Finite element modelling of stress-strain state of the traverse of the hydraulic press
Journal Title: Комп’ютерне моделювання: аналіз, управління, оптимізація - Year 2017, Vol 1, Issue 1
Abstract
In the present article the stress-strain state of the traverse of the central ejector of the hydraulic press has been investigated by using finite element modeling. It is established that in the traverse with the force of pushing out 1,52 MN, the largest equivalent stresses, calculated according to the Mises formula, are observed in the places of application of loads, bearing surfaces, sharp changes in geometry. It is shown that equivalent stresses increase in height on the inner surface of the central cylinder and decrease on the inner surfaces of the side cylinders. It is found that the maximum displacements and deformations are observed in the upper part of the traverse, and the minimum – in the lower part. The analysis of the diagrams of the investigated stresses and strains showed that the existent geometry of traverse is not optimal – the stresses and strains in its different parts differ significantly. Based on the analysis of the stress-strain state, a variant of changing the geometry of some parts of the traverse was proposed, which, with an insignificant increase in stress, reduced its weight. The obtained results can be used for improvement of existing and development of new hydraulic presses.
Authors and Affiliations
С. І. Немчинов
Моделирование колебаний стержня оправки стана холодной пильгерной прокатки труб
Рассмотрена задача о параметрических колебаниях для выбранной модели системы «труба – оправка – стержень» механизма удержания оправки стана холодной пильгерной прокатки труб (ХПТ). Разработана расчетная схема и составлен...
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