*CONSTRAINED_JOINT

LS-DYNA Input Interface KeywordDefine a joint between two rigid bodies.

Format

(1) (2) (3) (4) (5) (6) (7) (8)
*CONSTRAINED_JOINT_TYPE_{OPTION}
If OPTION = ID, insert the following line.
(1) (2) (3) (4) (5) (6) (7) (8)
JID Title
(1) (2) (3) (4) (5) (6) (7) (8)
node_ID1 node_ID2 node_ID3 node_ID4 node_ID5 node_ID6

Definition

Field Contents SI Unit Example
TYPE
CYLINDRICAL
Cylindrical joint between node node_ID1 and node_ID2 and along direction (node_ID1, node_ID3).
REVOLUTE
Revolute joint between node node_ID1 and node_ID2 and along direction (node_ID1, node_ID3).
SPHERICAL
Cylindrical joint between node node_ID1 and node_ID2.
LOCKING
Rigid joint node node_ID1 and node_ID2.
TRANSLATIONAL
Translational joint between node node_ID1 and node_ID2 and along direction (node_ID1, node_ID3).
UNIVERSAL
Universal joint between node node_ID1 and node_ID2 and along local coordinate system (node_ID1, node_ID3, node_ID4).
PLANAR
Planar joint between node node_ID1 and node_ID2 and along local coordinate system (node_ID1, node_ID3, node_ID4)

No default

OPTION ID.
JID Joint ID.

(Integer)

Title Joint title.

(Character, maximum 70 characters)

node_ID1 Node identifier 1 for joint attached to rigid body A.

(Integer)

node_ID2 Node identifier 2 for joint attached to rigid body B.

(Integer)

node_ID3 Node identifier 3 for joint attached to rigid body A.

(Integer)

node_ID4 Node identifier 4 for joint attached to rigid body B.

(Integer)

node_ID5 Node identifier 5 for joint attached to rigid body A.

(Integer)

node_ID6 Node identifier 6 for joint attached to rigid body B.

(Integer)

Comments

  1. This keyword maps to /SPRING, /PROP/TYPE45 (KJOINT2), and /PART.
  2. It is recommended to have node_ID1 and node_ID2 at the same initial position.