МАТЕМАТИЧНА МОДЕЛЬ ДИНАМІКИ ДИСПЕРСНОГО СЕРЕДОВИЩА В ПРОЦЕСАХ ФОРМОУТВОРЕННЯ ЗАГОТОВОК ПОРОШКОВОЇ МЕТАЛУРГІЇ
Ключові слова:mathematical model, powder metallurgy, dynamics, normal stress, differential equation, deformation
A mathematical model has been developed for changing the dynamics of the movement of a dispersed medium in vibro-impact technological processes of shaping of powder metallurgy blanks. On the basis of the problem of two-dimensional dynamic interaction of dispersed particles of powder metal of a spacer dispersed medium, the obtained differential equation in partial derivatives under various boundary conditions. This equation describes the state of the local area of the dispersed medium. In it, the powder material of the workpiece passes from the concentrated dynamic force to the excitation phase. A partial differential equation is obtained. It describes the change in normal stress during vibrations of a dispersed medium during vibration compaction of a workpiece in powder metallurgy.
Iskovych-Lototsky R. D., Ivanchuk Y. V., Veselovsky Y. P. The basis of resonance-structure theory for vibroimpact unloading of the vehicles // Science Transport Progress. Bulletin of the Dnipropetrovsk National University of Railway Transport named after Academician
V. Lazaryan. – Д., 2014. – №5(53) – P.109 – 118; doi: 10.15802/stp2014/30458.
Iskovych-Lototsky R. D., Ivanchuk Y. V., Veselovskyi Y. P. Modeling treatment forestry engineering materials under vibration and vibro-impact load // Scientific Bulletin of
UNFU. – Lviv. – 2018. – Vol. 28(5). – P. 124-129. doi: 10.15421/40280526.
Iskovych-Lototsky R. D., Ivanchuk Y. V., Tesovsyi D. V., Veselovskyi Y. P. Hybrid modeling applications for waste management plants // Technological Complexes. Science Journal – Lutsk, 2012. – Vol. 1,2(5, 6). – P. 122 – 126.
Iskovych-Lototsky R. D., Ivanchuk Y. V. Investigation of the dynamics of the process of operation of a universal hydraulic vibro-shock drive for unloading vehicles // Scientific notes. Interuniversity collection (in the direction of "Engineering Mechanics") – Lutsk,
– Vol. 20. – P. 184 – 187.
Iskovych-Lototsky R. D., Ivanchuk Y. V. Improving the efficiency of unloading materials under the influence of periodic shock pulses // Vibrations in engineering and technology. – 2008. – Vol. 2 (51). – P. 8 – 11.
Iskovych-Lototsky R. D., Ivanchuk Y. V., Veselovsky Y. P. Modeling of the working processes in hydroimpulsive drive with an one-step valve-pulsare // Vibrations in engineering and technology. – Vinnytsia, 2017. –№ 3 (86). – P. 10–19.