Sorry I am late replying, have been ill.

I am relativly new to FreeCad and have no experience in Python, so i have possible misunderstood the post on Steady State Dynamic Analysis. So would like to check if I understood it correctly.

What I understood and did was make a simple part to test on before moving on to my actual part.

Then on my simple test part I set up a FEM study ( Chose material, Contraints, Force and Mesh) , Then ran the solver and edited the file to replace the 'Static Step' with the 'Steady State Dynamics Step' you wrote in the bridge thread.

It gives an error message : "*ERROR in steadystate: cannot open eigenvalue file for reading", but still says that it is done and opening results but never does.

(See below for complete message)

Code: Select all

```
0.0: Check dependencies...
0.1: Write completed.
0.0: CalculiX binary: C:/Program Files/FreeCAD_0.17.13387_x64_dev_win/bin/ccx.exe
0.0: Run CalculiX...
0.0: Starting CalculiX...
0.0: CalculiX is running...
0.2: CalculiX stopped.
0.2: ************************************************************
CalculiX Version 2.12, Copyright(C) 1998-2015 Guido Dhondt
CalculiX comes with ABSOLUTELY NO WARRANTY. This is free
software, and you are welcome to redistribute it under
certain conditions, see gpl.htm
************************************************************
You are using an executable made on Tue, Apr 4, 2017 11:04:04 PM
The numbers below are estimated upper bounds
number of:
nodes: 1792
elements: 1489
one-dimensional elements: 0
two-dimensional elements: 0
integration points per element: 4
degrees of freedom per node: 3
layers per element: 1
distributed facial loads: 0
distributed volumetric loads: 0
concentrated loads: 62
single point constraints: 198
multiple point constraints: 1
terms in all multiple point constraints: 1
tie constraints: 0
dependent nodes tied by cyclic constraints: 0
dependent nodes in pre-tension constraints: 0
sets: 5
terms in all sets: 6155
materials: 1
constants per material and temperature: 2
temperature points per material: 1
plastic data points per material: 0
orientations: 0
amplitudes: 2
data points in all amplitudes: 2
print requests: 2
transformations: 0
property cards: 0
STEP 1
Decascading the MPC's
Determining the structure of the matrix:
number of equations
5178
number of nonzero lower triangular matrix elements
165792
Composing the steady state response from the eigenmodes
*ERROR in steadystate: cannot open eigenvalue file for reading
0.2: CalculiX done!
0.3: Loading result sets...
```

I have attached my test part, but that is just a basic part made to see if I could get it to work.