LS-DYNA PARSE PARAMETERS FROM FILE¶
Parses *PARAMETER definitions from an LS-DYNA keyword file and returns them as a structured dataset. Use this worker to extract named parameters (e.g., design variables) for downstream DOE, optimisation, or deck-authoring workflows, including optional percentage-range metadata for each parameter.
When to use¶
Tagged: deck, design_variables, keyword, lsdyna, parameter_extraction, parameters, parse.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| LS-DYNA Keyword File | file_input_file | file | — | ✓ | LS-DYNA keyword (.k / .key / .inc) file from which *PARAMETER cards will be parsed; must be a valid LS-DYNA input deck. |
| Solver Type | solver_type | select | lsdyna | ✓ | Solver dialect used to interpret the keyword file; currently only ‘lsdyna’ is supported — leave at the default value. |
| Constants | constants | scalar | — | Comma-separated list of parameter names that should be treated as constants and excluded from the variable range output; leave blank to treat all parsed parameters as free variables. | |
| Min Percentage | min_percentage | scalar | 50 | Lower bound expressed as a percentage offset from each parameter’s nominal value (e.g., 50 means −50 %); used to populate the min-range column of the output dataset. Default is 50. | |
| Max Percentage | max_percentage | scalar | 50 | Upper bound expressed as a percentage offset from each parameter’s nominal value (e.g., 50 means +50 %); used to populate the max-range column of the output dataset. Default is 50. | |
| Step Percentage | step_percentage | scalar | 20 | Increment between discrete levels expressed as a percentage of the nominal value; used to populate the step column of the output dataset. Default is 20. | |
| Format | format | select | no | LS-DYNA field-width format of the source keyword file: ‘short’ (10-character), ‘long’ (20-character), or ‘auto’ for automatic detection; leave at ‘no’ (default) to let the parser decide automatically. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| Parameters | parameters | dataset | Dataset table where each row represents one parsed *PARAMETER entry, containing columns for parameter name, nominal value, min bound, max bound, and step size derived from the configured percentage inputs. |
Disciplines¶
- cae.preprocessing.deck_authoring
- cae.preprocessing.scenario
- design_exploration.doe
Auto-generated from platform schema. Worker id: lsdyna_parse_parameters_from_file. Schema hash: 21f231f5fa29. Hand-curated docs in workerexamples/ override this page when present.