List of Flux 2024 new features
New features dealing with Meshing
New features | Description |
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MeshGems removed and replaced by ASML | MeshGems is no longer available, and has been replaced by default by the mesher Altair Solid Mesher Library. ASML Library has been updated. |
New features dealing with Physics
New features | Description |
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Importing mechanical stress distributions into Flux 2D |
It is now possible to import a spatial distribution of mechanical constraints evaluated with SimLab/OptiStruct into a Flux 2D project. The distribution is imported as a spatial quantity and assigned automatically to Laminated magnetic non-conducting regions with the Mechanical Stress dependence option and characterized by a material with a valid B(Stress) property. This is achieved through a new Constraint type now available for laminated regions (Defined by a spatial variable distribution) that admits all kinds of Flux expressions, including spatial quantities that may have not been generated by a previous import (i.e., spatial quantities or expressions defined by the user by classical means). This feature allows users to model magneto-mechanical effects resulting from mechanical constraints (e.g., centrifugal forces or residual stress related to manufacturing) more accurately. The command to perform this import is available in Flux 2D while in pre-processing for Transient Magnetic and Magnetostatic applications through the Physics menu (options Mechanical stress distributions → Import spatial distribution from SimLab/OptiStruct). Further information on how to use this feature is available in the user guide (chapter Importing mechanical stress distributions into Flux 2D). |
Convert a 2D magnetic application in a Skewed magnetic application (rotating electrical machines) | From 2024 Altair Flux version, 2D users can take advantage of the new Convert current application → to Skew module feature. 2D magnetic applications are easily converted to Skew module allowing the electrical machines designers to analyze the skewing effect on the machines performance. |
Predefined LS model for two new electrical steel sheets | The library of predefined electrical steel sheets
for materials implementing the Loss Surface (LS)
model for the evaluation of iron losses has been
expanded. Two new electrical steel grades have been added:
NO25 and M250-50A. To use them in a simulation, the user must create a material with a B(H) magnetic property of type 'Sheet iron described by LS model' using one of the new predefined sheets and then assign it to a laminated magnetic region. Alternatively, in a solved project containing laminated magnetic regions characterized by other materials, the new predefined sheets may also be employed to evaluate iron losses à posteriori with the help of the 'Computation of iron losses' command, by selecting the option 'LS predefined sheets' for the model of losses. |
New features dealing with Solving
New features | Description |
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Improvements of Parametric Distribution Solving |
Some improvements have been added to Flux 2024 regarding the Parametric Distribution Solving:
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New features dealing with Flux e-Machine Toolbox ( FEMT)
New features | Description |
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Iron losses computation strategy | From version 2024, with the
MTPA and MTPV
command modes only, the iron losses are computed using a new
internal method called "Half cycle". This method allows to compute
the iron losses over half an angular period, thus reduces the total
number of computation steps and therefore improves performance by
reducing computation time without altering the results. Note: This "Half cycle" method is not
available for the MTPA Fast and
MTPV Fast command modes.
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Updated/New macros
Updated / New macros |
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WFM_LUT_2D_4SystemAnalysis_Half.PFM
(New) This macro is an adaptation of the LUT_2D_4SystemAnalysis macro for Wound Field motor. This macro can be found in the Macros_4SystemAnalysis directory. Remember: This macro
creates look up table of φDQ,
LD, LQ and
torque versus ID,
IQ, rotor position and
IDCRotor. It
will create a new Magneto-Static project from the
magnetic transient one. In the Magneto-Static project
the current is driven with ID,
IQ and
IDCRotor allowing to
extract easily all the needed tables. At the end of the
oml file in comment there is the possibility to display
torque, joule losses, static and dynamic inductances
versus ID and IQ for
a given value of IDCRotor
with Altair Compose.
![]() Important: It is
recommended to use those macros with parallel computing
on to have correct computation time.
|
CreateParameterizedArcofCircle.PFM
(New) this new macro allows creating parameterized arc of circle which are compatible with the macro creating parameterized part for FluxMotor. |
CreateFluxMotorInnerMagnetWithGeometricParameter.PFM
(Update) This macro has been modified in order to be more robust. The goal is to transfer geometric parameters from Flux to FluxMotor part |
Find_Rotor_Angle.PFM (2D, 3D and Skew macros) (Update) Find_Rotor_Angle macro now works for Wound Field Motor or any type of motors with coil conductors at the rotor. Rotor currents are now correctly used to compute the rotor contribution to the magnetic flux density. Find_Rotor_Angle_Skew now works with every type of skewing that have been developed in Flux:
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Updated/New examples
Description |
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FluxMotor Tutorial : Overview This tutorial is about showing how FluxMotor software can be used as a starting point to run first performance analysis and choose the correct topology and physic parameters for your electric motor:![]() This tutorial gives an overview of the basic FluxMotor workflow from geometry creation to performance analysis of your motor. This covers the steps you would follow to realize pre-design steps of an electrical machine with given specifications. Note: For more information, here.
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FluxMotor Tutorial : "Parametrized Part Creation" and "Unparametrized Part Creation" There are two tutorials that explains how to create the excel file that can be imported in FluxMotor to analyze your geometry.![]() One tutorial is about using Flux software and its macros to create a rotor and stator part starting from either a CAD file or a Flux project. The other one takes a part excel file and shows how to modify it in order to have a parametrized part which geometry parameters can be modified in Motor Factory. Note: For more information, click
here.
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New "Flux in SimLab" Examples
New Tutorials are planed for SimLab 2024 release. Each tutorial has a dedicated Altair Community page where the user could find a Summary of the tutorial and the file to download. Some Tutorials could be still in progress. The dedicated Altair community page will be updated as soon as possible.
Description | illustration |
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Skew Transient Magnetic - PMSM with a step-skewed rotor The studied device, a permanent magnet synchronous motor (PMSM) presented in the figure in the right, includes the following elements:
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Skew Transient
Magnetic - PMSM with a continuous-skewed
stator The studied device, a permanent magnet synchronous motor (PMSM) presented in the figure in the right, includes the following elements:
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2D Transient
Magnetic - Wound Field Rotor Motor The
studied device, a wound field synchronous motor, is running
in motor mode. As presented in the figure below, it includes
the following elements:
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3D Magnetic AC -
Forced cooling at the end of the heating The studied device is composed of a mobile billet and a supply inductor. The goal is to simulate a forced cooling process at the end of heating (when the billet is out of the coil). |
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Parasitics
Extraction - Power Module The studied device is a power electronic module component. The entire module is assumed to be made of conducting material and the goal is to compute the Z and S parameter. |
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Supplied Conductors
AC - Busbar The device studied is a busbar. It is a copper device and the purpose is to calculate the joule losses in the geometry, and the electric current in the RL loads. |
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