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The previously developed technology of multicriteria optimization of deterministic parabolic distributed parameter systems can be applied in situations with interval uncertainties of parametric characteristics of controlled objects. Minimax tasks of mathematical programming are formed in accordance with a control strategy based on the principle of the best guaranteed result on an expanded set of arguments, which includes all permissible realizations of uncertain factors, in the case of estimation of a given approximation accuracy to a required finite state of the system in uniform metric. These tasks are solved by an alternance method that uses the Chebyshev properties of desired extermals and fundamental laws of the problem domain. Of independent interest is the given example of multicriteria optimization of temperature regimes of induction heating of metallic semifinished products before plastic deformation operations in technological complexes for pressure treatment of metal

The problem of estimating the state vector of a bilinear dynamic system with a vector entrance is under consideration. It is shown that, with fulfillment of multiple restrictions, a Luenberger state observer can be formed, which ensures that the estimation error tends to zero. A step-by-step algorithm for determining the matrices of observer coefficients is proposed, based on matrix canonization and modal control methods

This paper describes the problem of automation of choosing the parameters of an electric hydraulic drive controller for a single-channel strength load stand for airframe elements. A parameter configuration method for a proportional-integral stand controller is proposed, based on the results of relay feedback tests and motion separation method. The results obtained make it possible to automatically configure the controller parameters of the strength test stand and improve the accuracy of implementation of force loading cyclograms of structures, which eventually makes it possible to accelerate strength tests. The results of analyzing the implementation of this technique on an experimental stand are given.

Results of studying the system used to control the flight of a hybrid aerial vehicle prototype in transitional regimes are presented. The hybrid vehicle is equipped with a quadrotor and main propulsion units. The control system developed in the study includes subsystems for attitude stabilization, vertical takeoff, hovering, and landing, as well as a control subsystem operating in transitional regimes from quadrotor to aircraft modes and back.

Operating and engineering characteristics of a hybrid aerial vehicle are presented. A mathematical model in the MATLAB/Simulink environment is described. Results obtained by means of hardware-in-the-loop simulations and confirming the efficiency of the proposed control method are reported

A procedure for designing PID controllers for the class of second-order nonlinear non-stationary objects is proposed. To reduce possible control jumps, its proportional differential components are transferred to the system feedback channel. It is shown that the presence of a special fast response differentiating device in the system generates fast processes against the background of slow operating processes, which are identified using the technique of separation of movements. The controller designed on this basis ensures invariance of the system under external uncontrolled disturbances as well as under a change in the parameters of the object. The results of numerical simulation of the system in MATLAB illustrate its basic properties.

The issues of local navigation of mobile robots are considered. The method of artificial potential fields as a popular method for local navigation of robots is analyzed. The issue of designing attractive potential fields is investigated. The problem of local minima (traps) is discussed. A new method for avoiding obstacles by a robot moving to a target is proposed

A numerical method for designing operating software for digital controllers of hybrid continuous-discrete control systems is considered. The method is based on implementing digital controller control algorithms in the form of rule systems and uses a fuzzy optimization procedure to determine the controller operation rules. The continuous part of hybrid control systems consists of multi-operational process chains, which are nonlinear, multidimensional and multi-loop controlled objects, and the discrete part is digital controllers. The designed digital controllers ensure satisfaction of the most general requirements for controlled processes, including fuzzy ones.

This paper presents a comprehensive simulation model of underground coal mining processes in a fully mechanized long mining face. A number of simulation experiments have been performed. The face performance is estimated as a function of various factors such as the technical parameters of mining machines, length of lava, gas factor, shearer operation process chart, distributed geomechanical characteristics of coal seam.

One method of pulse pressure loading of material or plasma is axisymmetric compression using a convergent cylindrical detonation wave. Such a wave is often formed by multipoint initiation and has a number of specific features that may affect the properties of the objects under study. To solve specific problems, it is proposed to use an explosive laboratory setup based on a converging cylindrical detonation wave with 12-48 initiation points. The TNT equivalent of the charge is less than 1 kg. The main method of research is process visualization using a domestic high-speed Nanogeit camera with a nanosecond time resolution. The structure and velocity of the converging detonation wave along the radius were determined. It is shown that for a charge of limited thickness, the curvature of the detonation wave front for various explosives depends only on the distance to the initiation point.