Alumínium palackok nyakazási lépéseinek és stabilitásvesztésének modellezési sajátosságai

Abstract

The most critical questions in the production process of aluminium cans are the calculation of the reaction forces and the determination of the limitations for the forming steps where the loss of stability occurs. This paper investigates the system of differential equations of this stability problems and its solution with finite element analysis. A three-dimensional model is considered using shell elements, where the ideal geometry is perturbed by the scaled displacement field coming from the combinations of the eigenshapes. The strongly nonlinear stability problem is solved by the modified Riks algorithm.