A Mapping Method for Introducing Stamping Forming Information into the Crash Simulation Model

Abstract

The invention provides a mapping method for introducing stamping forming information into a collision simulation model, belonging to the field of simulation applications. It solves the problem of offset and distortion of stamping information in the process of mapping stamping forming information to a collision simulation model in the prior art. The method includes the following steps: A. Select a number of reference points according to the shape and characteristics of the auto parts required to map stamping forming information in the collision simulation; B. Carry out quadrilateral mesh division on the above auto parts, and read the reference points corresponding to The node number of the quadrilateral mesh node; C. Carry out stamping and forming simulation on the above-mentioned auto parts, so that each reference point is on the node of the triangular mesh; D. Read the triangle mesh node corresponding to the reference point after the stamping and forming simulation is completed E. According to the same reference point and different grid node numbers, one-to-one mapping is performed. The method can completely and effectively map the stamping forming information to the vehicle collision simulation model.

Description

technical field [0001] The invention belongs to the technical field of simulation application and relates to a mapping method for introducing stamping forming information into a collision simulation model. Background technique [0002] The finite element model used in the crash simulation model is established based on the ideal structural geometry model. The cross-sectional size, plate thickness distribution and material properties of each auto part are all design values, and the manufacturing processes such as stamping and welding are not taken into account. Therefore, the stamping simulation is often introduced into the crash simulation at present, so as to improve the simulation accuracy and accuracy of the crash simulation model. [0003] At present, in the process of mapping the stamping simulation results to the collision simulation model, it is first required to establish a local coordinate system, that is, the reference point. The selection of the reference point is ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the existing problems, the present invention proposes a mapping method for introducing stamping forming information into the collision simulation model. The technical problem solved by this method is how to completely and effectively map the stamping forming information into the vehicle collision simulation model

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