IMPLEMENTATION OF SOFTWARE SELECTION OF RADIO ELECTRONIC INTELLIGENCE MEANS AT THE STAGE OF ASSESSMENT OF THE SITUATION

The article shows the implementation of the software for the selection of electronic intelligence at the stage of assessing the situation on the basis of theoretical studies conducted by the authors. It is indicated on the basis of which documents the assessment of the situation with the choice of electronic reconnaissance means is carried out, what stages this process consists of, what is needed for the selection of electronic reconnaissance means. The design of information flows of the program for the selection of electronic intelligence means at the stage of assessing the situation with the help of Data Flow Diagrams. The general block diagram of algorithm of work of the software of a choice of means of electronic reconnaissance at a stage of an assessment of a situation is constructed. On the basis of the conducted researches the database for storage of the list of means of electronic reconnaissance is developed. The prototype of the software for the selection of electronic intelligence means at the stage of situation assessment is implemented and examples of work on each of the main blocks are given in the form of screenshots, which were pre-designed in diagrams and block diagrams of algorithms. The advantages and disadvantages of the developed software for the selection of electronic reconnaissance means at the stage of situation assessment are determined. The further steps of research and improvement of the program of a choice of means of radio-electronic intelligence at a stage of an assessment of a situation are specified.

THE PARAMETRIC OSCILLATIONS OF ROTATING ELASTIC RODS UNDER THE ACTION OF THE PERIODIC AXIAL FORCES

The paper presents the results of numerical investigation of the periodic axial forces’ influence on the transverse oscillations of long rotating rods. The gyroscopic inertia forces are taken to account and space oscillating process of rotating rods is considered with account of geometric nonlinearity. The study has been done with computer program with a graphical interface that is developed by authors. The process of numerical solution of the differential equations of oscillations of rotating rods using the method of numerical differentiation of rod’s bend forms by polynomial spline-functions and the Houbolt time integration method is described. A general block diagram of the algorithm is shown. This algorithm describes the process of repeated (cyclical) solving of the system of differential equations of oscillations for every point of mechanical system in order to find the new coordinates of the positions of these points in each next point of time t+∆t. The computer program in which the shown algorithm is realized allows to monitor for the behavior of moving computer model, which demonstrates the process of oscillatory motion in rotation. Moreover, the program draws the graphics of oscillations and changes of angular speeds and accelerations in different coordinate systems. Using this program, the dynamics of a range of objects which are modeled by long elastic rods have been studied. For investigated objects is shown that on various rotational speeds and beat frequencies the oscillatory motion of the rods occurs with different character of behavior. On certain speeds with different frequencies of axial load the oscillations have definite periodicity and occur with beats of amplitude which are the result of the periodic axial force action.

The gyroscopic forces influence on the oscillations of the rotating shafts

The results of numerical investigation of shafts transverse oscillations with account of gyroscopic inertia forces are presented. It is shown what the action and how the gyroscopic forces influence on the transverse oscillations of the shafts during rotation. The study has been done with computer program with a graphical interface that is developed by authors. The process of numerical solution of the differential equations of oscillations of rotating rods using the method of numerical differentiation of rod's bend forms by polynomial spline-functions and the Houbolt time integration method is described. A general block diagram of the algorithm is shown. This algorithm describes the process of repeated (cyclical) solving the system of differential equations of oscillations for every point of mechanical system in order to find the new coordinates of positions of these points in each next point of time t+Dt. The computer program in which the shown algorithm is realized allows to monitor for the behavior of moving computer model, which demonstrates the process of oscillatory motion in rotation. Moreover, the program draws the graphics of oscillations and changes of angular speeds and accelerations in different coordinate systems. Defines the dynamic stability fields and draw the diagrams of found fields. Using this program, the dynamics of a range of objects which are modeled by long elastic rods have been studied. For some objects is shown that on special rotational speeds of shafts with different lengths, in the rotating with shaft coordinate system, the trajectories of center of the section have an ordered character in the form of n-pointed star in time interval from excitation to the start of established circular oscillation with amplitude that harmoniously changes in time. It is noted that such trajectories are fact of the action of gyroscopic inertia forces that arise in rotation.

Theory and design of an experimental intelligent plant for regulating plant productivity

The article proposes to regulate the values of factors affecting the productivity of plants using an artificial intelligence device, the main element of which is a mathematical neuron. The installation is adaptive to the growing area of the investigated plant object. This increases its efficiency and increases the importance of plant productivity. A block diagram of the experimental setup, a general block diagram of the setup control algorithms have been developed, one of the options for using the experimental setup as a research system for identifying the most significant combinations of factors affecting plant productivity has been considered. To identify the most significant combinations of factors, algorithms based on generalized training algorithms for the Hebb neural network model were used, and a study was made of a model of an installation of four inputs with sigmoidal transfer functions.

Optimum Load Allocation in Cogeneration Gas-Steam Combined Plants

A procedure to optimize operations has been developed for cogeneration systems based on gas, steam and gas-steam combined cycles. Component statuses recognition by monitoring data and cost accounting technique have been taken into consideration. An objective function including components and machinery operational and availability costs has been selected. To search the minimum of such a function a simultaneous solution method with modular plant description has been adopted. The objective function is related to economic-functional models of the various components and to the boundary conditions expressing the ambient, power and heat loads. Test prototypes have shown the capability to achieve the optimum load allocation. The paper discusses the general block diagram of the system together with an application to an industrial cogeneration plant. Optimized operations are analyzed and discussed.