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目前curvefitter软件只有内置的公式方程，能否添加一个功能，能够输入自定义的函数方程，来进行非线性曲线拟合。谢谢！

• to change the properties of chart
  [a] text size of legend & label & axes;
  [b] Color of line;
  [c] etc;
• Model evaluation
  [a] SD;
  [b] correlation coefficient；
  [c] PCCs;
  [d] ...
• Function icon of Curve Fitting

As it is a common source of errors and doubts between enginieers I would suggest you to add the prefix Enginieering Stress and Enginieering Strain (Biot) as required input data for the Hyperelastic models.

By other hand , which algorithm has Curvefitting2023 implemented,..Levenberg-Marquardt , Nelder_Mead,..?¿?

boundary layer meshing for CFD applications

show the value on the mouse cursor on the result contour

see the solver issue ticket.
https://gitlab.com/FrontISTR-Commons/FrontISTR/-/issues/552

test case: 073, 072

solve EM eigenmode and driven frequency problems

Curve fitting table crashes at import an Excel file.

Support GDS shape files

Solve beam/truss assembly in the structural analysis.
May involve different element types, such as beam+solid.

Export deformed surface mesh for the structural analysis.
The format can be STL, OBJ, VRML, 3MF, etc.

Polynomial 2nd order do not display all the coefficients. They show up overlapped and the user can only see three constants.

Add a new feature of 2D axisymmetric electrostatic analysis. For CC.

Show 3D annotations (arrows) for the boundary conditions like force

max/min value location/3d annotaion on the result contour

Support Elmer solver

2D plane stress structural analysis

Add initial stress GUI for OpenRadioss

https://help.altair.com/hwsolvers/rad/topics/solvers/rad/faq_rad_initial_stresses_r.htm?zoom_highlight=initial+stress

Support the composite analysis on the GUI. Like the ACP maybe?

Python scripting interface

More flexible property.

saved project files: 075_stl_mesh_cube.wsdb, 076_stl_mesh_shells.wsdb

WARNING: SU2 was not compiled for an AVX-capable architecture. Performance could be better,
see https://su2code.github.io/docs_v7/Build-SU2-Linux-MacOS/#compiler-optimizations

Support SPH features for OpenRadioss solver.

Projects can't be saved. ¿Is this a bug or software limitation?

The curvefitter software only has built-in formula equations. Can you add a custom function equation function? Thank you!

Support incremental force BC along the surface/edge, for the structural analysis.

HI,

Nice Software.
Talking about OGDEN .
I have noticed you are expressing the Strain energy density as a function of the reduced principal stretches- (the deviatoric Stretches instead of the principal stretches)
Is that the Ansys formulation?
Do you have any validation or verification file in which the result compares to Ansys?.
I can’t manage to get good results with this model.

Verify this issue, then fix it.

Brand new user and working on my first project. My tree display is missing anything choices under the "Answers" Object. I have no way to choose which solver to use. Any idea what's going on and how to fix it?

UPDATE - Apparently I have a newer version of the software and things are located in different area. I eventually found what I needed.

Better meshing capability for 3D shell model.
PJS.

OpenOAM, baram.

Add Prony shear relaxation for curve fitting

1. thermal stress
2. full-wave transient EM

We obtained stl model files from Micro-CT scans and had difficulties working with them in FEM. It would be great if we can get some warning/error messages when importing/meshing stl files for FEM when the model has some issues or speed up the process. Thanks!

Create a QtAddon.dll project holding all Qt related class in v2.9

Support geometry selection for the STL shapes, such as the face, and edge selections.
Support FEA as well.

Support boundary conditions for imported GDS shapes

I need to make curve fitting for the material. I accidentally closed the tab where the test data will be entered and I cannot open it again. I couldn't find any information about this on the internet. I deleted the program and reinstalled it. The window where I can enter the test data still does not open. How can I solve this in the application?

material data export and imort;

I just downloaded Welsim 2.3 and tried to run the test example hole_plate.wsdb.
I recieve the following error message: (see below)
Welsim 2.3 error.txt
returning Welsim to V2.2 the problem runs ok.

result probe label on the shape.
put a label on a specific point on the geometry and display a result at that point.

2D plane strain structural analysis

https://ibsimu.sourceforge.net/index.html

Support Calculix solver

like GMSH/OneLab, and motorCAD;