Method for Obtaining Distorted Layer Nodes and Outer Contour Nodes of Rolled Workpieces

Abstract

The invention relates to a method for acquiring distortion sheet layer nodes and outer contour nodes of a rolled piece. The method includes: from a blank model K file, acquiring all first blank nodes and number thereof of a Z coordinate with a first preset value, and acquiring all second blank nodes with the second preset value and the number of the second blank nodes; from a rolled piece K file, acquiring first rolled piece nodes with the same number as the first node number and second rolled piece nodes with the same number as the second node number; in the blank K file or the rolled piece K file, searching for units only formed by preset nodes and the number of the units; in the rolled piece K file, reserving the acquired first rolled piece nodes, the second rolled piece nodes, the searched units, and deleting rolled piece nodes which are not selected and units which are not searched to obtain the rolled piece sheet layer K file.

Description

technical field [0001] The invention relates to the field of rolling simulation analysis, in particular to a method for obtaining nodes of distorted sheets and outer contour nodes of rolled parts. Background technique [0002] When using ANSYS / LS-DYNA software to simulate the rolling of the billet, sometimes the distortion of the rolled piece is very serious, resulting in such as figure 1 Each layer unit of the post-rolled piece shown is uneven. At this time, in order to obtain the distorted sheet elements of the rolled workpiece, when using the box selection command provided by the LS-PrePost software, it often happens that the unit body that should not be selected is selected, which leads to the waste of the prerequisite work. [0003] Moreover, when the unit body of the sheet unit of the rolled piece is selected one by one, the workload is huge, and the situation of wrong selection and re-selection often occurs. [0004] In addition, when using the LS-PrePost software t...

AI Technical Summary

Problems solved by technology

[0002] When using ANSYS / LS-DYNA software to simulate the rolling of the billet, sometimes the distortion of the rolled piece is very serious, resulting in such as figure 1 Each layer unit of the post-rolled piece shown is uneven

At this time, in order to obtain the distorted sheet unit of the rolled part, when using the frame selection command provided by the LS-PrePost software, it often happens that the unit body that should not be selected is selected, resulting in a waste of precondition work

[0003] Moreover, when the unit body of the sheet unit of the rolled piece is selected one by one, the workload is huge, and the situation of reselecting by mistake often occurs.

[0004] In addition, when using the LS-PrePost software to select the outer contour of the rolled piece, it is necessary to delete all internal nodes of a certain layer on the upper and lower surfaces of any sheet unit of the rolled piece, such as figure 2 As shown, when selecting nodes one by one, the workload is huge, time-consuming, and the probability of error is high

Images