optimal in terms of fuel…”
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Optimal Minimum-Fuel Trajectories of Supersonic Passenger Aircraft by Kumakshev, S. A., Shmatkov, A. M.

“…Using the classical method of dynamic programming, the trajectories of the motion of a supersonic passenger aircraft, which are optimal in terms of fuel…”
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Gravitational-Tidal Model of Oscillations of Earth’s Poles by Kumakshev, S. A.

“…Based on the analysis of solar and lunar gravitational momentum, a viscoelastic Euler- Liouville model of the Earth’s pole oscillations is constructed. The…”
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Optimal Fuel Consumption Trajectories of a Civil Supersonic Aircraft by Kumakshev, S. A., Shmatkov, A. M.

“…The optimal fuel consumption trajectories of a supersonic passenger aircraft are constructed. A mathematical model of an airliner, which describes in detail…”
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Achievements of the Earth orientation parameters prediction comparison campaign by Kalarus, M., Schuh, H., Kosek, W., Akyilmaz, O., Bizouard, Ch, Gambis, D., Gross, R., Jovanović, B., Kumakshev, S., Kutterer, H., Mendes Cerveira, P. J., Pasynok, S., Zotov, L.

“…Precise transformations between the international celestial and terrestrial reference frames are needed for many advanced geodetic and astronomical tasks…”
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Implementation of the desired state of motion for a vessel with heavy liquid by Akulenko, L. D., Kumakshev, S. A.

“…A mode of precision control of a vessel with an ideal heavy liquid into the state of the desired motion is proposed and justified. The algorithm is implemented…”
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Optimization of the flight trajectory of a non-manoeuvrable aircraft to minimize fuel consumption by the dynamic programming method by Grevtsov, N.M., Kumakshev, S.A., Shmatkov, A.M.

“…Using Bellman's dynamic programming method, a fuel-consumption optimum flight trajectory of a typical mid-range aircraft is constructed for a prescribed range…”
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Bifurcation of multimode flows of a viscous fluid in a plane diverging channel by Akulenko, L.D., Kumakshev, S.A.

“…The pattern of steady multimode flow of a viscous incompressible fluid in a plane diverging channel is constructed and investigated. It is shown that odd-mode…”
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Identification of a source of oceanic ring waves near Darwin’s Island based on space photos by Belyaev, M. Yu, Vinogradov, P. V., Desinov, L. V., Kumakshev, S. A., Sekerzh-Zen’kovich, S. Ya

“…A system of ring surface waves in the Pacific Ocean is identified, which was registered near Darwin’s Island in one of the photos taken according to the…”
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A numerical-analytical method for investigating parametric oscillations by Akulenko, L.D., Kumakshev, S.A., Nesterov, S.V.

“…The natural frequencies and modes of the parametric oscillations of mechanical systems are investigated using the Lyapunov–Poincaré theory and the…”
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Low-frequency model of a granular medium saturated with a viscous fluid by Akulenko, L. D., Kumakshev, S. A., Nesterov, S. V.

“…A mathematical model of a granular medium saturated with a viscous homogeneous fluid is constructed. The steady-state one-dimensional oscillations of…”
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Analysis of multifrequency effects in oscillations of the Earth’s pole by Akulenko, L D, Kumakshev, S A, Markov, Yu G, Rykhlova, L V

“…A least-squares analysis of measurements of the Earth-rotation parameters is used to interpolate these data in order to redict the polar motion using a basic…”
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A gravitational-tidal mechanism for the Earth’s polar oscillations by Akulenko, L D, Kumakshev, S A, Markov, Yu G, Rykhlova, L V

“…Perturbed, rotational-oscillational motions of the Earth induced by the gravitational torques exerted by the Sun and Moon are studied using a linear mechanical…”
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Identification of a system of oceanic waves based on space imagery by Belyaev, M. Yu, Desinov, L. V., Krikalev, S. K., Kumakshev, S. A., Sekerzh-Zen’kovich, S. Ya

“…A system of circular surface oceanic waves that was registered on one of the images taken in accordance with the Uragan program of space experiment is…”
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High-accuracy forecasting of the Earth’s polar motion by Akulenko, L D, Kumakshev, S A, Markov, Yu G, Rykhlova, L V

“…The fundamental astrometrical problem of high-accuracy interpolation of the trajectory of the Earth's pole and construction of an adequate theoretical model…”
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Control of motion of an inhomogeneous cylinder with internal movable masses along a horizontal plane by Akulenko, L.D., Bolotnik, N.N., Kumakshev, S.A., Nesterov, S.V.

“…The controlled motion of a rigid inhomogeneous cylinder over a rough horizontal plane is considered. The control is provided by controlled motion of internal…”
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Forecasting the polar motions of the deformable Earth by Akulenko, L D, Kumakshev, S A, Markov, Yu G, Rykhlova, L V

“…A mathematical model for the complicated phenomenon of the polar oscillations of the deformable Earth that adequately describes the astrometric data of the…”
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Deformation of a Bingham viscoplastic fluid in a plane confuser by Akulenko, L D, Georgievskii, D V, Klimov, D M, Kumakshev, S A, Nesterov, S V

“…A review is given to and comprehensive numerical-analytic study is carried out of the problem of steady Bingham viscoplastic flow in a plane confuser. The…”
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A Celestial Mechanics Model of Oscillations of the Poles of a Deformable Earth by Akulenko, L. D., Kumakshev, S. A., Markov, Yu. G.

“…The problem of Chandler motion of the Earth's poles is studied in the context of the model of a viscoelastic body. The Earth-Moon system is considered as a…”
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