/PERTURB (Obsolete)
Block Format Keyword Multiply real values (following the defined normal distribution) to shell thicknesses of selected group of part.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| /PERTURB/ID | |||||||||
| Perturb_title | |||||||||
| F_Mean | Deviation | Min_cut | Max_cut | Seed | Idistri | ||||
| grpart_ID | |||||||||
Definition
| Field | Contents | SI Unit Example |
|---|---|---|
| F_Mean | Mean value of the normal
distribution (distribution of factors applied to shell thicknesses applied to selected parts) (Real) |
|
| Deviation | Deviation of the normal
distribution (Real) |
|
| Min_cut | Minimum
value (Real) |
|
| Max_cut | Maximum
value (Real) |
|
| Seed | Seed of random noise
(Integer) |
|
| Idistrib | Distribution type
(Integer) |
|
| grpart_ID | Part group
identifier (Integer, maximum 10 digits) |
Comments
- This option is multiplying generated real values (following the defined normal distribution) to shell thicknesses of selected group of part.
- Curve of probability density
function:
Figure 1. 
- Seed is an integer corresponding to the value used to initialize random number generation that should use for sensitivity analysis or model robustness investigation purpose.
- Two computations with the same values, Seed will return exactly to the same results.
- If random value is > Max_cut, random value is replaced with Max_cut.
- If random value is < Min_cut, random value is replaced with Min_cut.
- This option is compatible with /PROP/TYPE1.