All machines

Computation of maps may be incompatible with the Flux distribution mode

It is highly recommended to not use the Flux distribution mode while computing maps.

This restriction must be applied for the test Characterization / Model / maps test as well as for the export of maps to System (ref.: FXM-17954).

The graphs displayed in the test Mechanics / NVH have bad quality

Immediately after obtaining the results, the quality of the graphics is good. It deteriorates when you change windows and then come back to see the results (ref.: FXM-17258).

Import input function doesn’t work

In the Export / HyperStudy area, the import input function doesn’t work for thermal settings (ref.: FXM-17724).

Problem while exporting project to Flux2D

When the machine has a high number of slots and when the machine is fully represented, sometimes, the export of the project to Flux 2D (or Flux Skew) takes a huge computation time and fails (ref.: FXM-17694).

Issue with the number of decimals after dot

When setting the common user preferences "No. decimal after dot" equal to 5, the numbers less than 1 written with an exponent (1E-X) become equal to 0 (ref.: FXM-17838).

Export LUT – Issue with the temperature dependency of the stator resistance

While exporting the LUT, the value of the stator resistance doesn’t consider the temperature, which is defined in the thermal settings (ref.: FXM-17692).

Thermal computations - Problem of convergency

When losses are very high, there is a convergence issue with the thermal computations (ref.: FXM-15900).

This issue will be reevaluated since the thermal solver has been changed.

Null values are not well managed while designing the Frame and shaft.

Null values are allowed for designing the housing, bearing, or shaft dimensions, but this leads to the wrong thermal analysis. It is highly recommended not to use null values for the inputs considered (ref.: FXM-14705).

Export to FeMT with too long output path

The Flux script crashes when the output path for FeMT export is too long (ref.: FXM-15471).

Fault in the coupling FluxMotor-HyperStudy

An error in the FluxMotor process doesn't stop the HyperStudy execution (ref.: FXM-15402).

Issue with exported Flux Skew projects

After exporting a Flux Skew project, if the user solves the project, deletes the results, and then solves again, the running of the project fails (ref.: FXM-15075).

The color of wires is bad

The color of wires displayed in the slots is not correct while using Flux Skew export (ref.: FXM-16942).

Error while opening a motor (2020.1) with null shaft extension.

Opening a motor built with version 2020.1 (or older) with a null shaft extension leads to an error. With new versions, a null shaft extension is forbidden (ref.: FXM-14684).

Air material properties are wrong for high temperature.

This issue impacts our internal computation processes during transient thermal solving. Indeed, some iterations involve very high temperature (more than 3000 °K), according to the Newton Raphson non-linear solving method. During the resolution, this can lead to negative conductivity and viscosity, which may make the computation fail (ref.: FXM-14465).

Note: In case of a problem, an “Air material” with the right parameters can be provided.

When an IO cannot be loaded, the test results are not accessible.

When an IO cannot be loaded, the whole process that loads all the test results is stopped. As a result, no test is visible, although the issue may concern one result in a particular test (ref.: FXM-13941).

A wedge and/or inter-coil insulation region leads to a wrong slot equivalent thermal conductivity.

The slot radial thermal conductivity, which is automatically provided by the FluxMotor® in the "Cooling-Internal" context and used in all thermal tests, is wrong if the slot contains faces "wedge" or "inter-coil insulator" (ref.: FXM-13896).

Power electronics and coupling with HyperStudy®

For tests where the setting "Electronics" is available, data like power electronics stage, maximum efficiency, and its rated power can be selected for generating a connector for HyperStudy®, but it should not be.

In the Export-HyperStudy® area, when the selected test is “Working Point, T-N”, the settings of “Electronics” - "Max efficiency", and "Rated Power" - are exported even if the associated option is not selected (ref.: FXM-13726).

Winding environment – MMF computation

The counterclockwise sequence (MMF computation) is not considered in the Altair® Flux® model, which one can export. Only the clockwise phase sequence is considered (ref.: FXM-10280).

Using "phase sequence" set to "Counterclockwise" leads to wrong results in tests (ref.: FXM-13358).

Flux density isovalues

When a skewed topology is considered (synchronous machines or induction machines), the flux density isovalues, the vector potential isolines, and the rotor bars current density isovalues are not displayed (ref.: FXM-12564).