Learning Forum

[jordanye]

I have a test fixture that I am trying to perform structural dynamic analysis on. I am using modal superposition to hopefully determine:

1. Amplitude and Phase FRFs
2. Response Spectrum (Shock Response Spectrum SRS)
3. Random Vibration output response

4. Transient Structural Dynamic Analysis

5. Fatigue analysis (LS-DYNA)

I've done all of these analyses for a small specimen, but as soon as I tried to do these same analyses for my mechanical assembly I get this error across the board
Data file file.db has incorrect format, is missing READ/WRITE permission, or is empty for RESUME.

I think It might be a storage issue on my HPC. I only have a few gigs left.  Not 100% sure though

Note: I have already have a modal analysis solution. 

- Solid elements for CNCed parts

- Shell elements for sheet metal parts. 

- Beam elements for bolts that hold everything together.

- No nonlinear contact because of modal superposition.

- We have no HPC for solving & must solve locally. 

[Dennis Chen]

I am relatively sure that's a hard drive issue.    and on your HPC side, you gotta have way more spaces regardless.   The modal analysis or pre-stressed modal analysis all need to have a very large file written out for subsequent analysis.