Automation of FEM Simulation · ANSYS Conference &33. CADFEM Users´Meeting 24-26 June 2015, Bremen...

ANSYS Conference & 33. CADFEM Users´ Meeting24-26 June 2015, Bremen

Automation of FEM Simulation

GS/ECC-SI-Ziombra | 22.05.2015 | 15_0207 | © Robert Bosch GmbH 2015. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

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Automation of Finite Element Analysis on the example of high-pressure injection valveAndrzej Ziombra

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Bosch - Four business sectors AutomotiveTechnology

IndustrialTechnology


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Energy andBuilding Technology

ConsumerGoods

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Gasoline Systems - Direct Injection


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Contents

Ø High-pressure injector HDEV 5 - brief introduction

Ø The challenge

Ø Model description

Ø Process overview


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Ø The method – journaling and scripting

Ø Post processing

Ø Summary and outlook

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High-pressure injector - HDEV5 Variability of spray form


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High-pressure injector - HDEV5

Injection holes


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Injection holes

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HDEV - Variants of injection holes


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The challenge : 300+ design variants per annum

R

DS – pre-stage diameter


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DS – pre-stage diameterDE – injection hole diameterL – length of injection holeR – rounding radius of pre-stage

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HDEV 5 - FE Model

bonded contact


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pressurefrict. contactneedle/valve seat

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HDEV5 - FE Model creation• assign materials to parts

• create contacts and their settings

• assign mesh settings to volumes, surfaces, lines


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• read in geometry• divide volumes• create sets

• create sets

• define loads and BCs

• create results sets for evaluation

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Flow chartExcel / VBA

import coordinatesdefine parameters

FastFEMmain.py

FastFEMmain.py

RunWB2.exeinput.txtparam.txt

start Ansyscreate data


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Design Modelervalve seat

Template Model

geometry.jsgeometry.js

Ansys Mechanical

JScriptsfor

preprocess

JScriptsfor

preprocess

report.jsreport.js Excelresults

Report.pdf

time

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How it is possible?It is all about sets – named selections required for contacts, mesh, loads, a.s.o.An example: create set for pre-stage radius of injection hole No.2 :


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Python

Journal in WB


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Scripts in Ansys WB

JavaScript


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APDL codein JavaScript

JavaScript

examples of JavaScript code

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Report generation


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Excel/VBA in JavaScript

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•User defined plots, legend, views•Figure generation•Annotations only with APDL•Parametric results

Postprocessing


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Ansys ProjectAnsys Project Ansys MechanicalAnsys Mechanical

3rd Party SoftwarePDF3D ReportGen3rd Party SoftwarePDF3D ReportGen VRMLVRML

Python APDL

Connecting external programs - PDF3D


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Summary

ü Standardization of the process

ü Best practice incorporated

ü Relief of simulation engineer from standard routines

ü Reduction of errors


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ü Time/Costs reduction

ü Parameters enabled for optiSLang (optimization)

ü Tool for non simulation engineers

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Thank you for your attention


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Automation of FEM Simulation · ANSYS Conference &33. CADFEM Users´Meeting 24-26 June 2015, Bremen...

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Transcript of Automation of FEM Simulation · ANSYS Conference &33. CADFEM Users´Meeting 24-26 June 2015, Bremen...