Maxwell-ANSYS Workbench-optiSLang Pneumatic ... - Dynardo GmbH

Maxwell-ANSYS Workbench-optiSLang 

Pneumatic outlet 

21.10.2010 

Dipl.-Ing. Markus Kellermeyer – CADFEM GmbH

Agenda 

- Motivation 

2 

Maxwell – ANSYS Workbench - optiSLang 

- Task: pneumatic outlet 

- Parameterization 

- Workflow for implemeting signals 

- Optimization 

- Outline

Motivation 

3 


New product in the ANSYS portfolio: 

Maxwell, for doing electro-magnitic simulations 

Since ANSYS V12 „Maxwell“ can be directly imported to the 

ANSYS Workbench project page via „External Connection“ 

The transfer of the Maxwell parameters and 

the interface to optiSLang in Workbench 

allows a completely automized workflow 

which can be used for stochastical 

explorations.

4 


Task: Optimization of the force-position signal of a pneumatic outlet 

To adjust the volume flow it is important to know 

the force-path characteristic of a pneumatic outlet. 

In this task the objective is to get a predefined 

characteristic curve where the force on the pusher 

is defined by a given position.

5 


Maxwell overview 

Menu bar 

Project 

Manager with 

project tree 

Proberty 

Window 

Massage 

Manager 

Status bar 

n 

e 

c 

e 

s 

s 

a 

r 

y 

Design tree 

Toolbar 

2D 

Modeler 

Window 

Progress 

Window

6 


Geometry generated in Maxwell 

Housing 

Anker body with 

pusher 

Coil 

Core

7 


Material import in Maxwell 

A material BH curve 

can be imported to 

define the relative 

Permeability.

8 


Design Setup in Maxwell 

Excitation: CurrentDensity Parameter: Force_Anker Moving: Anker

9 


Force-Path-Characteristic for the initial design

10 


Parameterization of the geometry in Maxwell 

• Sprung 

• Luftspalt 

• Kernspitze 

• Breite_winkel 

• Breite 

• Sprung_winkel_x 

• 12 more Parameters

11 



• Sprung 

• Luftspalt 



• Breite 



12 



• Sprung 

• Luftspalt 



• Breite 



13 



• Sprung 

• Luftspalt 



• Breite 



14 



• Sprung 

• Luftspalt 



• Breite 



15 



• Sprung 

• Luftspalt 



• Breite 



16 


Objective 

The signal should be adapted to the given force-displacement 

curve. This will be realized by changing geometry parameters.

17 


Interface to ANSYS Workbench: Create Workbench Project 

The parameters will be 

transfered to Workbench. 

Now changes can be made in 

the parameter set.

18 


ANSYS Workbench project page 

Connection to other physic 

domains in ANSYS V13 / 

Maxwell 14

19 


Parameter set in ANSYS Workbench

20 


optiPlug – the interface between ANSYS Workbench and optiSLang 

Necessary files for optiSLang 

are created automatically, 

no scripting..

21 


Parametrization of signals 

This is done by scripting 

à Use Maxwell Script Writer 

à Couple „optiPlug Input Parameters“ with „Script Input Parameters“

22 


Workflow/interaction diagram 

interface 

Maxwell Workbench

23 



interface 

optiPlug 

Maxwell Workbench optiSLang 

- Input Parameter File 

- Output Parameter File 

- .bat - file

24 



optiPlug 


Batch-call 

Script 

interface 

- Chances Input parameter 

- Writes Outputs for signals 



- .bat - file

25 



optiPlug 


Batch-call 

Script 

interface 



Sychronized by 

dependencies defined in 

optiSLang 



- .bat - file

26 



Simplorer 

optiPlug 


Batch-call 

Script 

interface 



Other WB 

physic domains 






- .bat - file

27 



Simplorer 

optiPlug 


Batch-call 

Script 

interface 



Other WB 





Workflow for single parameters 



- .bat - file

28 



Simplorer 

optiPlug 


Batch-call 

Script 

interface 



Other WB 





Workflow for signals 



- .bat - file

29 


Script-excerpts 

optiPlug batch 

file 

„Signal part“

30 


Script-excerpts 

Maxwell script

31 


Parametrization The parameter tree lists the predefined 

parameters from Maxwell. 

By double-clicking on 

the parameter you can 

insert an upper and 

lower bound. 

Now the variability of 

each parameter is 

defined.

32 


Sensitivity Analysis 

Signal data

33 


Correlation matrix 

Input vs. 

Input 

Input vs. 

Output 

Output vs. 

Output 

The correlation matrix shows the 

correlation between Input & 

Input, Input & Output, Output & 

Output. 

These are the 

parameters with the 

most affect on the 

objective. 

à 6 input parameters 

are taken into 

account for further 

evaluations

34 


Correlation matrix 

Input vs. 

Input 

Input vs. 

Output 

79% CoI 

89% 

Coefficient of Importance 

increases to the right 

à The right side can be 

described much better

35 


Signal Data for 45 Designs 

For each parameter one forcepath 

characteristic can be 

obtained. The next step is to 

optimize the characteristic.

36 


Optimization results 

Objective value 

à difference to 

reference curve 

Parameters 

for best 

design 

Signal data

Signal Data 

37 


Reference curve 

best design 

Other designs

38 


Optimized Geometry 

Original geometry Optimized geometry 

By exporting the best design 

back to Maxwell the result of the 

optimization can be seen.

Outline 

39 


à Coupling of Maxwell and Simplorer (density should be controlled by 

Simplorer) 

à Parameterization possible: 

define inputs in Simplorer

Outline 

40 


à Coupling of Maxwell and Simplorer 

V12.1 

V13 

à Definition of multiple objectives: e.g. signal characteristic, mass, 

„Überschwingen des Signals“

Outline 

41 


à Coupling to other physic domains in WB (temperature etc.) 

à Possible with ANSYS WB V13 – Maxwell14 

Connection to other physic 

domains in ANSYS V13 / 

Maxwell 14

Outline 

42 


à Take advantage of all the other 

parameterization possibilities in 

the other physic domains

43 


Thank you for your attention!

Maxwell-ANSYS Workbench-optiSLang Pneumatic ... - Dynardo GmbH

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