!AMPLITUDE¶
Specifies the time variation of variables that define load conditions. The time reference is specified by TIME.
!AMPLITUDE, NAME=<name> [, optional parameter]
VAL1, T1, VAL2, T2, VAL3, T3
# (up to four items per line)
| Parameter | |
|---|---|
NAME | Name (required) |
DEFINITION | Type (optional) |
TIME | Time type (optional) |
VALUE | Value type (optional) |
INPUT | External file name (optional) |
| Parameter | Value | Description |
|---|---|---|
NAME | <name> | AMPLITUDE name |
DEFINITION | TABULAR | Default (the only option in the current version) |
TIME | STEP TIME | Time from the start of the step (default) |
| TOTAL TIME | Time from the start of the analysis | |
VALUE | RELATIVE | Relative value (default) |
| ABSOLUTE | Absolute value | |
INPUT | <filename> | External file name (optional); may also be used with the second and subsequent lines |
| Variable | Type | Description |
|---|---|---|
VAL1 | R | Value at time T1 |
T1 | R | Time T1 |
VAL2 | R | Value at time T2 |
T2 | R | Time T2 |
VAL3 | R | Value at time T3 |
T3 | R | Time T3 |