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
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
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 ...
Calculation of Program Control Not Generating Singularities in Gyrosystems
Journal of Computer and Systems Sciences International - Tập 58 - Trang 260-269 - 2019
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 ...
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
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...
Phase portraits of two-dimensional bilinear control systems
Journal of Computer and Systems Sciences International - Tập 45 - Trang 345-355 - 2006
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
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...
Construction and investigation of ballistic diagrams of flight of a manned space vehicle to mars
Journal of Computer and Systems Sciences International - - 2007
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
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...
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
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 ...
On supervisory control of mobile platform on four swivel wheels
Journal of Computer and Systems Sciences International - Tập 50 - Trang 325-335 - 2011
A mobile robotic platform with four driving swivel wheels, whose centers are
situated at the vertices of a rectangle, is considered. Each of the wheels can
rotate about its horizontal axis in a common way, and the plane of the wheel
situated in a fork can turn with respect to the platform about the perpendicular
axis. These turns and rotations of four wheels are performed using eight drives.
The p...
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