Перегляд за Автор "Bovsunovskyy, Anatoly"
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Документ Comparative analysis of sensitivity of vibration damage indicators by the results of laboratory tests(1999) Bovsunovskyy, AnatolyДокумент Determination of materials damping properties through the phase difference between strains(1994) Matveev, Volodymyr; Bovsunovskyy, Anatoly; Chaikovsky, B.The original method and experimental procedure for measuring materials damping capacity through the phase difference between axial and transverse strains is presented. The results of the determination damping capacity of carbon steels and Mn-Cu alloy specimens are presented. A direct experimental estimation of the static tension and stress gradient effect on the materials damping properties at flexural vibrations is carried out. The data are correlated with damping characteristics of the metals obtained by free damped oscillations method.Документ Estimation of crack parameters by the level of the vibration response non-linearity of a cracked beam at super- and subharmonic resonances(2008) Bovsunovskyy, Anatoly; Bovsunovskyy, OlegThe proposed procedure of crack location and size estimation is based on the determination of the vibration response non-linearity around the superharmonic resonance of order 2/1 and subharmonic resonance of order 1/2 when the driving force is applied at different points.Документ Fatigue damage and failure of steam turbine rotors by torsional vibrations(2010) Bovsunovskyy, Anatoly; Chernousenko, Olga; Shtefan, Yevgenii; Bashta, DmitryThe fatigue damage and failure of steam turbine rotors by torsional vibrations are investigated. Possible causes of the occurrence of torsional vibrations are discussed. Modeling of torsional vibrations of the shifting of a steam turbine, which occur under its operating conditions, has been performed, and the cyclic strength of the shifting under these vibrations has been estimated.Документ Fatigue damage of turbine shafts of sugar plants at asynchronous connections of turbogenerator to the power network(2013) Kuyevda, Valery; Bovsunovskyy, Anatoly; Kuievda, Yulia; Shtefan, YevgeniiThe increase of durability of power equipment of sugar plants is the actual problem. One of the important component part of this problem is the torsional vibration of turbine shafts caused by the action of the reactive electromagnet moments which arise at asynchronous connections of turbogenerator to the power network. In some cases the torsional vibration of turbine shafts leads to theirs essential fatigue damage. The calculations of fatigue damage of most strained parts of the turbine shaft at forced torsional vibration were executed with the ANSYS software (modal analysis).Документ Non-linear resonance vibrations of cracked beams in condition of driving force parameters variation(IMAC, 2008) Bovsunovskyy, Anatoly; Bovsunovskyy, OlegRelationship between the closing crack parameters and non-linear resonances.Документ The effect of damping and force application point on the non-linear dynamic behavior of a cracked beam at sub- and super-resonance vibrations(2006) Bovsunovskyy, Anatoly; Surace, C.; Bovsunovsky, OlegIt is shown the relationship between the crack sizes and non-linear resonanses.