Філіппова Марина Вячеславівна

Automated Control System for the Drilling Process in Carbon Plastic Parts

V. Antonyuk, S. Vysloukh, M. Filippova, O. Matoshyn, and O. Voloshko, “Automated Control System for the Drilling Process in Carbon Plastic Parts,” Lecture Notes in Electrical Engineering, vol. 1570 LNEE, pp. 289–298, 2026, doi: 10.1007/978-3-032-18415-3_30.

The paper examines how to improve the efficiency of hole machining in components made from polymer composite (carbon-fiber) materials. Building on a review of drilling methods and techniques used for carbon-fiber parts, which provide the specified parameters of surface roughness and delamination, it was found that for this very purpose it is advisable to use automated control of quality parameters in the machining process. A structural block diagram of the automated system has been created as a closed-loop adaptive control scheme, in which real-time surface-quality metrics – roughness and delamination – are inferred from the measured axial cutting force of the workpiece. Measurement of the axial cutting force and adjustment of its values are implemented using a feed that provides the required values of roughness and delamination. In this case, the values of the cutting speed and feed are set as a result of solving the optimization problem for drilling conditions according to the criterion of maximum productivity of the technological process. The information, mathematical and software support of the automated control system has been developed and its necessary technical means have been selected. The system’s performance was assessed through computer modeling that used randomly generated axial forces under multiple drill-point angles and rotation speeds.

Diagnostics of Stress–Strain State of Shaped Profiles of Metal Structures

G. Tymchyk, M. Filippova, M. Demchenko, and R. Segol, “Diagnostics of Stress–Strain State of Shaped Profiles of Metal Structures,” Studies in Systems, Decision and Control, vol. 581, pp. 353–391, 2025, doi: 10.1007/978-3-031-82035-9_10.

The proposed research is devoted to improving the acoustic diagnostic technique for the stress–strain state of metal structures’ shaped profiles. This is carried out using the echo reflection-shadow method of sounding sections of shaped profiles and transducers along their axis. The research develops a methodology for determining the acoustoelastic coupling coefficients for the material of shaped profiles, using the shelf and neutral line sections based on the difference method. The shelf section and neutral line correspond to the stressed and unstressed states of the metal, respectively. The research proposes a scheme for constructing a system for diagnosing the stress–strain state of metal structures’ shaped profiles, analyses it, and justifies the choice of technical means for its implementation. Software for processing and analyzing the results of diagnostics of the strain–stress state of metal structures’ shaped profiles has been developed. An analysis of the influence of the components of the total error on the result of diagnosing the actual mechanical stresses is carried out, and ways to reduce it are substantiated by developing a block of piezoelectric transducers and adjusting the measured time values depending on the ambient temperature. The ultrasonic wave transmission time intervals on the neutral line of shaped profiles are analyzed. The acoustoelastic coupling coefficients for metal structures’ shaped profiles for tensile and compressive stresses are determined. The improved acoustic method is proved to be possible in industrial conditions. A comprehensive methodology for diagnosing the stress–strain state of shaped profiles is proposed, which was used to perform acoustic diagnostics of the stress–strain state of metal structures’ shaped profiles of industrial buildings.

Relationship between the technique of integral equation and Kirchhoff approximation in scalar diffraction theory

G. S. Tymchik et al., “Relationship between the technique of integral equation and Kirchhoff approximation in scalar diffraction theory,” Proceedings of SPIE – The International Society for Optical Engineering, vol. 11456, 2020, doi: 10.1117/12.2569787.

This paper investigates the relationship between the integral equation and Kirchhoff approximation in the diffraction theory of coherent radiance. The spectrum of the reflected wave is formed in the far field (Fraunhofer zone) and the solution is to Fourier transform of effective reflectance coefficient of a surface. In the paper, the analytical relationship between the method of solving an integral equation and the Kirchhoff approximation has been proven. It helps to define the structure of the field of diffracted waves in a Fraunhofer zone for coherent scattered light. The analytical equations for calculation of the average value of intensity scattering field and the mirror reflection coefficient of a rough surface have been obtained. Analysis of the components of the scattering coherent light coming from a metal surface has been improved. It helps to specify the data processing algorithms for evaluation of statistical characteristics of rough surfaces.

The peculiarity of the construction of an optical-electronic system for measurement of geometrical parameters of objects in the micrometer range

O. M. Markina, M. O. Markin, M. V. Filippova, D. Harasim, K. Mussabekov, and A. Annabayev, “The peculiarity of the construction of an optical-electronic system for measurement of geometrical parameters of objects in the micrometer range,” Proceedings of SPIE – The International Society for Optical Engineering, vol. 10445, 2017, doi: 10.1117/12.2280987.

The optical-electronic system for measuring of geometrical parameters of micrometrical objects is a difficult process that requires the observance of certain features designing or improvement. The observance of that will provide a higher measurement accuracy compared with the accuracy metrics of measurement that were developed without compliance with these design features. Every feature of the design reduces the error of the functioning of individual nodes of the system or errors in nodes under the influence of various internal or external factors. When reducing or eliminating each factor of occurrence of the error, respectively, will increase the overall measurement accuracy. In this work, the result of introducing measurement error for each factor is determined experimentally and proved the correctness of such actions. Experimental researches of the measurement error to the stage of compliance with subtleties in the improvement of the opto-electronic system was 10 ± 1.5 μm, and after improvement with considering of the specifics of the design measurement error of geometrical parameters was 10 ± 0,33 μm.

Correcting the position of piezoelectric transducers during acoustic control of the stressed-strained rolled sections

G. Tymchik, M. Filippova, and M. Demchenko, “Correcting the position of piezoelectric transducers during acoustic control of the stressed-strained rolled sections,” Eastern-European Journal of Enterprise Technologies, vol. 5, no. 7-83, pp. 27–33, 2016, doi: 10.15587/1729-4061.2016.79978.

We used the mirror-shadow method for the diagnostics of stressed-strained state of shaped sections of metal structures. It was found that in the course of implementation of this method there may occur an error that is caused by misalignment of measurement with the dimension of acoustic receiving transducer. The work considers the effect of change in the geometry of shaped sections under the action of maximum permissible stress on the displacement of the point at which a beam of ultrasound wave arrives. We examined a question of influence of the slope of inner edge of the shelf of a shaped section on the displacement of the point of ultrasonic wave's arrival sideways from the center of receiving transducer. As a result of analytical studies, it was proved that changing geometric dimensions of control object practically does not affect displacement of the point of arrival of the beam from the center of the receiving transducer. It was found that for a number of shaped sections that have slopes of internal edges of the shelves, it is necessary to introduce correction of position of the receiving transducer relative to the emitting transducer by such parameters as angle and distance relative to the anchor point. Performed research is a prerequisite for the development of design of the block of piezoelectric transducers for implementation of the system of acoustic diagnostics of the strained state of shaped sections.

Selecting photoplethysmogram indicators to monitor adaptation status of a person at magnetic-laser therapy

G. Tymchik, A. Osadchy, M. Filipova, A. Ponomarenko, and A. Stetska, “Selecting photoplethysmogram indicators to monitor adaptation status of a person at magnetic-laser therapy,” Eastern-European Journal of Enterprise Technologies, vol. 2, no. 9, pp. 14–18, 2014, doi: 10.15587/1729-4061.2014.22985.

Magnetic-laser therapy is widely used by doctors for treating many diseases, but there is no single method of evaluating the effectiveness of selected parameters of therapy. A literature review on the presence of similar studies was conducted in the paper, and it was found that photoplethysmographic signal was widely considered, but it had no connection to magnetic-laser therapy. The purpose of this research was to argue the use of photoplethysmography to monitor the adaptation state of the human body. The photoplethysmographic signal parameters were analyzed, and the selection of appropriate parameters to determine the adaptation status of the person was argued. The appropriateness of using qualitative and wave analysis of photoplethysmogram was proved. These developments will enable doctors to conduct magnetic- laser procedures without harmful effects by monitoring the human state in real time.

Monochromatic oscillation generator for novel microwave resonant therapy

A. F. Yanenko, S. N. Matvienko, and M. V. Filippova, “Monochromatic oscillation generator for novel microwave resonant therapy,” CriMiCo 2012 – 2012 22nd International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings, pp. 969–970, 2012.

A monochromatic oscillation generator for microwave resonant therapy is proposed. The proposed device allows one to detect two biologically active points (BAP) on a human body, at which the electromagnetic radiation index is maximum. This device helps to determine the level and frequency of millimeter-wave (MW) range radiation in the process of a treatment procedure. The device is capable of controlling an inter-pulse interval that is coincident with a rate of patients' bio-rhythms. In this case the frequency and modulation signal pauses are controlled. As a result, the treatment efficiency tends to increase and the periods of treatment procedures are reduced.