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³äá³ð ³ îáðîáêà ³íôîðìàö³¿, ¹44(120), 2016


ÀÍÎÒÀÖ²¯

ÏÎËß ÒÀ ÑÈÃÍÀËÈ Ó ÍÅÎÄÍÎвÄÍÈÕ ÑÅÐÅÄÎÂÈÙÀÕ

ÓÄÊ 621.794
Â. Ð. Ñêàëüñüêèé, ª. Ï. Ïî÷àïñüêèé, Á. Ï. Êëèì, ². Ì. Êîáëàí
ϲÄÂÈÙÅÍÍß ÅÔÅÊÒÈÂÍÎÑÒ² ÇÁÓÄÆÅÍÍß ÑÈÃÍÀ˲ ÌÀÃÍÅÒÎÏÐÓÆÍί ÀÊÓÑÒÈ×Íί Å̲Ѳ¯
Ô³çèêî-ìåõàí³÷íèé ³íñòèòóò ³ì. Ã. Â. Êàðïåíêà ÍÀÍ Óêðà¿íè
E-mail: skal@ipm.lviv.ua, pochapskyy@ipm.lviv.ua, klym@ipm.lviv.ua

Äëÿ ï³äâèùåííÿ òî÷íîñò³ ä³àãíîñòóâàííÿ ôåðîìàãíåòíèõ åëåìåíò³â êîíñòðóêö³é ìåòîäîì ìàãíåòîïðóæíî¿ àêóñòè÷íî¿ åì³ñ³¿ çàïðîïîíîâàíî ñòðóêòóðè ñèñòåì çáóäæåííÿ ñèãíàëó, ÿê³ çàáåçïå÷óþòü ñòàá³ëüí³ñòü òà ð³âí³ñòü íàïåðåä çàäàíîìó çíà÷åííþ àìïë³òóäè ñòðóìó ïåðåìàãíå÷åííÿ ÷è ³íäóêö³¿ çáóäæóâàëüíîãî ìàãíåòíîãî ïîëÿ. Ïðîàíàë³çîâàíî ôóíêö³îíóâàííÿ ñèñòåì òà îö³íåíî ¿õ äèíàì³÷í³ âëàñòèâîñò³. Êëþ÷îâ³ ñëîâà: ôåðîìàãíåòíèé ìàòåð³àë, ìàãíåòîïðóæíà àêóñòè÷íà åì³ñ³ÿ (MAE), íåìàãíåòíèé ïðîøàðîê, íàêëàäíèé åëåêòðîìàãíåò, ñèñòåìà çáóäæåííÿ ñèãíàëó MAE. 

V. R. Skalskyi, Ye. P. Pochapskyy, Â. P. Klym, I. M. Koblan
IMPROVING EXCITATION EFFICIENCY OF MAGNETOELASTIC ACOUSTIC EMISSION SIGNALS
H. V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine

To increase the accuracy of diagnosis of ferromagnetic structural elements with magnetoelastic acoustic emission method the structure of signal excitation is proposed, providing stability and equality to predetermine the value of current amplitude magnetization or induction exciting magnetic field. The structures are implemented in the form of system of automatic stabilization, the main elements of which are adjustable signal generator, measuring unit current amplitude or induction and circle of negative feedback. The analysis of the operation and the estimation of their dynamic properties are presented. Obtained results depend on the number of steps of iterative process of a target setting relative error value of current or induction for certain values of the parameters defined by the design features of stabilization system. The simulation results show that the proposed system provides good quality transients and in the steady state the target value is maintained at a given level without error. Keywords: ferromagnetic material, magnetoelastic acoustic emission (MAE), nonmagnetic layer, U-core magnet, excitation system of MAE signal.

ÓÄÊ 538.3:550.372:620.1:621.6
Ð. Ì. Äæàëà, Á. ß. Âåðáåíåöü, Ì. ². Ìåëüíèê
ÂÏËÈ ÅËÅÊÒÐÎÔ²ÇÈ×ÍÈÕ ÏÀÐÀÌÅÒв ÑÅÐÅÄÎÂÈÙÀ ÍÀ ªÌͲÑÒÜ ÌÅÒÀËÅÂÎÃÎ ÖÈ˲ÍÄÐÀ Ç ²ÇÎËßÖ²ªÞ
Ô³çèêî-ìåõàí³÷íèé ³íñòèòóò ³ì. Ã. Â. Êàðïåíêà ÍÀÍ Óêðà¿íè
E-mail: dzhala@ipm.lviv.ua

Íà îñíîâ³ ðîçâ’ÿçêó êðàéîâî¿ çàäà÷³ åëåêòðîäèíàì³êè äëÿ ìåòàëåâîãî öèë³íäðà ç ³çîëÿö³éíèì øàðîì â åëåêòðîïðîâ³äíîìó ñåðåäîâèù³ âèâåäåíî ôîðìóëè êîìïîíåíò ïîëÿ îñíîâíî¿ êâàç³-ÒÅÌ õâèë³ ³ åôåêòèâíî¿ ºìíîñò³ ñòðóêòóðè. Âèêîðèñòàíî òåîðåìó Ãàóñà. Ðîçðàõîâàíî çàëåæíîñò³ åôåêòèâíî¿ ºìíîñò³ â³ä ÷àñòîòè ïîëÿ, åëåêòðîïðîâ³äíîñò³ ñåðåäîâèùà ³ ïðîâ³äíîñò³ ³çîëÿö³¿ ï³äçåìíîãî òðóáîïðîâîäó. Âèÿâëåíî, ùî çà íèçüêèõ åëåêòðîïðîâ³äíîñò³ ñåðåäîâèùà ³ ÷àñòîòè ïîëÿ ôîðìóëà ºìíîñò³ êîàêñ³àëüíîãî êàáåëþ íåïðàâîì³ðíà. Êëþ÷îâ³ ñëîâà: ºìí³ñòü, ³çîëüîâàíèé öèë³íäð, åëåêòðîìàãíåòíå ïîëå, ÷àñòîòà, êîàêñ³àëüíèé êàáåëü, ï³äçåìíèé òðóáîïðîâ³ä, ïðîâ³äí³ñòü ñåðåäîâèùà.

R. M. Dzhala, B. Ya. Verbenets, M. I. Melnyk
ELECTRIC CAPACITY OF METAL CYLINDER WITH AN INSULATING LAYER IN CONDUCTIVE MEDIUM
H. V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine

The electrical capacity of structural elements is needed to research the characteristics of electromagnetic field parameters for nondestructive testing and diagnosing technical condition. In theory guiding systems, screening, examinations of underground pipeline capacity formula for coaxial condenser of ideal design is often used. On the basis of the solution of the boundary problem of electro-dynamics for a metal cylinder with an insulating layer in electroconductive medium formulas of field components of quasi-TEM wave and the effective capacity of the structure are received. Gaussian theorem is used. Calculation of the effective capacity depending on the field frequency, electrical conductivity of environment and insulation for underground pipeline are calculated. It is shown that at low environment conductivity and low field frequency using coaxial cable formula is not cored. When calculating the capacity of the metal structure with the insulating cover in low conductivity medium and at low frequencies the capacity formula, based on calculations of the electrostatic field charged body should not be applied. We must use solutions based on electrodynamic problem taking into account the relationship between the frequency of the field distribution of frequency. Keywords: capacity, insulated cylinder, electromagnetic field, frequency, coaxial cable, underground pipeline, conductivity environment.



ÌÀÒÅÌÀÒÈ×Ͳ ÌÎÄÅ˲ ÑÈÃÍÀ˲ ÒÀ ÑÈÑÒÅÌ

ÓÄÊ 621.391:519.22
Ð. Ì. Þçåôîâè÷, ². Ì. ßâîðñüêèé, ². É. Ìàöüêî, Ï. Î. Ñåìåíîâ
ÂÈÇÍÀ×ÅÍÍß ÏÎÊÎÌÏÎÍÅÍÒÍί ÔÓÍÊÖ²¯ ÊÎÃÅÐÅÍÒÍÎÑÒ² ÂÇÀªÌÎÇÂ’ßÇÀÍÈÕ ÏÅвÎÄÈ×ÍÎ ÍÅÑÒÀÖ²ÎÍÀÐÍÈÕ ÂÈÏÀÄÊÎÂÈÕ ÑÈÃÍÀ˲Â
Ô³çèêî-ìåõàí³÷íèé ³íñòèòóò ³ì. Ã. Â. Êàðïåíêà ÍÀÍ Óêðà¿íè
²íñòèòóò òåëåêîìóí³êàö³¿ Òåõíîëîã³÷íî-ïðèðîäíè÷îãî óí³âåðñèòåòó, Áèäãîù, Ïîëüùà
Òîâàðèñòâî ç îáìåæåíîþ â³äïîâ³äàëüí³ñòþ “ÏÎÐÒÒÅÕÅÊÑÏÅÐÒ”
E-mail: roman.yuzefovych@gmail.com, matskoivan@gmail.com

Ïðîàíàë³çîâàíî âëàñòèâîñò³ ôóíêö³¿ êîãåðåíòíîñò³ âçàºìîçâ’ÿçàíèõ ïåð³îäè÷íî íåñòàö³îíàðíèõ âèïàäêîâèõ ñèãíàë³â, ñôîðìîâàíî¿ íà îñíîâ³ ñïåêòðàëüíèõ õàðàêòåðèñòèê ñòàö³îíàðíèõ âèïàäêîâèõ ïðîöåñ³â, ÿê³ ìîäóëþþòü ¿õ íåñó÷³ ãàðìîí³êè. Ðîçãëÿíóòî ìåòîä ¿¿ îá÷èñëåííÿ, ÿêèé ãðóíòóºòüñÿ íà âèä³ëåíí³ òàêèõ ïðîöåñ³â çà äîïîìîãîþ â³äïîâ³äíîãî ïåðåíîñó ÷àñòîò ³ íèçüêî÷àñòîòíî¿ ô³ëüòðàö³¿. Ìåòîä âåðèô³êîâàíî íà îñíîâ³ ñèìóëüîâàíèõ íà êîìï’þòåð³ ìîäóëüîâàíèõ ñèãíàë³â. Êëþ÷îâ³ ñëîâà: ïåð³îäè÷íî íåñòàö³îíàðí³ âèïàäêîâ³ ñèãíàëè, ñòàö³îíàðí³ êîìïîíåíòè, ïîêîìïîíåíòíà ôóíêö³ÿ êîãåðåíòíîñò³, ìîäóëüîâàí³ ñèãíàëè. 

R. M. Yuzefovych, I. M. Javorskyj, I. Y. Matsko, P. O. Semenov
ESTIMATION OF COMPONENT-WISE COHERENCE FUNCTION FOR JOINT PERIODICALLY CORRELATED RANDOM SIGNALS
H. V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine
Telecommunication Institute of University of Technology and Life Science, Bydgoszcz, Poland
Limited liability company “PORTTECHEXPERT”

The analysis of properties of coherence function for joint periodically correlated random signals, formed on the base of spectral characteristics of stationary random processes, which modulate their career harmonics, is provided. The method of its estimation based on the separation of such processes using respective frequency translation and low frequency filtration is considered. Verification of such a method is provided on the base of computer simulated modulated processes. Formulas for estimation of the component-wise coherence function are proposed. The scheme of component-wise coherence function calculation is given. It is shown that coherence function tends to zero rapidly if damping coefficients are small and increase of damping coefficients leads to frequency domain widening where properties of nonstationarity of the one signal affect the properties of nonstationarity of the other signal. Keywords: periodically nonstationary random signals, stationary components, componentwise coherence function, modulated signals.


ÓÄÊ 519.248
Ò. Î. Ñòåôàíîâè÷, Ñ. Â. Ùåðáîâñüêèõ
ÌÎÄÅËÜ ÍÀIJÉÍÎÑÒ² ÄËß ÀÍÀ˲ÇÓ ÏÐÈ×ÈÍ ÍÅÏÐÀÖÅÇÄÀÒÍÎÑÒ² ÑÈÑÒÅÌÈ ²Ç ÏÅÐÅÄÀÂÀÍÍßÌ ÔÓÍÊÖ²É Ì²Æ ÎÄÍÎÒÈÏÍÈÌÈ ÌÎÄÓËßÌÈ 
Íàö³îíàëüíèé óí³âåðñèòåò “Ëüâ³âñüêà ïîë³òåõí³êà”
E-mail: stefanovych@lp.edu.ua, shcherbov@lp.edu.ua

Çàïðîïîíîâàíî ìàòåìàòè÷íó ìîäåëü íàä³éíîñò³ ñèñòåìè ³ç ïåðåäàâàííÿì ôóíêö³é ì³æ îäíîòèïíèìè ìîäóëÿìè, ÿêà àäåêâàòíî âðàõîâóº âïëèâ êîåô³ö³ºíòà íàâàíòàæåííÿ äëÿ åëåìåíòà, ÿêèé ç’ºäíóº îäíîòèïí³ ìîäóë³, íà éìîâ³ðí³ñí³ õàðàêòåðèñòèêè ïðè÷èí íåïðàöåçäàòíîñò³ ñèñòåìè. Äëÿ âèçíà÷åííÿ õàðàêòåðèñòèê íàä³éíîñò³ çàñòîñîâàíî äèíàì³÷íå äåðåâî â³äìîâ òà ìàðêîâñüêó ìîäåëü. Êëþ÷îâ³ ñëîâà: ìîäåëü íàä³éíîñò³, äèíàì³÷íå äåðåâî â³äìîâ, ìàðêîâñüêà ìîäåëü, ïðè÷èíà íåïðàöåçäàòíîñò³, ðåçåðâóâàííÿ.

T. O. Stefanovych, S. V. Shcherbovskykh
RELIABILITY MODEL FOR FAILURE CAUSE ANALYSIS OF A SYSTEM WITH FUNCTION TRANSFERING BETWEEN UNIFORM MODULUS
Lviv Polytechnic National University

The mathematical reliability model for system with function transferring between uniform modulus is proposed. Function transferring is used for system reliability improving. The model is formed for failure cause analysis of such system. The reliability is formalized based on dynamic fault tree. Special repeater gate block is used for load-sharing condition definition. In particular, the gate block provides adequately taking into account load-sharing processes for connecting component that is installed between uniform modulus. For failure cause characteristics calculation dynamic fault tree is transformed to Markov model. The Markov model is created based on tensor formulas that taking into account component life distributed by Weibull. Using the simulation results failure cause priority is determined. Keywords: reliability model, dynamical fault tree, Markov model, failure cause, redundancy.



ÎÁÐÎÁÊÀ ÂÈ̲ÐÞÂÀËÜÍί ²ÍÔÎÐÌÀÖ²¯

ÓÄÊ 551.568.85
Á. Ï. Êîìàí
ÀÂÒÎÌÀÒÈÇÎÂÀÍÈÉ ÊÎÌÏËÅÊÑ ÄËß ÄÎÑ˲ÄÆÅÍÍß ÏÀÐÀÌÅÒв ÅËÅÊÒÐÎÀÊÒÈÂÍÈÕ ÖÅÍÒÐ²Â Ó ÒÂÅÐÄÈÕ Ò²ËÀÕ Ç ÂÈÊÎÐÈÑÒÀÍÍßÌ ÌÅÒÎÄÈÊÈ ÒÅÐÌÎÑÒÈÌÓËÜÎÂÀÍί ÄÅÏÎËßÐÈÇÀÖ²¯
Ëüâ³âñüêèé íàö³îíàëüíèé óí³âåðñèòåò ³ìåí³ ²âàíà Ôðàíêà
E-mail: sonce_28@ukr.net

Íà áàç³ ïåðñîíàëüíîãî êîìï’þòåðà ðîçðîáëåíî àâòîìàòèçîâàíèé êîìïëåêñ äëÿ äîñë³äæåííÿ ïàðàìåòð³â åëåêòðîàêòèâíèõ öåíòð³â ó âèñîêîîìíèõ íàï³âïðîâ³äíèêàõ òà ä³åëåêòðèêàõ ç âèêîðèñòàííÿì ìåòîäèêè òåðìîñòèìóëüîâàíî¿ äåïîëÿðèçàö³¿ (ÒÑÄ). Ðîçðîáëåíå îðèã³íàëüíå ïðîãðàìíå çàáåçïå÷åííÿ äຠçìîãó ïîâí³ñòþ àâòîìàòèçóâàòè ïîëÿðèçàö³þ òà äåïîëÿðèçàö³þ çðàçêà ó âñòàíîâëåíîìó òåìïåðàòóðíîìó ä³àïàçîí³, éîãî íàãð³â ç³ çàäàíîþ øâèäê³ñòþ, âèì³ðþâàííÿ ç âèñîêîþ òî÷í³ñòþ ñòðóì³â ÒÑÄ òà çä³éñíþâàòè ê³ëüê³ñíó îö³íêó ïàðàìåòð³â öåíòð³â: ÷àñòîòíîãî ôàêòîðà, åíåðã³þ àêòèâàö³¿ òà ãóñòèíó åëåêòðîííèõ ñòàí³â, çóìîâëåíèõ äåôåêòàìè ñòðóêòóðè. Êëþ÷îâ³ ñëîâà: òåðìîñòèìóëüîâàíà äåïîëÿðèçàö³ÿ, ïàðàìåòðè öåíòð³â, òåðìîðåãóëÿòîð, åëåìåíòàðíèé ï³ê, ð³âíÿííÿ Ôðåäãîëüìà.

Â. P. Koman
AUTOMATED COMPLEX FOR RESEARCH OF ELECTROACTIVE CENTERS IN SOLIDS USING THE TECHNIQUE OF THERMALLY STIMULATED DEPOLARIZATION
Ivan Franko National University of Lviv

The PC-based automated measuring system is developed for the study of thermostimulated depolarization processes in semiconductors and high-resistivity structures that can automate the process of measurement; record currents caused by the nonequilibrium relaxation in the current range of KT4...1(T13A; maintain the constant temperature in the sample polarization or change it for a specific law; obtain experimental results and quantitative information on the energy centers of the parameters responsible for TSD processes. The energy spectrum of defects quantitatively analyzed the function of the density of states g(E, co), derived from experimental curves of current TSD j(T) route from the solutions of Fredholm integral equation of the 1st kind, describing the process in disordered dielectrics with quasi-continuous energy spectrum electrically-active defects. This problem is incorrect by Adamar. So to solve this problem the approach developed by Tikhonov for problems of this class are used. The program for the integrated treatment of experimental curves of thermal stimulated depolarization currents is implemented in the system of visual object-oriented programming C ++ Builder 5. It allows us to develop a flexible and fast algorithm with dynamic allocation memorization that is necessary for the implementation of iterative methods. To determine the activation energy as a basis, the original recovery method (Garlick-Gibson) is used, because it provides a relatively small error (about 2.3%). Keywords: thermoinduced depolarization, parameters centers, thermostat, elementary peak, Fredholm equation.

ÓÄÊ 535.361: 620.186
². Á. ²âàñ³â
ÎÖ²ÍÊÀ ÐÎÇ̲в ÊÎÐÎDzÉÍÈÕ ÂÈÐÀÇÎÊ ÇÀ ÊÐÈÒÅвªÌ ÃËÀÄÊÎÑÒ² ÎÁ²ÄÍί ÑÈÃÍÀËÓ ÑÅÍÑÎÐÀ ÄÈÔÓÇÍÎÃΠ²ÄÁÈÂÀÍÍß Ñ²ÒËÀ
Ô³çèêî-ìåõàí³÷íèé ³íñòèòóò ³ì. Ã. Â. Êàðïåíêà ÍÀÍ Óêðà¿íè
E-mail: greg@ipm.lviv.ua

Çàïðîïîíîâàíî ìåòîä îö³íþâàííÿ ðîçì³ð³â òî÷êîâèõ êîðîç³éíèõ ì³êðîäåôåêò³â ìåòàëåâèõ ïîâåðõîíü íà îñíîâ³ àíàë³çó äðóãî¿ ïîõ³äíî¿ ñèãíàëó ïðèçìàòè÷íîãî ñåíñîðà äèôóçíîãî â³äáèâàííÿ ñâ³òëà, çîêðåìà êðèòåð³¿â ãëàäêîñò³, ÿê³ áàçóþòüñÿ íà íîðìàõ ö³º¿ ïîõ³äíî¿. Ïîêàçàíî, ùî ó ä³àïàçîíàõ ðîçì³ð³â ì³êðîäåôåêò³â 2...8 ìêì òà 6... 12 ìêì çàëåæí³ñòü çàïðîïîíîâàíèõ êðèòåð³¿â â³ä ðîçì³ðó áëèçüêà äî ë³í³éíî¿. Êëþ÷îâ³ ñëîâà: êîðîç³éí³ âèðàçêè, îö³íþâàííÿ ðîçì³ð³â, îïòè÷íèé ñåíñîð, äèôóçíå â³äáèâàííÿ ñâ³òëà, ìîäåëþâàííÿ, ñèãíàë, êðèòå𳿠ãëàäêîñò³.

I. B. Ivasiv
CORROSION POINTS SIZING BY SMOOTHNESS CRITERION FOR SIGNAL ENVELOPE OF LIGHT DIFFUSE REFLECTION SENSOR
H. V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine

The method of sizing the corrosion point microdefects for metal surfaces is proposed on the base of the signal of the prismatic sensor of diffuse light reflection. Based on differential formulae the second derivatives of modelled signal are analysed. It is shown that these derivatives behaviour depends on the microdefects sizes more obviously. In particular, the several smoothness criteria based on the Euclidian, square Euclidian norms for the second derivatives as well as on the inversed norms are proposed. These criteria showed the unambiguous dependence on the size of corrosion microdefects and even near linear dependences within 2... 8 pm subrange for the quadratic Euclidian norm criterion and within 6... 12 pm subrange for the inverse Euclidian norm criterion. Keywords: corrosion points, sizing, optical sensor, diffuse light reflection, modelling, signal, smoothness criteria.

ÓÄÊ 519.6
À. Ë. ªðîõ³í, Ã. À. Çàöåðêëÿíèé
ÀÍÀË²Ç ÒÅÏËÎÌÀÑÎÎÁ̲ÍÓ Â ÏÐÈ̲ÙÅÍͲ ÁÓIJÂ˲
Õàðê³âñüêèé íàö³îíàëüíèé óí³âåðñèòåò ðàä³îåëåêòðîí³êè
E-mail: andriy.yerokhin@nure.ua, george.zatserklyany@gmail.com

Çàïðîïîíîâàíî ³íôîðìàö³éíó òåõíîëîã³þ àíàë³çó êîíâåêòèâíîãî òåïëîîáì³íó â ïðèì³ùåíí³ áóä³âë³ â íàáëèæåíí³ íåñòàö³îíàðíîãî òðèâèì³ðíîãî òóðáóëåíòíîãî ïîòîêó äâîêîìïîíåíòíî¿ ïàðîïîâ³òðÿíî¿ ñóì³ø³ çà íàÿâíîñò³ âíóòð³øí³õ äæåðåë ³ ñòîê³â åíåð㳿. Êëþ÷îâ³ ñëîâà: ³íôîðìàö³éíà òåõíîëîã³ÿ, ìîäåëü, íåñòàö³îíàðí³é òðèâèì³ðíèé òóðáóëåíòíèé ðóõ, ïàðîïîâ³òðÿíà ñóì³ø.

A. L. Yerokhin, H. A. Zatserklyanyi
HEAT AND MASS EXCHANGE ANALYSIS INDOORS
Kharkiv National University of Radio Electronics

The information technology of convective heat exchange analysis indoors within the limits of a non-stationary three-dimensional turbulent flow of two-component steam-air mixture in the presence of internal sources and sinks of energy is proposed. Turbulence modeling is based on a Menter’s SST-model, which is a combination of known k-c and k-oi models. In this case we use several types of boundary conditions, including permeable boundary conditions within the calculated area (input and output), boundary conditions on a solid impermeable wall, boundary conditions of symmetry, periodic boundary conditions. For numerical implementation of convective heat and mass exchange indoors we use the finite volumes method. Keywords: model, non-stationary three-dimensional turbulent flow, steam-air mixture.



ÎÁÐÎÁÊÀ ÇÎÁÐÀÆÅÍÜ ÒÀ ÐÎÇϲÇÍÀÂÀÍÍß ÎÁÐÀDzÂ

ÓÄÊ 681.7: 621.396
Î. Ï. Ìàêñèìåíêî
ÇÀÑÒÎÑÓÂÀÍÍß ÏÅÐÅÒÂÎÐÅÍÍß ÔÓÐ’ª-ÌÅ˲ÍÀ ÄËß ÖÈÔÐÎÂί ÊÎÐÅËßÖ²ÉÍί ÎÁÐÎÁÊÈ ÑÏÅÊË-ÇÎÁÐÀÆÅÍÜ
Ô³çèêî-ìåõàí³÷íèé ³íñòèòóò ³ì. Ã. Â. Êàðïåíêà ÍÀÍ Óêðà¿íè
E-mail: maksymenko@ipm.lviv.ua

Çàïðîïîíîâàíî àëãîðèòì äëÿ ðîçðàõóíêó â³äíîñíîãî ïîâîðîòó, çì³ùåííÿ òà çì³íè ìàñøòàáó ñïåêë-çîáðàæåíü, ÿê³ âèêîðèñòîâóþòü ï³ä ÷àñ äîñë³äæåíü äåôîðìàö³é ïîâåðõí³ åëåìåíò³â êîíñòðóêö³é. Àëãîðèòì ïîáóäîâàíî íà îñíîâ³ ëîã-ïîëÿðíîãî ïåðåòâîðåííÿ Ôóð’º- Ìåë³íà. Ðîçðàõîâàí³ âåëè÷èíè âèçíà÷àþòü ïðîñòîðîâ³ ïåðåì³ùåííÿ êîíòðîëüîâàíî¿ ïîâåðõí³ ³ âèêîðèñòîâóþòü â ïîäàëüøîìó äëÿ êîðåêö³¿ çàðåºñòðîâàíèõ ñïåêë-çîáðàæåíü ç ìåòîþ îòðèìàííÿ ä³éñíèõ äåôîðìàö³é òà ïåðåì³ùåíü êîíòðîëüîâàíî¿ ïîâåðõí³. Êëþ÷îâ³ ñëîâà: öèôðîâà êîðåëÿö³ÿ çîáðàæåíü, ïîã-ïîëÿðíå ïåðåòâîðåííÿ Ôóð'º-Ìåë³íà, äåôîðìàö³ÿ ïîâåðõí³, ìàñøòàá çîáðàæåííÿ, çñóâ òà ïîâîðîò çîáðàæåííÿ.

Î. P. Maksymenko
USING THE FOURIER-MELLIN TRANSFORM FOR DIGITAL SPECKLE IMAGES CORRELATION
H. V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine

Significant errors occur when 2D digital image correlation (DIC) is used for assessment of the moving object deformation. Algorithm for calculating the value of relative rotation, displacement, and scaling of the speckle images based on log-polar Fourier-Mellin transform is proposed. The values obtained by this algorithm show the displacement of the controlled object in the surface plane and then they are used for correction of the registered speckle images, so the real deformations and displacements of the surface are obtained. During realization of this algorithm, the cross-correlation in the spectral plane (CCSP) is used to compare the speckle images. The CCSP algorithm allowed us to reduce essentially the time needed for the correction values assessment. Keywords: digital image correlation, Fourier-Mellin log-polar transform, surface deformation, the image scale, translation and rotation of the image.

ÓÄÊ 681.7: 621.396
Î. Ï. Ìàêñèìåíêî
ÀÍÀË²Ç ÏÎÕÈÁÎÊ ÃÅÎÌÅÒÐÈ×Íί ÊÎÐÅÊÖ²¯ ÑÏÅÊË-ÇÎÁÐÀÆÅÍÜ ÍÀ ÎÑÍβ ÏÅÐÅÒÂÎÐÅÍÍß ÔÓÐ’ª-ÌÅ˲ÍÀ
Ô³çèêî-ìåõàí³÷íèé ³íñòèòóò ³ì. Ã. Â. Êàðïåíêà ÍÀÍ Óêðà¿íè
E-mail: maksymenko@ipm.lviv.ua

Ïðîàíàë³çîâàíî ïîõèáêè, ÿê³ âèíèêàþòü ï³ä ÷àñ âèçíà÷åííÿ ïàðàìåòð³â â³äíîñíèõ ãåîìåòðè÷íèõ òðàíñôîðìàö³é ñïåêë-çîáðàæåíü, òà ïîêàçàíî ¿õ âïëèâ íà òî÷í³ñòü âñòàíîâëåííÿ ä³éñíèõ äåôîðìàö³é ïîâåðõí³. Îòðèìàíî àíàë³òè÷í³ âèðàçè äëÿ îö³íþâàííÿ ïîõèáîê òà øëÿõîì êîìï’þòåðíîãî ìîäåëþâàííÿ ïîêàçàíî ñïðàâåäëèâ³ñòü òàêèõ îö³íîê. Äëÿ êðàùîãî âèÿâëåííÿ ³íôîðìàòèâíîãî êðîñ-êîðåëÿö³éíîãî ï³êà çàïðîïîíîâàíî âèêîðèñòîâóâàòè âèñîêî÷àñòîòíó ô³ëüòðàö³þ ñïåêòðàëüíèõ àìïë³òóä ïåðåä ëîã-ïîëÿðíèì ïåðåòâîðåííÿì. Êëþ÷îâ³ ñëîâà: öèôðîâà êîðåëÿö³ÿ çîáðàæåíü, ëîã-ïîëÿðíå ïåðåòâîðåííÿ Ôóð’º-Ìåë³íà, îö³íêà ïîõèáîê, ãåîìåòðè÷íà êîðåêö³ÿ ñïåêë-çîáðàæåíü.

Î. P. Maksymenko
ANALYSIS OF THE ERRORS OF GEOMETRICAL CORRECTION OF SPECKLE IMAGES BASED ON FOURIER-MELLIN TRANSFORM
H. V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine

The errors of an algorithm then determining parameters of the relative geometric transformations of the speckle images, based on log-polar Fourier Melina transform are analyzed. The analytical expressions for estimation of the errors in determining the relativity rotation and scaling are proposed. The computer simulation based on speckle images modeling confirms the validity of the proposed analytical expressions. Results presented in this paper show the linearity of the relativity rotation angle error and is inversely proportional to the size of the speckle image, while the error set of the scale is nonlinear. For reliable detection of the informative conelation peak, the high-frequency filtering of the spectrum amplitude of the speckle image, before the log-polar transform is used. The results obtained in the work allow assessing the enors which arise when the geometrical transformations of speckle images are present and its influence on the accuracy of the actual deformation fields calculated after correction of the transformation of speckle images. Keywords: digital image correlation, Fourier-Mellin log-polar transform, errors estimation, geometrical correction of speckle-images.

ÓÄÊ 620.179
². Á. ²âàñåíêî
ÂÈÇÍÀ×ÅÍÍß ÐÎÇ̲в ÍÅÏÐÎÂÀв ÍÀ ÎÖÈÔÐÎÂÀÍÈÕ ÐÅÍÒÃÅÍÎÃÐÀÌÀÕ ÇÂÀÐÍÈÕ Ø²Â
Ô³çèêî-ìåõàí³÷íèé ³íñòèòóò ³ì. Ã. Â. Êàðïåíêà ÍÀÍ Óêðà¿íè
E-mail: ivasenko@ipm.lviv.ua

Çàïðîïîíîâàíî ìåòîä âèçíà÷åííÿ ãåîìåòðè÷íèõ ðîçì³ð³â íåïðîâàð³â. Äëÿ öüîãî ëîêàë³çîâàíî êàíàâêîâèé åòàëîí ÷óòëèâîñò³, îö³íåíî ãëèáèíó ïåðåïàä³â êàíàâîê ó ð³âíÿõ ñ³ðîãî, âèçíà÷åíî ïàðàìåòð íåð³çêîñò³ çîáðàæåííÿ. Ñåãìåíòîâàíî íåïðîâàðè â çîí³ çâàðíîãî øâà, âèçíà÷åíî ¿õ ðîçì³ðè çà åòàëîíîì ÷óòëèâîñò³. Ìåòîä àïðîáîâàíî íà ðåàëüíèõ çîáðàæåííÿõ çâàðíèõ øâ³â. Êëþ÷îâ³ ñëîâà: çâàðí³ øâè, äåôåêòè, îáðîáêà çîáðàæåíü, ñåãìåíòàö³ÿ.

I. B. Ivasenko
DETERMINING THE GEOMETRIC DIMENSIONS OF LACK OF PENETRATION ON DIGITAL RADIOGRAPHIC IMAGES OF WELDED JOINTS
H. V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine

Radiographic control of joint welds is often used to test the quality of oil and gas pipelines, technological and industrial pipes. The problem of automatic welding quality control is still not fully solved. The method of determining the geometric dimensions of lack of penetration on scanned X-ray films of tubes is proposed. For this aim, we locate the groove-type standard, estimate the groove depth in gray levels and determine the image blur parameter. Then we divide the lacks of penetration in the weld zone using superposition of single-scale implementations of retinex on the basis of local smoothing, evaluate defects size and depth by the groove-type standard. The method was tested on real images of welded joints and compared with measurements by a cathetometer. Keywords: weld joints, defects, image processing, segmentation.

ÓÄÊ 004.932
Î. Ð. Áåðåãóëÿê, Ð. À. Âîðîáåëü
ÂÈвÂÍÞÂÀÍÍß ÎѲÒËÅÍÎÑÒ² ÎÁ’ªÊҲ ÑÖÅÍÈ Ç ÂÈÊÎÐÈÑÒÀÍÍßÌ ËÎÃÀÐÈÔ̲×ÍÎÃÎ ÏÅÐÅÒÂÎÐÅÍÍß
Ô³çèêî-ìåõàí³÷íèé ³íñòèòóò ³ì. Ã. Â. Êàðïåíêà ÍÀÍ Óêðà¿íè
E-mail: oberehulyak@ipm.lviv.ua, roman.vorobel@gmail.com

Ïðîàíàë³çîâàíî ïðîáëåìó âèð³âíþâàííÿ îñâ³òëåíîñò³ îá’ºêò³â íà çîáðàæåíí³ ñöåíè. Âèÿâëåíî, ùî ìîæëèâèì ¿¿ ðîçâ’ÿçêîì º çàñòîñóâàííÿ îäíîìàñøòàáíîãî ðåòèíåêñó, çàïî÷àòêîâàíîãî â ïðàöÿõ Å. Ëåíäà. Îïèñàíî áàçîâó ìîäåëü îäíîìàñøòàáíîãî ðåòèíåêñó. Ïîêàçàíî, ùî â éîãî îñíîâ³ - ³íâåðñ³ÿ â³äíîñíîãî ëîêàëüíîãî êîíòðàñòó. Äëÿ çàáåçïå÷åííÿ ìîæëèâîñò³ âèáîðó îïòèìàëüíîãî çà ðîçð³çíåííÿì ðåçóëüòóþ÷îãî çîáðàæåííÿ ïîáóäîâàíî ïàðàìåòðè÷íó ìîäåëü âèð³âíþâàííÿ îñâ³òëåíîñò³, ÿêà ´ðóíòóºòüñÿ íà ëîãàðèôì³÷íîìó ïåðåòâîðåíí³ ³íâåðñ³¿ çâàæåíîãî êîíòðàñòó. Íàâåäåíî ðåçóëüòàòè îïðàöþâàííÿ ñèíòåçîâàíîãî çîáðàæåííÿ. Ïðî³ëþñòðîâàíî ê³ëüê³ñíèé âèá³ð îïòèìàëüíî ïåðåòâîðåíîãî çîáðàæåííÿ çà îçíàêîþ á³ëüøîãî ðîçð³çíåííÿ äåòàëåé ó âñüîìó ä³àïàçîí³ ³íòåíñèâíîñòåé. Êëþ÷îâ³ ñëîâà: îïðàöþâàííÿ çîáðàæåíü, ðåòèíåêñ, ëîãàðèôì³÷íå ïåðåòâîðåííÿ, âèð³âíþâàííÿ îñâ³òëåíîñò³.

O. R. Berehulyak, R. A. Vorobel
LUMINOSITY EQUALIZATION OF SCENES OBJECTS USING THE LOGARITHMIC TRANSFORMATION
H. V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine

The problem of luminosity equalization on the image of scene is considered. It is shown that usage of single scale retinex, launched by E. Land, is its possible solution. The basic model of single scale retinex is analyzed. It is shown that this model is based on the usage of local contrast inversion. The parametric model of luminosity equalization is built to ensure optimal choice of the resulting image by the distinction. It is based on logarithmic transformation of inversion of weighted contrast. The results of the synthesized image processing are shown. The quantitative selection of optimally processed image on the basis of better details distinguishing in full range of intensities is illustrated. Keywords: image processing, retinex, logarithmic transformation, luminosity equalization.



ÌÀÒÅÌÀÒÈ×ÍÅ ÒÀ ÏÐÎÃÐÀÌÍÅ ÇÀÁÅÇÏÅ×ÅÍÍß

ÓÄÊ 004.056.5:517.[3+4+51]
Þ. ². Ãðèöþê, ß. Ï. Äðàãàí
×ÈÑËÎÂÅ ²ÍÒÅÃÐÓÂÀÍÍß ÒÀÁËÈ×ÍÈÕ ÔÓÍÊÖ²É ÄÂÎÕ Ç̲ÍÍÈÕ Ç ÂÈÊÎÐÈÑÒÀÍÍßÌ ÌÍÎÃÎ×ËÅÍÀ ÒÅÉËÎÐÀ
Ëüâ³âñüêèé íàö³îíàëüíèé óí³âåðñèòåò ³ìåí³ ²âàíà Ôðàíêà
E-mail: yurii.i.hrytsiuk@lpnu.ua, yuroslav.p.dragan@lpnu.ua

Ïîêàçàíî ìîæëèâ³ñòü ÷èñëîâîãî ³íòåãðóâàííÿ òàáëè÷íèõ ôóíêö³é äâîõ çì³ííèõ ç âèêîðèñòàííÿì ìíîãî÷ëåíà Òåéëîðà. Âñòàíîâëåíî, ùî ó áàãàòüîõ ïðàêòè÷íèõ çàäà÷àõ íå çàâæäè âäàºòüñÿ âèðàçèòè ïåðâ³ñíó ôóíêö³þ â³ä ï³ä³íòåãðàëüíî¿ ÷åðåç åëåìåíòàðí³ ôóíêö³¿. Ðîçðîáëåíî ìåòîä ÷èñëîâîãî ³íòåãðóâàííÿ òàáëè÷íî¿ ôóíêö³¿, ÿêèé äຠçìîãó îá÷èñëèòè îçíà÷åí³ îäèíàðí³ ³íòåãðàëè çà êîæíîþ ç³ çì³ííèõ, à òàêîæ îçíà÷åíèé ïîäâ³éíèé ³íòåãðàë çà äâîìà çì³ííèìè. Ðîçðîáëåíî àëãîðèòì îá÷èñëåííÿ ïëîù ïåðåð³ç³â òðèâèì³ðíî¿ ô³ãóðè òà ¿¿ îá’ºìó, çàäàíî¿ äâîìà òàáëè÷íèìè ôóíêö³ÿìè â³ä äâîõ çì³ííèõ. Êëþ÷îâ³ ñëîâà: ìíîãî÷ëåí Òåéëîðà; òàáëè÷íà ôóíêö³ÿ â³ä äâîõ çì³ííèõ; ÷èñëîâå ³íòåãðóâàííÿ òàáëè÷íèõ ôóíêö³é; îçíà÷åí³ îäèíàðí³ ³íòåãðàëè çà êîæíîþ ç³ çì³ííèõ; îçíà÷åíèé ïîäâ³éíèé ³íòåãðàë çà äâîìà çì³ííèìè; ïëîùà ïåðåð³çó òðèâèì³ðíî¿ ô³ãóðè.

Yu. I. Gryciuk, Ya. P. Dragan
USE OF TAYLOR POLYNOMIAL FOR NUMERICAL INTEGRATION OF TABLE FUNCTIONS OF TWO VARIABLES
National University “Lviv Polytechnic”

The possibility of numerical integration of table functions of two variables with the use of Taylor polynomial is shown. It is found out that in many practical problems it is not always possible to express the primitive of a subintegral function in terms of elementary functions. A method of numerical integration of a table function which enables us to calculate definite unary integrals with respect to each the variables, as well as to calculate a definite double integral with respect to its two variables is developed. With the use of Taylor polynomial, an algorithm of calculation of the areas of sections and volume of a three-dimensional geometrical solid which is determined by means of two table functions of two variables is developed. Keywords: arbitrary point of space of independent variables; Taylor polynomial; table function of two variables; numerical integration of table functions; definite unary integrals with respect to each the variables; definite double integral with respect to two variables.

ÓÄÊ 004.738.5
Â. Â. Ëèòâèí, Î. ². Ðåìåøèëî-Ðèá÷èíñüêà, Â. À. Âèñîöüêà
ÏÎÁÓÄÎÂÀ ÎÍÒÎËÎò¯ ÀÐÕ²ÒÅÊÒÓÐÍÈÕ ÒÅÐ̲ͲÂ
Íàö³îíàëüíèé óí³âåðñèòåò “Ëüâ³âñüêà ïîë³òåõí³êà”
E-mail: Victoria.A.Vysotska@lpnu.ua

Çàïðîïîíîâàíî ìåòîä ïîáóäîâè îíòîëî㳿 àðõ³òåêòóðíèõ òåðì³í³â äëÿ ïîäàííÿ ³ ðîçïîä³ëó çíàíü çàãàëüíîãî ñëîâíèêîâîãî çàïàñó ³ ï³äòðèìêè ³íòåëåêòóàëüíèõ çàïèò³â ó áàçàõ äàíèõ ç àðõ³òåêòóðè, à òàêîæ àâòîìàòèçîâàíîãî îáì³íó äàíèìè òà ³íòåãðàö³¿ íàâ÷àëüíèõ ïðîãðàì ç àðõ³òåêòóðè. Àïðîáîâàíî ¿¿ é äëÿ ïîøóêó ðåëåâàíòíî¿ ³íôîðìàö³¿, à ñàìå, äëÿ âèá³ðêè ñòîð³íîê ó ìåðåæ³ ²íòåðíåò ³ç ñèíòàêñè÷íî ð³çíèìè, àëå ñåìàíòè÷íî îäíàêîâèìè àðõ³òåêòóðíèìè òåðì³íàìè. Êëþ÷îâ³ ñëîâà: îíòîëîã³ÿ, àðõ³òåêòóðíèé òåðì³í, ïîíÿòòÿ, â³äíîøåííÿ, ìíîæèíà.

V. V. Lytvyn, Î. I. Remeshylo-Rybchynska, V. A. Vysotska
ARCHITECTURAL TERMS ONTOLOGY CONSTRUCTION
National University “Lviv Polytechnics”

The method of the architectural ontology terms development is proposed. It can be used as a mechanism for the provision and distribution of knowledge for definition of the general vocabulary and intellectual queries support in databases on architecture and support of data automated exchange and the architectural educational programs integration. It is proposed to use it for a relevant information search. For example, it is used for sampling pages from the Internet with syntactically different, but semantically identical architectural terms. The content of the research is to solve the application problem of ontology building for intelligent systems of information resources processing of the architectural structure (thesauruses, Web-resources, e-distance learning resources, educational programs, scientific publications, etc.) for textual data sets analyzing of architectural domains. The knowledge base ontology use in intelligent systems for information resources processing of architectural profile helps to solve a number of problems of methodological and technological character that arise during the development of such systems. In particular, Ukraine has a problem of the lack of conceptual integrity and coherence of individual techniques and knowledge on engineering methods for the development of appropriate systems in this area; lack of qualified specialists for software development of architectural direction; stiffness of developed software tools and their low adaptive capacity; complexity of the intelligent systems implementation for information resources processing of architectural profile, due to the psychological aspects. All this demonstrates and confirms the relevance of research problems using ontologies in intelligent systems building for information resources processing. Keywords: ontology, architecture, term, architectural terms, concepts, relations, set.

ÓÄÊ 004.42+519.876.5
À. Â. Âåðåì÷óê, À. Â. Ïóêàñ, ². Ô. Âîéòþê
ÏÐÎÅÊÒÓÂÀÍÍß ÏÐÎÃÐÀÌÍÎÃÎ ÇÀÁÅÇÏÅ×ÅÍÍß ÄËß ²ÄÅÍÒÈÔ²ÊÀÖ²¯ ²ÍÒÅÐÂÀËÜÍÈÕ ÌÎÄÅËÅÉ ÎÁ’ªÊÒ²Â Ç ÐÎÇÏÎIJËÅÍÈÌÈ ÏÀÐÀÌÅÒÐÀÌÈ
Òåðíîï³ëüñüêèé íàö³îíàëüíèé åêîíîì³÷íèé óí³âåðñèòåò
E-mail: a.veremchuk@tneu.edu.ua, apu@tneu.edu.ua, i.voytyuk@tneu.edu.ua

Ïîäàíî ñòðóêòóðó ïðîãðàìíî¿ ñèñòåìè äëÿ ìàêðîìîäåëþâàííÿ îá’ºêò³â ç ðîçïîä³ëåíèìè ïàðàìåòðàìè íà îñíîâ³ ³íòåðâàëüíèõ ð³çíèöåâèõ îïåðàòîð³â. Ðîçðîáëåíî ïðîåêò ñèñòåìè, ùî çàáåçïå÷óº ³íòåãðóâàííÿ ìåòîä³â ñòðóêòóðíî¿ òà ïàðàìåòðè÷íî¿ ³äåíòèô³êàö³¿ (ìåòîäè ïîáóäîâàí³ íà ðåçóëüòàòàõ äîñë³äæåííÿ ïîâåä³íêè áäæîëèíî¿ êîëîí³¿, ãåíåòè÷íèõ àëãîðèòìàõ, øòó÷íèõ íåéðîííèõ ìåðåæàõ ç âèêîðèñòàííÿì ðàä³àëüíî-áàçèñíèõ ôóíêö³é, âèïàäêîâîãî ïîøóêó ç³ çàñòîñóâàííÿì íàïðÿìíîãî êîíóñà) â ºäèíèé êîìïëåêñ. Êëþ÷îâ³ ñëîâà: ðîçïîä³ëåí³ ïàðàìåòðè, ìàòåìàòè÷íà ìàêðîìîäåëü, ³íòåðâàëüíèé ð³çíèöåâèé îïåðàòîð, ìåòîäè ³äåíòèô³êàö³¿, ïðîãðàìíå çàáåçïå÷åííÿ.

A. V. Veremchuk, A. V. Pukas, I. F. Voytyuk
DESIGN OF THE SOFTWARE FOR IDENTIFICATION OF THE INTERVAL MODELS OF OBJECTS WITH DISTRIBUTED PARAMETERS
Ternopil National Economic University

The design of structure and interface of a software system for macromodelling complex objects with distributed parameters, based on interval difference operator (IDO) are described. The developed software provides integration of the methods of structure identification (Artificial Bee Colony and genetic algorithms) and parameter identification (method based on artificial neural networks with radial basis functions and the method of random search using director cone method) to a single set. It makes it possible to simplify the macromodelling process. In particular researcher can determinei different parameters of methods and build IDO using a single software. Another advantage of the proposed software is the possibility to compare the obtained results with previously stored ones and make some decision about suitability of used methods of identification for researching an object with distributed parameters. Only the design stage of the software development of the life cycle is described. Next task for research will be to develop and test the software system. Keywords: complex object, distributed parameters, macromodel, interval difference operator, methods of identification, software system. 


Ïîíîâëåíî:21.12.2016