*DEFINE_SD_ORIENTATION

LS-DYNA Input Interface KeywordDefines stiffness direction of discrete springs.

Format

(1) (2) (3) (4) (5) (6) (7) (8)
*DEFINE_SD_ORIENTATION
VID VFLAG XT YT ZT N1 N2

Definition

Field Contents SI Unit Example
VID Direction identifier.

(Integer)

VFLAG
= 0 (Default)
Coordinate input.
= 2
Nodal input.

(Integer)

XT, YT, ZT If VFLAG = 0, the direction is specified by the vector XT, YT, ZT.

(Real)

[ m ]
N1, N2 If VFLAG = 2, the direction specified by nodes N1-N2.

(Integer)

Comments

  1. This keyword maps to the X-axis of /SKEW/FIX or /SKEW/MOV.
  2. The option “_TITLE” can be added to the end of this keyword. When “_TITLE” is included, an extra 80 characters long line is added after the keyword input line which allows an entity title to be defined.