*DAMPING_RELATIVE
LS-DYNA Input Interface KeywordDefines the Rayleigh mass damping relative to the average velocity of the set of nodes or rigid part motion.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
*DAMPING_RELATIVE | |||||||
CDAMP | FREQ | PIDRB | PSID | DV2 | Fct_ID |
Definition
Field | Contents | SI Unit Example |
---|---|---|
CDAMP | Fraction of critical
damping. (Real) |
|
FREQ | Damping
frequency. (Real) |
|
PIDRB | Rigid part identifier for reference
motion. (Integer) |
|
PSID | Part set identifier where damping
is applied. (Integer) |
|
DV2 | Mass quadratic damping
coefficient. (Real) |
|
Fct_ID | Function identifier defining
damping coefficient scaling factor as a function of time.
CDAMP will be ignored if
Fct_ID is
non-zero. (Integer) |
Comments
- This keyword maps to /DAMP/VREL.