FLUX / GOT-It Finite Element Analysis of electromagnetic devices Maccon GmbH

Transcription

1 FLUX / GOT-It Finite Element Analysis of electromagnetic devices Maccon GmbH Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 1

2 Flux software Modeling electromagnetic and thermal phenomena by Finite Elements method Magnetic signature of ships Used by more than 1000 references (industry, research, universities) everywhere in the world Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 2

3 For: Flux : a general purpose FEM package The reliable tool you need to explore Universe 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 3

4 An easy system definition 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 CAD Import Focus on your exploration, not on the tool! Flux Pre-process Analyse Post-process Geometric construction Mesh Generation Physical properties Solving process Results postprocessing CAD Export Optimise your design 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 Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 4

5 Flux Parametrics An easy control for each parameter Geometry construction Mesh generation Physical properties description Electrical Circuit description CAD Tools Dedicated interface for easy models design Dedicated healing mode by geometry 2D sketcher Mesh Density Mesh Distribution Mesh control tools Face relaxation control one click for initial mesh! 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 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! Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 5

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 postprocessing Create animation (*.avi files) Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 6

7 GOT-It : The CEDRAT Optimization Tool 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 V is connected (2D, 3D and Skewed applications) Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 7

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 8

9 Optimization algorithms Deterministic algorithms (SQP, Conjugate gradients, ) Fast Based on local function variations Efficient to find local optimum Need gradients of the functions F x 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 Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/2013 9

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/

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/

12 Coupling technology GOT-It drives automatically optimization based on FEM Available in Flux v D, 3D and Skew applications Entwurfswerkzeuge für elektrische Maschinen MACCON GmbH 09/04/