Юзефович Р.М., Дзерин О.Ю., Мацько И.Й., Яворський И.Н., Стецко И.Г. «Неразрушающий контроль узлов сложных машинных комплексов по взаимостатистическим характеристикам вибрационных сигналов» Техническая диагностика и неразрушающий контроль, № 3, с. 14-20 (2017)

A brief description of vibration control devices and main requirements to their designing are given. The results of analysis of the horizontal and vertical components of vibrations of the bearing unit of the coal conveyor were considered, the realizations of which were obtained with the help of the portable vibroacoustic system created at the PhMI of the NAS of Ukraine. Using the methods of statistics of periodically correlated random processes (PCRP), the main properties of characteristics of the second-order periodic nonstationarity of the stochastic vibration component were established in the presence of a defect, their high sensitivity to change in the defect parameters was detected. It is shown that mutual PCRP-analysis of the vibration components makes it possible to localize the defects and establish their types

Скальский В.Р., Макеев В.Ф., Станкевич Е.Н., Кирманов А.С. «АЭ-диагностирование разрушения стоматологических реставрационных материалов» Техническая диагностика и неразрушающий контроль, № 3, с. 21-28 (2017)

The features of fracture of different types of dental materials for temporary orthopedic structures and endocrowns under tensile and compression loads, respectively, were considered. For the analysis of acoustic emission signals, a continuous wavelet transformation was used. According to the energy criterion, the distribution of typical types of macro-fracture for each material was established. The results of investigations are correlated with those known in the literature. It was established that for both types of dental materials of different nature, a common feature is the alternation of viscous and viscous-brittle fracture with a brittle one throughout the entire time of loading the specimens.