Virtual tryout planning in automotive industry based on simulation metamodels

IDDRG2016 conference on "Challenges in Forming High-Strength Sheets".

Harsch, D.^1 ; Heingärtner, J.^1 ; Hortig, D.^2 ; Hora, P.^3

Inspire AG - Ivp, Technoparkstrasse 1, Zürich

8005, Switzerland^1

Daimler AG, Käsbrünnlestrasse, Sindelfingen

71059, Germany^2

ETH Zürich, Institute of Virtual Manufacturing, Tannenstr. 3, Zürich

8092, Switzerland^3

关键词: Complex relationships;    Finite element simulations;    Force distributions;    Process condition;    Sheet metal parts;    Simulation metamodels;    Tool manufacturers;    Virtual knowledge;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/159/1/012007/pdf
DOI  :  10.1088/1757-899X/159/1/012007

来源: IOP

【 摘 要 】

Deep drawn sheet metal parts are increasingly designed to the feasibility limit, thus achieving a robust manufacturing is often challenging. The fluctuation of process and material properties often lead to robustness problems. Therefore, numerical simulations are used to detect the critical regions. To enhance the agreement with the real process conditions, the material data are acquired through a variety of experiments. Furthermore, the force distribution is taken into account. The simulation metamodel contains the virtual knowledge of a particular forming process, which is determined based on a series of finite element simulations with variable input parameters. Based on the metamodels, virtual process windows can be displayed for different configurations. This helps to improve the operating point as well as to adjust process settings in case the process becomes unstable. Furthermore, the time of tool tryout can be shortened due to transfer of the virtual knowledge contained in the metamodels on the optimisation of the drawbeads. This allows the tool manufacturer to focus on the essential, to save time and to recognize complex relationships.