Journal of Computer and Systems Sciences International

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Stability and stabilization of one class of linear nonstationary constant-delay systems
Journal of Computer and Systems Sciences International - Tập 56 - Trang 173-185 - 2017
B. G. Grebenshchikov, A. B. Lozhnikov
The algorithms for stabilizing particular systems of differential equations with a constant delay are proposed; here, the right side of one of subsystems contains the multiplier e t . The sufficient conditions of the instability and the stability in a first approximation are obtained.
Analysis of Equal-Share and Equalized Flow Distribution at the Peak Load in the Multiuser Network
Journal of Computer and Systems Sciences International - Tập 60 - Trang 776-784 - 2021
Y. E. Malashenko, I. A. Nazarova
On the example of a multiuser communication network model, a finite-step method of distributing internodal flows that can be simultaneously transmitted between all pairs of nodes is considered. Two strategies for obtaining feasible distributions, which make it possible to fully use the capacity of all network edges, are analyzed and compared. Computational experiments are carried out on models of ...... hiện toàn bộ
Calculation of Program Control Not Generating Singularities in Gyrosystems
Journal of Computer and Systems Sciences International - Tập 58 - Trang 260-269 - 2019
E. I. Druzhinin
A new approach to calculating the program controls of the spacecraft (SC) attitude by single-gimbal control moment gyros (gyroscopes in English terminology or gyrodynes in Russian terminology) is described in details. The novelty of the proposed method of calculating program controls is the virtual kinematic configuration of the actuator gyrosystem and the use of the angular momentum of the SC as ...... hiện toàn bộ
Control of a Moving Mass with the Initial and Final Position on the Boundary of the Area of Motion in Order to Achieve the Fastest Rotation of a Solid Body
Journal of Computer and Systems Sciences International - Tập 60 - Trang 559-575 - 2021
A. M. Shmatkov
In a flat case, we consider the task of rotating a solid body by the given angle for the minimum possible time by using a mobile mass (interacting with this body) whose movements are restricted by the interior of the given circle. The corresponding two-point time-optimal control problem for a system with three phase variables (in the presence of a phase constraint) is investigated. The presence of...... hiện toàn bộ
Phase portraits of two-dimensional bilinear control systems
Journal of Computer and Systems Sciences International - Tập 45 - Trang 345-355 - 2006
V. N. Zhermolenko
Phase portraits characteristic of two-dimensional bilinear control systems with different oscillatory properties are constructed.
On the Existence, Uniqueness, and Stability of Periodic Modes of Motion of a Locomotion System with a Mobile Internal Mass
Journal of Computer and Systems Sciences International - Tập 59 - Trang 129-137 - 2020
D. Yu. Knyaz’kov, T. Yu. Figurina
In this paper, we consider the rectilinear motion of a locomotion system consisting of a hull and an internal mass in a resisting medium during periodic movement of the internal mass relative to the hull. The periodic modes of the system’s movement, in which the hull’s speed is also a time periodic function, are studied. The questions of the existence and uniqueness of periodic modes of system mot...... hiện toàn bộ
Construction and investigation of ballistic diagrams of flight of a manned space vehicle to mars
Journal of Computer and Systems Sciences International - - 2007
Н. М. Иванов, Yu. F. Kolyuka
A model of fuzzy coalition games in problems of configuring open supply networks
Journal of Computer and Systems Sciences International - Tập 48 - Trang 765-778 - 2009
L. B. Sheremetov
Generation of coalitions in multi-agent systems makes it possible to develop effective organizations. A model of a fuzzy cooperative game with coalitions is described. This model extends the model of a fuzzy coalition game with the associated core by introducing individual fuzzy payments and binary values into the fuzzy core for generating effective coalition structure. The model characteristics a...... hiện toàn bộ
Optimal motion control for a system of two bodies on a straight line
Journal of Computer and Systems Sciences International - Tập 46 - Trang 227-233 - 2007
T. Yu. Figurina
The optimal control problem for motions of a system of two rigid bodies on an inclined straight line in a plane that are periodic in velocity is solved. The external body (frame) moves on a plane under the action of a force from the inner body in the course of its motions relative to the frame under dry friction between the frame and plane. The acceleration of the inner body relative to the outer ...... hiện toàn bộ
Identification of Objects During the Structural and System Monitoring of the Situation
Journal of Computer and Systems Sciences International - Tập 60 - Trang 695-700 - 2021
A. A. Kochkarov, S. N. Razinkov, A. V. Timoshenko, V. A. Shevtsov
Using the criterion of the minimum average risk, the statistically optimal algorithm for identifying objects by the same type of parameters is synthesized for the structural and system monitoring of the situation. In order to reduce computational costs, its quasi-optimal modification is performed, based on the exclusion of significantly different parameter values from the compared arrays. An ident...... hiện toàn bộ
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