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

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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

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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

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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 !

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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)

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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

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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,…)

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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

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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)

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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

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Coupling technology

GOT-It drives automatically optimization based on FEM

Available in Flux v10.4.2

2D, 3D and Skew applications