PULSE PROCESSES OF ENERGY CONVERSION AND METHODS AND TECHNOLOGIES FOR PROCESSING OF NON-METALLIC MATERIALS DEPARTMENT (No. 25)
Doctor of Technical Sciences, Professor,
Hon. of Science and Technology of Ukraine
VOVCHENKO Alexander Ivanovich
+38 (0512) 58-71-25
+38 (0512) 58-71-28
MAIN ACTIVITIES OF THE DEPARTMENT
The study of complex physical phenomena accompanying the pulse energy conversion processes in various condensed media.
Development of scientific and technical bases of methods for processing non-metallic materials by pulse fields and efficient processes for their implementation
SCIENTIFIC PROBLEMS CONSIDERED
Investigation and mathematical modeling of pulse processes in order to create an effective method of controlling these processes to optimize discharge-pulse technologies
Investigation of physical and technical aspects of the development of pulse parametric nonlinear capacitive current generators to implement the pre-programmed time law of current change and in advance of the law of change of on-load current and voltage
Investigation of the effect of pulse action on the stress-strain state of the material of welded joints
Finding ways for intensification of welding of dissimilar metals in a solid state using different pulse influences
Mathematical modeling of pulse energy conversion processes and pulse hydrodynamic effects on condensed media and structural elements
OUR RESEARCH OUTPUT:
As a result of basic research carried out by the department over the past 15 years:
the use of mathematical statistics helped to study the effect of different random stochastic values on the processes of energy transformation at various stages of underwater electrical explosion, the correlations of these values are studied, and the most important factors determining the efficiency of energy conversion are established;
new ways to manage power and electrodynamic characteristics of electrodischarge devices by parametric changes in the process of discharge R of L-discharge circuit elements and the use of multi-circuit capacitive pulse current generators are proposed and implemented.
The block structure of the process of electroexplosive energy conversion
The results allowed us to produce the scientific basis for various technologies protected by patents of Ukraine.
established the basic electromagnetic, electrical and hydrodynamic patterns of electric energy parameters control systems using a high-voltage electro-controlled explosion that allowed the development of a combined energy storage based on high-voltage electrochemical explosion tenfold increase in the specific energy performance;
an original method for solving the fundamental problem of mobile and mobile-permeable boundaries control in the wave equation is further developed, the analytical solutions of inverse problems of wave equations in domains with mobile and mobile-permeable boundaries for the case of a cylindrical extension of a finite length discharge channel in water are obtained;
methods of solving the inverse problems of synthesis and relevant and mathematical models, and methods of calculating the parameters and operating modes of nonlinear, nonlinear parametric and multi-loop capacitive energy storage devices used in discharge-pulse technologies for their optimization are developed.