Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 1
FLUX / GOT-It
Finite Element Analysis of
electromagnetic devices
Maccon GmbH
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 2
Flux software
Modeling electromagnetic and thermal phenomena by Finite Elements method
Used by more than 1000 references (industry, research, universities)
everywhere in the world
Magnetic signature of ships
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 3
Flux : a general purpose FEM package
The reliable tool you need to explore Universe For:
Static analysis
AC steady state analysis
Transient analysis
To solve:
Magnetic
Electric
Thermal
Coupled applications:
Thermal/Magnetic or Electric
FEM and Circuit/System
FEM and motion
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 4
CAD geometries import • Inventor SAT / ACIS • CATIA V4, V5 • Inventor(Autodesk) • Pro / ENGINEER • IGES, IGES Advanced •STEP, STEP Advanced Mesh import • NASTRAN • PATRAN • UNV Ideas
An easy system definition
Focus on your exploration, not on the tool !
An easy 5 steps process
To provide the best simulation results in the shortest amount
of computation time, Flux is available in 2D and 3D
Flux Pre-process Analyse Post-process
CAD
Export CAD
Import Geometric
construction
Mesh Generation
Physical properties
Solving process
Results post- processing
Optimise your design
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 5
Flux Parametrics
An easy control for each parameter
Allows to control
all geometry and mesh constructs
applicable physical properties and excitation source values
each parameter can be entered as mathematical expressions into the
text fields
Use of expressions dramatically simplifies geometry creation, modifications
and re-use, and also post-processing!
Geometry construction
Mesh generation
Physical properties description
Electrical Circuit description
CAD Tools
Dedicated interface for easy models design
Dedicated healing mode by geometry
Mesh Density
Mesh Distribution
Mesh control tools
Magnetic, electric, dielectric, thermal properties
- ,, , , J Linear, non linear, spatial and time dependant properties
Non meshed coil
Electrical Circuit Component Values
Excitation/ Source values
Motor overlays will offer you infinite configurations
• 2D sketcher
• Face relaxation control
• one click for initial mesh !
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 6
An impressive post-processor
Show your computation results and convince !
Color-shaded maps or isovalue lines
within the problem region to look at
quantities like flux density or heat
distribution
Variation curves versus parameters
(time,position,geometric, physical...)
Make spatial spectrum computations
(FFT)
Analyze global quantities like
inductance, energy, force and
torques
Sensor defined before solving in
order to save time during post-
processing
Create animation (*.avi files)
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 7
A tool for the designer
Based on 10 years research work in G2Elab
Drives optimizations based on CEDRAT tools simulations
In GOT-It V1.0 only Flux V10.4.2 is connected (2D, 3D and Skewed
applications)
GOT-It : The CEDRAT Optimization Tool
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 8
Optimization general purpose
To find the optimum device or system configuration that allows reaching the
objectives:
Minimize the time-response of an actuator,
Minimize the losses in a machine,
Reduce torque ripples,…
By taking into account constraints
Geometrical (size, shape,…)
Physical (saturation, max current,…)
Other (price,…)
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 9
Optimization algorithms
Deterministic algorithms (SQP, Conjugate gradients,…)
Fast
Based on local function variations
Efficient to find local optimum
Need gradients of the functions
Stochastic algorithms (Genetic algorithms,Niching,…)
Time-consuming
Based on wide number of trials numerous evaluations
Efficient to find the global optimum
Do not need gradients of the functions
F
x
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 10
Software basic operation
Create the link to the FEM
Define the optimization problem
Objective function and constraints
Parameters range of variations
Choose an optimization algorithm or use the choice by default
Run the optimization
Analyze the results
Optimum solution, Pareto frontier
Automatic report (html format)
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 11
GOT-It Features
GOT-It allows performing :
Mono or multi objective optimizations, with or without constraints
Optimizations based on analytical functions or optimizations based on FEM
Sensitivity and robustness analysis
Parametric studies
By handling :
Analytical functions or functions derived from numerical models (or
combination)
Continuous and discrete parameters
Design Of Experiments
Response surfaces (polynomial, RBF, kriging, Space Mapping)
Deterministic and Stochastic algorithms
Automatic optimizer for indirect optimization (SSO)
Analysis tools
Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 12
Coupling technology
GOT-It drives automatically optimization based on FEM
Available in Flux v10.4.2
2D, 3D and Skew applications
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