Tested with CGX 2.19 / CCX 2.19
- Modal analysis with preload
- Eigenvalue buckling analysis
- Shell edge load
| File | Contents |
|---|---|
| par.run.fbl | Control script for CGX |
| solve.inp | CCX input |
| vmodes.fbd | CGX script, vibration mode movies) |
| bmodes.fbd | CGX script, buckling mode movies) |
| test.py | Python script to run the full simulation |
The model is a flat L-shaped plate.
| Parameter | Value | Meaning |
|---|---|---|
h |
100 | edge length parameter in mm |
p |
1 | pressure in MPa |
Boundary conditions
- UY=0, UZ=0 at the upper edge (red)
- UX=0, UZ=0 at the left edge (green)
- UZ=0 at the lower (blue) and right (magenta) edges
- Line load in y-direction (1 N/mm), applied as pressure to surface
Slower
Set the appropriate values for the parameters in par.run.fbd and run the simulation using
> param.py par.run.fbl
> cgx -b run.fbl
If you want to run the analysis separately:
> ccx solve
The analysis consists of 3 steps:
- Static step, application of preload for the modal analysis
- Frequency step, modal analysis with preload
- Buckle step.
These are displayed using ds <n> a to get a sinusoidal animation
> cgx -b vmodes.fbd
These are displayed with
anim real
scal d 200
ds <n> a
to get a single-sided animation:
> cgx -b bmodes.fbd
