cae benchmark for structural simulation tools at bsh · >1x yearly in cae every 2 years in cad...
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CAE Benchmark for structural simulation tools at BSH
Presentation date: 25th October 2017 | 8 a.m.Presenter Name: Doris GschwendtnerRoom name: Cannes
E-Mail: [email protected].: +49 8669 30 5655Address: BSH Hausgeräte GmbH
Werner-von-Siemens-Str. 20083301 Traunreut
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Content
General
• About BSH
• About the benchmark
Benchmark
• General information
• Test cases
• Main criteria
Summary• Results of the benchmark & Outlook
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Content
General
• About BSH
• About the benchmark
Benchmark
• General information
• Test cases
• Main criteria
Summary• Results of the benchmark & Outlook
![Page 4: CAE Benchmark for structural simulation tools at BSH · >1x yearly in CAE every 2 years in CAD Problems with CAD and CAE users working on one part with different versions –newer](https://reader030.vdocuments.us/reader030/viewer/2022040114/5e18171ceb730b2a08163544/html5/thumbnails/4.jpg)
About BSH |BSH at a glance
1967
Founded as a joint venture between
Siemens AG and Robert Bosch GmbH
2016
• 41 factories in Germany, China, France, Greece, India, Peru, Poland, Russia, Slovakia, Slovenia, Spain, Turkey, USA
• 58 300 Employees of which 3 500 R&D specialists
• Revenue 2016 13.1 bn. Euros
• Worldwide No. 2 in market | Europe No. 1 in market
BSH Hausgeräte GmbH
Founded in 1967
Robert Bosch GmbH
100%
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About BSH | Product Portfolio
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About BSH | Our Brands
BSH Home Appliances Group is a Trademark Licensee of Siemens AG for the brand Siemens and of Robert Bosch GmbH for the brand Bosch.
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About BSH | Siemens and BSΗ
Siemens statement„NX is able to solve a
major amount ofBSH‘s simulation
tasks.“
Strategy of Siemens enhancing CAE
portfolio (LMS, cdAdapco)
Strategic partnership between Siemens and
BSH since January 2016
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About BSH | CAE Simulation at BSH
• ~ 150 users worldwide(Europe + China)
• ~ 45 structural mechanicusers
Fluid Dynamics30%
Structural34%
Crash2%
Molding28%
System6%
Fluid Dynamics
Structural
Crash
Molding
System
• Siemens tools are used in some sites
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Simulation at Siemens
NX CAE / NX FlowLMS
CD-Adapco
Teamcenter
Simcenter 1D/3DTeamcenter
Benchmark @ BSH
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Simulation at Siemens
…2012
• Coming from I-DEAS
• Purchasing Nastran (NX Nastran)
• 2012: acquisition of LMS
2016
• January: Acquisition of CD-adapco
• March – July: BSH Structural Benchmark based on NX 10.0.3.x / 2016-current tool at BSH
• July: introduction of Simcenter 11
2017…
• October: introduction of dedicated CAE support at Siemens
• October: PLM Europe
• Simcenter 12
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Content
General
• About BSH
• About the benchmark
Benchmark
• General information
• Test cases
• Main criteria
Summary• Results of the benchmark & Outlook
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Only structuralmechanics
Not a completebenchmark
Good impressionand overview
General Topics | About the Benchmark
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General Topics | Goals of the Benchmark
Prove / disprovethe Siemens statement
Find out differences in the software
Evaluation of total costs of ownership
Outlook
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Content
General
• About BSH
• About the benchmark
Benchmark
• General information
• Test cases
• Main criteria
Summary• Results of the benchmark & Outlook
![Page 15: CAE Benchmark for structural simulation tools at BSH · >1x yearly in CAE every 2 years in CAD Problems with CAD and CAE users working on one part with different versions –newer](https://reader030.vdocuments.us/reader030/viewer/2022040114/5e18171ceb730b2a08163544/html5/thumbnails/15.jpg)
Test Cases | Overview
• Four low to medium complex models to compare pre-/ postprocessor and solver
• Models were calculated by Dr. Binde Ingenieure and BSH engineers
• The Models
– Single part (material modeling): tensile test
– Small assembly (contacts): silicon sealing
– Medium assembly: door panel – glass package
– Thermal + mechanical coupling: cavity base
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Test Case 1 | Tensile Test
Description
• Material: plastic
• Load: forced displacement of 2mm in z-direction
• Result: plot force over displacement andcompare with test
Challenge
• Material modeling
• Receive the same results as in the tests
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Test Case 1 | Tensile Test | Result
BSH Siemens
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Test Case 2 | Silicon Sealing
Description
• Silicon sealing is bent by 90° between to metal sheets.
• Result: compare deformation (direction andmagnitude)
Challenges
• Hyperelastic material
• Contact situation
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BSH Siemens
Test Case 2 | Silicon Sealing | Result
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Test Case 3 | Door Panel – Glass Package
Description
• The mounting process of the oven glass package should be modelled with the help of the FEM to analyze the press-stress condition.
Challenges
• All initial penetration of the 3D-CAD-parts should be eliminated
• Τo generate the pre-stress condition, the two pre-stress springs between the inner and the intermediate glass panel, which are pushing the glasses against the retainer, should be strutted between the panels.
• Gravity
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BSH Siemens
Test Case 3 | Door Panel | Result
Total Deformation
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Test Case 4 | Cavity Base
Description
• Bottom Sheet of a cavity
• Thermally loaded by a heating element
• All three heat transfer mechanisms
• Second step: deformation of the sheet metal part is simulated due to thermal expansion.
Challenges
• Coupling of thermal and structural analysis by using all three heat transfer mechanism (conduction, convection, radiation)
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BSH Siemens
Test Case 4 | Cavity Base | Result
Total deformation
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Content
General
• About BSH
• About the benchmark
Benchmark
• General information
• Test cases
• Main criteria
Summary• Results of the benchmark & Outlook
![Page 25: CAE Benchmark for structural simulation tools at BSH · >1x yearly in CAE every 2 years in CAD Problems with CAD and CAE users working on one part with different versions –newer](https://reader030.vdocuments.us/reader030/viewer/2022040114/5e18171ceb730b2a08163544/html5/thumbnails/25.jpg)
Main Criteria
Software Costs
Integrated Tool Chain
Raising Efficiency
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Criterion 1 | Software Costs
Very high license costs for CAE software
• Specialized Software
• Costs per user are significant higher than in CAD and number of user much lower
Existing contract with Siemens
• Strategic partnership
• Good cooperation
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Criterion 2 | Integrated Tool Chain
+ NX - NXProblems with TC-Integration due to
Update cyclemajor updates:
>1x yearly in CAEevery 2 years in CAD
Problems with CAD and CAE users
working on one partwith different
versions – newerversion „wins“
Standard CAD toolin BSH
One environment for several analysis / tasks (e.g. CAD,
CAM, CAE)
Improvements in work/implementedwith Simcenter!
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Criterion 2 | Integrated Tool Chain
+ NX - NXProblems with TC-Integration due to
Update cyclemajor updates:
>1x yearly in CAEevery 2 years in CAD
Problems with CAD and CAE users
working on one partwith different
versions – newerversion „wins“
Standard CAD toolin BSH
One environment for several analysis / tasks (e.g. CAD,
CAM, CAE)
Improvements in work/implementedwith Simcenter!
Siemens BSH
Summary
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Criterion 3 | Raising Efficiency
Efficiency
Man Power
License
Hardware
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Criterion 3 | Raising Efficiency
Criteria to consider
• Handling
(user interface, usability)
• Performance
(calculating speed)
• Speed in general
(effort to set up a model, loading
times…)
• Quality of results
Preprocessing
Solver
Postprocessing
• Speed
• Convergence
• Geometry
• Meshing
• Boundary Conditions
• Material
• Speed
• Functionality
S
U
P
P
O
R
T
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Criterion 3 | Raising Efficiency | Support
Software
• User support
• Technical assistance andconsulting
• Extensions (macros)
• Trainings
Hardware
• Cluster setup
• Remote solutions(e.g. Citrix connection)
Know-How
• Special trainings
• Special assistance
• Deep applicational and technicalknowledge in all areas coveredby the software
Worldwide and in local language
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Criterion 3 | Raising Efficiency | Differences in Workflow
• Video demonstration about how to set up the tensile test.
NX BSH
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Based on NX10 (2015)
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Criterion 3 | Raising Efficiency | Differences in Workflow
• Video demonstration about how to set up the tensile test.
NX BSH
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Based on Ansys 17.2 (2016)
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Siemens BSH
Geometry preparation
Meshing
Setup
Summary
Criterion 3 | Raising Efficiency | Preprocessing
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Criterion 3 | Raising Efficiency | Solver
Siemens BSH
Functionality
Speed
Usability
Summary
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Criterion 3 | Raising Efficiency | Postprocessing
Siemens BSH
Function range
Automation
Summary
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Content
General
• About BSH
• About the benchmark
Benchmark
• General information
• Test cases
• Main criteria
Summary• Results of the benchmark & Outlook
![Page 40: CAE Benchmark for structural simulation tools at BSH · >1x yearly in CAE every 2 years in CAD Problems with CAD and CAE users working on one part with different versions –newer](https://reader030.vdocuments.us/reader030/viewer/2022040114/5e18171ceb730b2a08163544/html5/thumbnails/40.jpg)
Results| Statement of Siemens
Prove / disprovethe Siemens statement
Find out differences in the software
Evaluation of total costs of ownership
Outlook
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Results | Statement of Siemens | 01/2016
NX is able to solve a major amount of our simulation tasks.
Effort to set up the simulation is higher than in our tool
More complicated workflow
Some key features missing / not well implemented
NX may be too complex for design engineers
Support at Siemens is improving, positive development
NX BSH
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Results | Statement of Siemens | Now
NX is able to solve a major amount of our simulation tasks.
Siemens is very interested in improvements and makes constant effort to improve the tool chain for
simulation
NX BSH
Required features and improvements for workflow are considered.
Some features are already implemented in newer versions than currently used in BSH.
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Results | Differences
Prove / disprovethe Siemens statement
Find out differences in the software
Evaluation of total costs of ownership
Outlook
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Siemens BSH
Integrated Tool Chain
Preprocessing
Solver
Postprocessing
Support (Status 07/2016)
Results | Differences | Conclusion
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Siemens BSH
Integrated Tool Chain
Preprocessing
Solver
Postprocessing
Support (Status 10/2017)
Results | Differences | Conclusion
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Results | Total costs of ownership (TCO)
Prove / disprovethe Siemens statement
Find out differences in the software
Evaluation of total costs of ownership
Outlook
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Results | Total costs of ownership (TCO)
IT Costs
Hardware
Licenses
Data Storage
Basic Costs
Licenses
Support
Siemens - NEW BSH - currently
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Results | Total costs of ownership (TCO)
Human Resources
Man Power
Retraining
NX CAE Rollout
Siemens - NEW BSH - currently
IT
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Results | Total costs of ownership (TCO)
O
V
E
R
A
L
L
C
O
S
T
S
Siemens - NEW BSH - currently
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Results | Outlook
Prove / disprovethe Siemens statement
Find out differences in the software
Evaluation of total costs of ownership
Outlook
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• Results were discussed with Siemens and main points were addressed
• Siemens was highly interested in theresults and is open minded andcooperative
• Close cooperation for furtherimprovement, lots of pro-activeactivities from Siemens
• First progress in many areas, somefeatures are already implemented in newer versions
Next steps at BSH andSiemens
Results | Outlook
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Results | Outlook
Together we…
Track the improvement
Push the development
Review the progress
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www.plm-europe.orgwww.siemens.com/plm
October 2017
Thank you very much foryour attention!