DYNAMICS SIMULATION OF DRAW BAR FOR AUTOMATIC

Abstract

The problem about parametrical fluctuations of system «sleeve (pipe) – mandrel – core» of an automatic mill of the pipe-rolling unit is considered. The differential equation of movement of a core mandrel of an automatic mill of the pipe-rolling unit is worked out. Dynamic processes are presented by the differential equations system in the form of Matier-Hill equations. The stability areas of functioning the mechanism of keeping the automatic mill mandrel are determined.

Keywords

• dynamics
• core
• mandrel
• pipe