Актуальные проблемы в машиностроении. 2016. №3

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Актуальные проблемы в машиностроении. 2016. №3 Технологическое оборудование,
оснастка и инструменты
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MATHEMATICAL MODELING OF WHEEL RIMS PROFILING
Gribkov E. P.1, Ph.D. (Engineering), Associate Professor, e-mail:
Gavril’chenko E. Yu.2, Head of Design Bureau, e-mail:
Merezhko D. V.2, Designer, e-mail:
1 Donbass State Engineering Academy, 72 Shkadinova, Kramatorsk, Donetsk region, 84313,
Ukraine
2 PJSC "Novokramatorsky Mashinostroitelny Zavod", 5 Ordzhonykidze, Kramatorsk, Donetsk
region, 84305, Ukraine
Abstract
A mathematical model of the profiling wheel rims, which is based on decomposition of the
deformation zone on the set of elementary volumes, followed by analysis of elastic-plastic bending
of each section are developed. On the basis of calculations the quantitative and qualitative effect of
the sheet thickness, the radius of the rim and the height profile on the power parameters of the
process are installed. Finite-element model was developed to determine the legitimacy of the
assumptions and the accuracy of power parameters calculation. As a result of solutions analysis the
identified levels of strain and stress, as well as the nature of the loads increase. Profiling force
calculation error does not exceed 6.7%.
Keywords
profiling, rim wheels, mathematical model, elastic-plastic deformation, rotary running