TIC (Transient Initial Condition)

Description

The TIC entry defines values for the initial conditions of variables used in transient response analysis. Both displacement and velocity may be specified at independent degrees of freedom. Note that the INITVEL entry and the ROTVEL entry can be used as an alternative to the TIC entry to define initial velocities for parts of the model in a more convenient form.

Format

1	2	3	4	5	6	7	8	9	10
TIC	SID	G	C	U0	V0

Example

TIC

10

25

2

12.5

-5.0

Field	Definition	Type	Default
SID	Set identification number.	Integer > 0	Required
G	Grid point identification number.	Integer > 0	Required
C	Component number of global coordinate (up to six unique digits may be placed in the field with no embedded blanks.)	0 ≤ Integer ≤ 6	Required
U0	Initial displacement.	Real	0.0
V0	Initial velocity.	Real	0.0

Remarks

1. Transient initial condition sets must be selected with the Case Control command IC = SID.
2. If no TIC set ID selected in the Case Control Section, all initial conditions are assumed zero.
3. Initial conditions for coordinates not specified on TIC entries will be assumed zero.